阅读说明：本技术 一种浅埋回填土地层用抗浮抗剪隧道管片结构 (Anti-floating and anti-shearing tunnel segment structure for shallow backfill stratum ) 是由 王铁柱 徐志程 周毅 于 2021-09-22 设计创作，主要内容包括：本发明涉及一种浅埋回填土地层用抗浮抗剪隧道管片结构,第一管片的顶部两端分别与两个第二管片进行连接,第一管片内卡合组件用于将第一管片和第二管片进行连接,第二管片的顶端和第三管片的底端相碰触,第二管片的一侧内壁固定连接有第二弧板,第二弧板内第二螺栓靠近第二管片的一端贯穿第三管片并与第二管片螺纹连接,第三管片与第四管片相碰触,第三管片内设有用于将第三管片和第四管片进行连接的连接组件,第四管片内设有用于消减位错应力的消能组件；解决目前安装在浅埋回填土地层隧道中隧道管片容易向上起浮,隧道管片无法对上方存在的位错应力进行有效消减,容易使隧道管片出现裂纹或者隧道管片破碎,影响隧道正常使用的问题。(The invention relates to a floating-resistant and shear-resistant tunnel segment structure for a shallow backfill stratum, wherein two ends of the top of a first segment are respectively connected with two second segments, a clamping component in the first segment is used for connecting the first segment with the second segments, the top ends of the second segments are contacted with the bottom ends of third segments, a second arc plate is fixedly connected to the inner wall of one side of each second segment, one end, close to the second segment, of a second bolt in the second arc plate penetrates through the third segment and is in threaded connection with the second segment, the third segment is contacted with a fourth segment, a connecting component for connecting the third segment with the fourth segment is arranged in the third segment, and an energy dissipation component for reducing dislocation stress is arranged in the fourth segment; the problem of install tunnel section of jurisdiction upwards rise easily in shallow backfill stratum tunnel and float at present, tunnel section of jurisdiction can't effectively subduct the dislocation stress that exists to the top, makes tunnel section of jurisdiction crackle or tunnel section of jurisdiction breakage appear easily, influences the normal use of tunnel is solved.)

1. A anti-floating and anti-shearing tunnel segment structure for a shallow backfill stratum comprises a tunnel tube (1) positioned in a tunnel, and is characterized in that the tunnel tube (1) comprises a first segment (2), two second segments (3), two third segments (4) and a fourth segment (5), a plurality of anchor rods (6) are arranged in the first segment (2), the bottom ends of the anchor rods (6) penetrate through the first segment (2), two ends of the top of the first segment (2) are respectively connected with the two second segments (3), two groups of clamping components are arranged in the first segment (2) and are used for connecting the first segment (2) with the second segments (3), the top end of the second segment (3) is contacted with the bottom end of the third segment (4), a second arc plate (13) is fixedly connected to the inner wall on one side of the second segment (3), and one side of the second arc plate (13) close to the second segment (3) is attached to the inner wall of the third segment (4), a second bolt (14) is arranged in the second arc plate (13), one end of the second bolt (14) close to the second segment (3) penetrates through the third segment (4) and is in threaded connection with the second segment (3), one end of the third segment (4) far away from the second segment (3) is in contact with the fourth segment (5), a connecting assembly for connecting the third segment (4) with the fourth segment (5) is arranged in the third segment (4), an energy dissipation assembly for reducing dislocation stress is arranged in the fourth segment (5), and an energy dissipation lining layer (30), an energy dissipation damping layer (31) and a waterproof layer (32) are sequentially arranged in the tunnel pipe (1) from inside to outside.

2. The anti-floating and anti-shearing tunnel segment structure for the shallow backfill soil formation as claimed in claim 1, wherein the clamping component comprises a first arc plate (9) fixedly connected to one side of the top of the first segment (2), one side of the bottom of the first arc plate (9) is attached to the inner wall of the second segment (3), a first bolt (10) is arranged in the first arc plate (9), the bottom end of the first bolt (10) is in threaded connection with the second segment (3), a first groove (7) is arranged at one end of the second segment (3) close to the first segment (2), a first convex plate (8) is fixedly connected to one end of the first segment (2) close to the first segment (2), one end of the first convex plate (8) far away from the first segment (2) extends into the first groove (7) and is in sliding fit with the first groove (7), and one end of the second segment (3) close to the first segment (2) is fixedly connected with two symmetrical second convex plates The plate (12), the one end that first section of jurisdiction (2) is close to second section of jurisdiction (3) is equipped with two symmetrical second recesses (11), and second flange (12) are close to the one end of first section of jurisdiction (2) and extend to in second recess (11) and with second recess (11) sliding fit.

3. The anti-floating shear tunnel segment structure for shallow backfill soil formation according to claim 1, characterized in that the connection assembly comprises a first hydraulic channel (15) and a second hydraulic channel (16) arranged in a third tube piece (4), and the first hydraulic channel (15) is communicated with the second hydraulic channel (16), a first piston (17) is connected in the first hydraulic channel (15) in a sealing and sliding way, one side of the first piston (17) close to the fourth pipe piece (5) is fixedly connected with a connecting plate (18) extending into the fourth pipe piece (5), a second piston (21) is connected in the second hydraulic channel (16) in a sealing and sliding way, a connecting rod (20) is fixedly connected to one side of the second piston (21) far away from the third pipe piece (4), one end of the connecting rod (20) far away from the second piston (21) is fixedly connected with a push plate (19).

4. The anti-floating shear tunnel segment structure for the shallow backfill stratum according to claim 1, wherein the energy dissipation assembly comprises a sliding groove (22) arranged at the top of a fourth segment (5), a plurality of damping springs (23) are fixedly connected to the bottom inner wall of the sliding groove (22), the top ends of the damping springs (23) are fixedly connected with the same damping plate (24), the bottom of the damping plate (24) is fixedly connected with a sliding rod (25), the bottom end of the sliding rod (25) penetrates through the fourth segment (5) in a sliding manner and is fixedly connected with a trapezoidal block (26), the bottom of the fourth segment (5) is slidably connected with two symmetrical arc sliding plates (27), the arc sliding plates (27) are in sliding fit with the trapezoidal block (26), the arc sliding plates (27) touch the pushing plate (19), a third arc plate (28) is fixedly connected to the inner wall of one side of the third segment (4), the top end of the third arc plate (28) is fixedly connected with a rubber spring (29), and the top end of the rubber spring (29) is in contact with the bottom of the arc sliding plate (27).

5. The segment structure of the anti-floating and anti-shearing tunnel for the shallow backfill stratum according to the claim 1, characterized in that the ends of the third segment (4) and the second segment (3) close to each other are fixedly connected with rubber blocks (40).

6. The segment structure of the anti-floating and anti-shearing tunnel for the shallow backfill formation as claimed in claim 1, wherein the adjacent side of the second segment (3) and the third segment (4) is provided with a deformation joint (41).

7. The anti-floating shear tunnel segment structure for the shallow backfill ground formation according to claim 2, wherein a second damping block (39) is fixedly connected to the top end of the first arc plate (9), and the top of the second damping block (39) is fixedly connected to the bottom of the second arc plate (13).

8. The anti-floating shear tunnel segment structure for the shallow backfill ground formation according to claim 4, wherein the top of the second arc plate (13) is fixedly connected with a first damping block (38), and the top of the first damping block (38) is fixedly connected with the bottom of the third arc plate (28).

9. The shallow anti-floating shear tunnel segment structure for the backfill soil formation according to claim 1, characterized in that, the bottom inner wall of anchor rod (6) is connected with screw rod (33) in a rotating manner, one side that anchor rod (6) kept away from each other all is equipped with a plurality of arc chutes (34), arc chute (34) internal sliding connection has arc plate (37), anchor rod (6) internal sliding connection has a plurality of nut blocks (36), and the top thread of screw rod (33) runs through nut block (36), the bottom of nut block (36) is connected with dwang (35) in a rotating manner, and the bottom of dwang (35) is connected with the top rotation of arc plate (37).

10. The anti-floating shear tunnel segment structure for the shallow backfill ground layer as claimed in claim 9, wherein a fixing block (42) is fixedly connected in the anchor rod (6), and the top end of the screw rod (33) is rotated to penetrate through the fixing block (42).

Technical Field

The invention belongs to the technical field of tunnel engineering, and relates to a floating-resistant and shear-resistant tunnel segment structure for a shallow-buried backfill stratum.

Background

In recent years, shield tunnels in China are rapidly developed and widely applied to the fields of subways, railways, highways, water and gas transmission and the like, so that the efficiency of human and object transportation is greatly improved, and the transportation cost is saved. In the construction process of the shield tunnel, the situation of crossing special strata, such as crossing active faults, soft and hard uneven strata, top load sudden change strata or geological condition sudden change strata and the like, is often encountered. When the shield tunnel passes through the special stratum, the risk of dislocation between the segment lining rings often exists, and the problem is one of important concerns when the shield tunnel is arranged in the special stratum.

However, in the prior art, after the tunnel segment is installed in the tunnel, the tunnel segment will float upwards slowly with the internal extrusion force of the soil layer along with the time, and the tunnel will break after long-term falling, in addition, the prior tunnel segment needs a plurality of persons to be matched with each other during installation, the adjacent segments are connected by a plurality of bolts, the installation is complicated, in addition, the tunnel segment can be subjected to dislocation stress in special strata, in the prior art, most of the tunnel segments are cast by concrete, and two adjacent tunnel segments are connected by bolts, therefore, the tunnel segment cannot effectively reduce the dislocation stress existing above, so that the tunnel segment is easy to crack and even break under the action of the dislocation stress, the normal use of the tunnel is seriously influenced, and the major traffic accident and the economic loss are caused.

Disclosure of Invention

In view of the above, the invention provides an anti-floating and anti-shearing tunnel segment structure for a shallow backfill stratum, which aims to solve the problems that a tunnel segment installed in a shallow backfill stratum tunnel at present is easy to float upwards, the tunnel segment cannot effectively reduce dislocation stress existing above the tunnel segment, the tunnel segment is easy to crack or the tunnel segment is easy to break, and the normal use of the tunnel is influenced.

In order to achieve the purpose, the invention provides the following technical scheme:

a floating-resistant and shear-resistant tunnel segment structure for a shallow backfill formation comprises a tunnel tube positioned in a tunnel, wherein the tunnel tube comprises a first segment, two second segments, two third segments and a fourth segment, a plurality of anchor rods are arranged in the first segment, the bottom ends of the anchor rods all penetrate through the first segment, the two ends of the top of the first segment are respectively connected with the two second segments, two groups of clamping components are arranged in the first segment and are used for connecting the first segment with the second segments, the top ends of the second segments are contacted with the bottom ends of the third segments, a second arc plate is fixedly connected to the inner wall of one side of the second segment, one side of the second arc plate close to the second segment is attached to the inner wall of the third segment, a second bolt is arranged in the second arc plate, one end of the second bolt close to the second segment penetrates through the third segment and is in threaded connection with a second thread, the tunnel pipe is characterized in that one end, far away from the second pipe piece, of the third pipe piece is in contact with the fourth pipe piece, a connecting assembly used for connecting the third pipe piece and the fourth pipe piece is arranged in the third pipe piece, an energy dissipation assembly used for reducing dislocation stress is arranged in the fourth pipe piece, and a concrete lining layer, an energy dissipation shock absorption layer and a waterproof layer are sequentially arranged in the tunnel pipe from inside to outside.

Further, the clamping component comprises a first arc plate fixedly connected with one side of the top of the first pipe piece, one side of the bottom of the first arc plate is attached to the inner wall of the second pipe piece, a first bolt is arranged in the first arc plate, the bottom end of the first bolt is in threaded connection with a second pipe piece, a first groove is arranged at one end of the second pipe piece close to the first pipe piece, a first convex plate is fixedly connected at one end of the first pipe piece close to the second pipe piece, and one end of the first convex plate far away from the first pipe piece extends into the first groove and is in sliding fit with the first groove, one end of the second pipe sheet close to the first pipe sheet is fixedly connected with two symmetrical second convex plates, one end of the first pipe sheet close to the second pipe sheet is provided with two symmetrical second grooves, and one end of the second convex plate close to the first pipe piece extends into the second groove and is in sliding fit with the second groove.

Further, coupling assembling says with the second hydraulic pressure including the first hydraulic pressure that sets up in the third section of jurisdiction, and first hydraulic pressure says that to be linked together with the second hydraulic pressure, first hydraulic pressure says that the internal seal sliding connection has first piston, one side fixedly connected with that first piston is close to the fourth section of jurisdiction extends to the connecting plate in the fourth section of jurisdiction, the second hydraulic pressure says that the internal seal sliding connection has the second piston, one side fixedly connected with connecting rod of third section of jurisdiction is kept away from to the second piston, the one end fixedly connected with push pedal of second piston is kept away from to the connecting rod.

Further, the energy dissipation assembly comprises a sliding groove arranged at the top of the fourth pipe piece, a plurality of damping springs are fixedly connected to the inner wall of the bottom of the sliding groove, the damping springs are multiple, the top ends of the damping springs are fixedly connected with the same damping plate, the bottom of the damping plate is fixedly connected with a sliding rod, the bottom of the sliding rod penetrates through the fourth pipe piece and is fixedly connected with the trapezoidal block, the bottom of the fourth pipe piece is slidably connected with two symmetrical arc-shaped sliding plates, the arc-shaped sliding plates are in sliding fit with the trapezoidal block, the arc-shaped sliding plates are in contact with the pushing plate, a third arc plate is fixedly connected to the inner wall of one side of the third pipe piece, a rubber spring is fixedly connected to the top end of the third arc plate, and the top end of the rubber spring is in contact with the bottom of the arc-shaped sliding plate.

Further, the equal fixedly connected with block rubber of one end that third section of jurisdiction and second section of jurisdiction are close to each other when second section of jurisdiction and third section of jurisdiction take place slight displacement, can avoid second section of jurisdiction and third section of jurisdiction to touch the position through the block rubber and appear broken phenomenon.

Furthermore, one side that second section of jurisdiction and third section of jurisdiction are close to each other is equipped with the movement joint, can increase the anti deformability of second section of jurisdiction and third section of jurisdiction through the movement joint.

Furthermore, the top end of the first arc plate is fixedly connected with a second damping block, the top of the second damping block is fixedly connected with the bottom of the second arc plate, and the extrusion force of the second arc plate on the first arc plate can be reduced through the second damping block.

Furthermore, the top of the second arc plate is fixedly connected with a first damping block, and the top of the first damping block is fixedly connected with the bottom of the third arc plate.

Further, the bottom inner wall of stock rotates and is connected with the screw rod, one side that the stock kept away from each other all is equipped with a plurality of arc spouts, sliding connection has the arc in the arc spout, sliding connection has a plurality of nut pieces in the stock, and the top screw thread of screw rod runs through the nut piece, the bottom of nut piece rotates and is connected with the dwang, and the bottom of dwang rotates with the top of arc to be connected, rotates the screw rod, screw rod and nut piece threaded connection, and the nut piece begins to slide downwards, and the nut piece can promote the arc to slide to the outside along the orbit of arc spout, makes the arc insert in the soil layer, increases the steadiness of first section of jurisdiction and ground.

Further, the anchor rod is internally and fixedly connected with a fixing block, the top end of the screw rod rotates to penetrate through the fixing block, and the stability of the screw rod can be improved through the fixing block.

The invention has the beneficial effects that:

1. according to the anti-floating and anti-shearing tunnel segment structure for the shallow backfill stratum, the push plate and the connecting rod are pushed to slide outwards, hydraulic oil in the second hydraulic channel flows into the first hydraulic channel, the first piston and the connecting plate can be pushed by the hydraulic oil to slide along the track of the first hydraulic channel and extend into the fourth segment, the fourth segment can be connected with the two third segments, the third segment can be connected with the fourth segment by easily pushing the push plate, and the anti-floating and anti-shearing tunnel segment structure is simple and convenient and does not need to use multiple bolts.

2. According to the anti-floating and anti-shearing tunnel segment structure for the shallow backfill stratum, when the arc-shaped sliding plate is extruded by the trapezoidal block to slide towards two sides, the arc-shaped sliding plate can limit the push plate, prevent the third segment and the fourth segment from being disconnected due to the retraction of the push plate and the connecting plate, and reduce dislocation stress through the rubber spring.

3. The anti-floating and anti-shearing tunnel segment structure for the shallow backfill stratum disclosed by the invention is characterized in that one end, close to each other, of the second segment and the third segment is fixedly connected with the rubber block, and when the second segment and the third segment slightly displace, the rubber block can prevent the second segment and the third segment from being crushed at the contact position.

4. According to the anti-floating and anti-shearing tunnel segment structure for the shallow backfill stratum, the screw rod is rotated, the screw rod is in threaded connection with the nut block, the nut block starts to slide downwards, the nut block can push the arc-shaped plate to slide outwards along the track of the arc-shaped sliding groove, the arc-shaped plate is inserted into a soil layer, the stability of the first segment and the ground is improved, the first segment is prevented from floating upwards under extrusion force, and the anti-floating capacity of a tunnel tube is improved.

5. According to the anti-floating and anti-shearing tunnel segment structure for the shallow backfill stratum, the arc-shaped plates slide towards two sides by rotating the screw rod, so that the contact area of the arc-shaped plates and the soil layer is increased, the first segment can be tightly attached to the inner wall of the bottom of a tunnel, the anti-floating capacity of a tunnel tube is increased, dislocation stress above the tunnel tube can be gradually reduced by means of mutual matching among the shock absorption plates, the shock absorption springs, the trapezoidal blocks, the arc-shaped sliding plates and the rubber springs, meanwhile, the push plate can be limited, and the connection stability of the third segment and the fourth segment is increased.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.

Drawings

For the purposes of promoting a better understanding of the objects, aspects and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:

FIG. 1 is a front view of a segment structure of an anti-floating and anti-shearing tunnel for a shallow backfill stratum according to the invention;

FIG. 2 is a front sectional view of the connection between a first segment and a second segment in the anti-floating and anti-shear tunnel segment structure for a shallow backfill stratum according to the present invention;

FIG. 3 is a three-dimensional view of a first segment in a segment structure of an anti-floating and anti-shearing tunnel for a shallow backfill stratum according to the invention;

FIG. 4 is a three-dimensional view of a second arc plate in the anti-floating shear tunnel segment structure for shallow backfill strata according to the invention;

FIG. 5 is a front sectional view of the connection between the second segment and the third segment in the anti-floating and anti-shear tunnel segment structure for shallow backfill formation according to the present invention;

FIG. 6 is a three-dimensional view of a third segment in the anti-floating and anti-shear tunnel segment structure for shallow backfill strata according to the present invention;

FIG. 7 is a front sectional view of the connection between the third segment and the fourth segment in the anti-floating and anti-shear tunnel segment structure for shallow backfill formation according to the present invention;

FIG. 8 is a three-dimensional view of a fourth segment in the anti-floating and anti-shear tunnel segment structure for shallow backfill strata according to the present invention;

FIG. 9 is an enlarged view taken at A of FIG. 7 in accordance with the present invention;

FIG. 10 is a partial cross-sectional view of an energy absorbing shock-absorbing layer and a waterproof layer in a segment structure of an anti-floating shear tunnel for a shallow backfill formation according to the present invention;

FIG. 11 is a front sectional view of an anchor rod in a segment structure of an anti-floating and anti-shearing tunnel for a shallow backfill stratum according to the present invention;

fig. 12 is a cross-sectional view taken along line B-B of fig. 11 in accordance with the present invention.

Reference numerals: 1. a tunnel pipe; 2. a first tube sheet; 3. a second segment; 4. a third segment; 5. a fourth segment; 6. an anchor rod; 7. a first groove; 8. a first convex plate; 9. a first arc plate; 10. a first bolt; 11. a second groove; 12. a second convex plate; 13. a second arc plate; 14. a second bolt; 15. a first hydraulic passage; 16. a second hydraulic passage; 17. a first piston; 18. a connecting plate; 19. pushing the plate; 20. a connecting rod; 21. a second piston; 22. a sliding groove; 23. a damping spring; 24. a damper plate; 25. a slide bar; 26. a trapezoidal block; 27. an arc-shaped sliding plate; 28. a third arc plate; 29. a rubber spring; 30. a concrete lining layer; 31. an energy dissipation and shock absorption layer; 32. a waterproof layer; 33. a screw; 34. an arc-shaped chute; 35. rotating the rod; 36. a nut block; 37. an arc-shaped plate; 38. a first damping block; 39. a second damping block; 40. a rubber block; 41. deformation joints; 42. and (5) fixing blocks.

Detailed Description

The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention in a schematic way, and the features in the following embodiments and examples may be combined with each other without conflict.

Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in the drawings in which there is no intention to limit the invention thereto; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not an indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes, and are not to be construed as limiting the present invention, and the specific meaning of the terms may be understood by those skilled in the art according to specific situations.

Example one

As shown in fig. 1-10, the anti-floating and anti-shearing tunnel segment structure for shallow backfill formation comprises a tunnel tube 1 located in a tunnel, wherein the tunnel tube 1 comprises a first segment 2, two second segments 3, two third segments 4 and a fourth segment 5, a plurality of anchor rods 6 are arranged in the first segment 2, the bottom ends of a plurality of anchor rods 6 all penetrate through the first pipe sheet 2, the two ends of the top part of the first pipe sheet 2 are respectively connected with two second pipe sheets 3, two groups of clamping components are arranged in the first pipe sheet 2, the clamping component is used for connecting the first pipe piece 2 and the second pipe piece 3, the top end of the second pipe piece 3 is contacted with the bottom end of the third pipe piece 4, the mutually close ends of the third pipe piece 4 and the second pipe piece 3 are fixedly connected with a rubber block 40 through bolts, when the second segment 3 and the third segment 4 slightly displace, the second segment 3 and the third segment 4 can be prevented from being broken when touching the positions through the rubber blocks 40.

One side of the second pipe piece 3, which is close to the third pipe piece 4, is provided with a deformation joint 41, the deformation resistance of the second pipe piece 3 and the third pipe piece 4 can be increased through the deformation joint 41, the inner wall of one side of the second pipe piece 3 is fixedly connected with a second arc plate 13 through bolts, and one side that the second arc board 13 is close to second section of jurisdiction 3 is laminated with the inner wall of third section of jurisdiction 4 mutually, be equipped with second bolt 14 in the second arc board 13, the one end that second bolt 14 is close to second section of jurisdiction 3 runs through third section of jurisdiction 4 and with 3 threaded connection of second section of jurisdiction, the one end that second section of jurisdiction 3 was kept away from to third section of jurisdiction 4 touches with fourth section of jurisdiction 5 mutually, be equipped with in the third section of jurisdiction 4 and be used for carrying out the coupling assembling of connecting third section of jurisdiction 4 and fourth section of jurisdiction 5, be equipped with the energy dissipation subassembly that is used for subduing dislocation stress in the fourth section of jurisdiction 5, from interior to exterior is equipped with concrete lining layer 30, energy dissipation buffer layer 31 and waterproof layer 32 in proper order in tunnel pipe 1.

In the invention, the clamping component comprises a first arc plate 9 fixedly connected with one side of the top of the first pipe piece 2 through a bolt, one side of the bottom of the first arc plate 9 is attached to the inner wall of the second pipe piece 3, a first bolt 10 is arranged in the first arc plate 9, the bottom end of the first bolt 10 is connected with the second pipe piece 3 by screw thread, one end of the second pipe piece 3 close to the first pipe piece 2 is provided with a first groove 7, one end of the first pipe piece 2 close to the second pipe piece 3 is fixedly connected with a first convex plate 8 by a bolt, and one end of the first convex plate 8 far away from the first pipe sheet 2 extends into the first groove 7 and is in sliding fit with the first groove 7, one end of the second pipe sheet 3 close to the first pipe sheet 2 is fixedly connected with two symmetrical second convex plates 12 through bolts, one end of the first pipe sheet 2 close to the second pipe sheet 3 is provided with two symmetrical second grooves 11, and one end of the second convex plate 12 close to the first pipe piece 2 extends into the second groove 11 and is in sliding fit with the second groove 11.

In the invention, the connecting assembly comprises a first hydraulic channel 15 and a second hydraulic channel 16 which are arranged in a third duct piece 4, the first hydraulic channel 15 is communicated with the second hydraulic channel 16, a first piston 17 is connected in the first hydraulic channel 15 in a sealing and sliding manner, one side of the first piston 17 close to the fourth duct piece 5 is fixedly connected with a connecting plate 18 which extends into the fourth duct piece 5 through a bolt, a second piston 21 is connected in the second hydraulic channel 16 in a sealing and sliding manner, one side of the second piston 21 far away from the third duct piece 4 is fixedly connected with a connecting rod 20 through a bolt, one end of the connecting rod 20 far away from the second piston 21 is fixedly connected with a push plate 19 through a bolt, the push plate 19 and the connecting rod 20 are pushed to slide outwards, hydraulic oil in the second hydraulic channel 16 floods into the first hydraulic channel 15, the hydraulic oil can push the first piston 17 and the connecting plate 18 to slide along the track of the first hydraulic channel 15 and extend into the fourth duct piece 5, and then can be connected fourth section of jurisdiction 5 and two third section of jurisdiction 4, easily promote push pedal 19 and just can be connected third section of jurisdiction 4 and fourth section of jurisdiction 5, and simple and convenient need not too much bolts of use.

In the invention, the energy dissipation assembly comprises a sliding groove 22 arranged at the top of a fourth pipe piece 5, the inner wall of the bottom of the sliding groove 22 is fixedly connected with a plurality of damping springs 23, the top ends of the damping springs 23 are fixedly connected with the same damping plate 24, the bottom of the damping plate 24 is fixedly connected with a sliding rod 25 through a bolt, the bottom end of the sliding rod 25 penetrates through the fourth pipe piece 5 in a sliding manner and is fixedly connected with a trapezoidal block 26 through a bolt, the bottom of the fourth pipe piece 5 is connected with two symmetrical arc sliding plates 27 in a sliding manner, the arc sliding plates 27 are in sliding fit with the trapezoidal block 26, the arc sliding plates 27 are contacted with a push plate 19, the inner wall of one side of the third pipe piece 4 is fixedly connected with a third arc plate 28, the top end of the third arc plate 28 is fixedly connected with a rubber spring 29, the top end of the rubber spring 29 is contacted with the bottom of the arc sliding plate 27, when the arc sliding plates 27 are extruded by the trapezoidal block 26 to slide to two sides, the arc-shaped sliding plate 27 can limit the push plate 19, prevent the push plate 19 and the connecting plate 18 from retracting to cause the third segment 4 and the fourth segment 5 to be disconnected, and can reduce the dislocation stress through the rubber spring 29.

In the invention, the top end of the first arc plate 9 is fixedly connected with the second damping block 39 through a bolt, the top of the second damping block 39 is fixedly connected with the bottom of the second arc plate 13, and the extrusion force of the second arc plate 13 to the first arc plate 9 can be reduced through the second damping block 39.

In the invention, the top of the second arc plate 13 is fixedly connected with a first damping block 38 through a bolt, and the top of the first damping block 38 is fixedly connected with the bottom of the third arc plate 28.

Example two

As a further improvement of the previous embodiment, as shown in fig. 1-12, the present embodiment is an anti-floating and anti-shearing tunnel segment structure for shallow backfill, comprising a tunnel tube 1 located in a tunnel, wherein the tunnel tube 1 comprises a first segment 2, two second segments 3, two third segments 4 and a fourth segment 5, a plurality of anchor rods 6 are arranged in the first segment 2, the bottom ends of the anchor rods 6 all penetrate through the first segment 2, both ends of the top of the first segment 2 are respectively connected with the two second segments 3, two sets of clamping components are arranged in the first segment 2, the clamping components are used for connecting the first segment 2 with the second segment 3, the top end of the second segment 3 is in contact with the bottom end of the third segment 4, one ends of the third segment 4 and the second segment 3, which are close to each other, are fixedly connected with rubber blocks 40 through bolts, when the second segment 3 and the third segment 4 slightly displace, the rubber block 40 can prevent the contact position of the second segment 3 and the third segment 4 from being broken, one side of the second segment 3 and the third segment 4 close to each other is provided with a deformation joint 41, the deformation resistance of the second segment 3 and the third segment 4 can be increased through the deformation joint 41, the inner wall of one side of the second segment 3 is fixedly connected with a second arc plate 13 through bolts, one side of the second arc plate 13 close to the second segment 3 is attached to the inner wall of the third segment 4, a second bolt 14 is arranged in the second arc plate 13, one end of the second bolt 14 close to the second segment 3 penetrates through the third segment 4 and is in threaded connection with the second segment 3, one end of the third segment 4 far away from the second segment 3 is in contact with the fourth segment 5, a connecting component for connecting the third segment 4 and the fourth segment 5 is arranged in the third arc plate 4, an energy dissipation component for reducing dislocation stress is arranged in the fourth segment 5, the tunnel pipe 1 is internally and sequentially provided with a concrete lining layer 30, an energy dissipation and damping layer 31 and a waterproof layer 32 from inside to outside.

In the invention, the clamping component comprises a first arc plate 9 fixedly connected with one side of the top of the first pipe piece 2 through a bolt, one side of the bottom of the first arc plate 9 is attached to the inner wall of the second pipe piece 3, a first bolt 10 is arranged in the first arc plate 9, the bottom end of the first bolt 10 is connected with the second pipe piece 3 by screw thread, one end of the second pipe piece 3 close to the first pipe piece 2 is provided with a first groove 7, one end of the first pipe piece 2 close to the second pipe piece 3 is fixedly connected with a first convex plate 8 by a bolt, and one end of the first convex plate 8 far away from the first pipe sheet 2 extends into the first groove 7 and is in sliding fit with the first groove 7, one end of the second pipe sheet 3 close to the first pipe sheet 2 is fixedly connected with two symmetrical second convex plates 12 through bolts, one end of the first pipe sheet 2 close to the second pipe sheet 3 is provided with two symmetrical second grooves 11, and one end of the second convex plate 12 close to the first pipe piece 2 extends into the second groove 11 and is in sliding fit with the second groove 11.

In the invention, the connecting assembly comprises a first hydraulic channel 15 and a second hydraulic channel 16 which are arranged in a third duct piece 4, the first hydraulic channel 15 is communicated with the second hydraulic channel 16, a first piston 17 is connected in the first hydraulic channel 15 in a sealing and sliding manner, one side of the first piston 17 close to the fourth duct piece 5 is fixedly connected with a connecting plate 18 which extends into the fourth duct piece 5 through a bolt, a second piston 21 is connected in the second hydraulic channel 16 in a sealing and sliding manner, one side of the second piston 21 far away from the third duct piece 4 is fixedly connected with a connecting rod 20 through a bolt, one end of the connecting rod 20 far away from the second piston 21 is fixedly connected with a push plate 19 through a bolt, the push plate 19 and the connecting rod 20 are pushed to slide outwards, hydraulic oil in the second hydraulic channel 16 floods into the first hydraulic channel 15, the hydraulic oil can push the first piston 17 and the connecting plate 18 to slide along the track of the first hydraulic channel 15 and extend into the fourth duct piece 5, and then can be connected fourth section of jurisdiction 5 and two third section of jurisdiction 4, easily promote push pedal 19 and just can be connected third section of jurisdiction 4 and fourth section of jurisdiction 5, and simple and convenient need not too much bolts of use.

In the invention, the energy dissipation assembly comprises a sliding groove 22 arranged at the top of a fourth pipe piece 5, the inner wall of the bottom of the sliding groove 22 is fixedly connected with a plurality of damping springs 23, the top ends of the damping springs 23 are fixedly connected with the same damping plate 24, the bottom of the damping plate 24 is fixedly connected with a sliding rod 25 through a bolt, the bottom end of the sliding rod 25 penetrates through the fourth pipe piece 5 in a sliding manner and is fixedly connected with a trapezoidal block 26 through a bolt, the bottom of the fourth pipe piece 5 is connected with two symmetrical arc sliding plates 27 in a sliding manner, the arc sliding plates 27 are in sliding fit with the trapezoidal block 26, the arc sliding plates 27 are contacted with a push plate 19, the inner wall of one side of the third pipe piece 4 is fixedly connected with a third arc plate 28, the top end of the third arc plate 28 is fixedly connected with a rubber spring 29, the top end of the rubber spring 29 is contacted with the bottom of the arc sliding plate 27, when the arc sliding plates 27 are extruded by the trapezoidal block 26 to slide to two sides, the arc-shaped sliding plate 27 can limit the push plate 19, prevent the push plate 19 and the connecting plate 18 from retracting to cause the third segment 4 and the fourth segment 5 to be disconnected, and can reduce the dislocation stress through the rubber spring 29.

In the invention, the top end of the first arc plate 9 is fixedly connected with the second damping block 39 through a bolt, the top of the second damping block 39 is fixedly connected with the bottom of the second arc plate 13, and the extrusion force of the second arc plate 13 to the first arc plate 9 can be reduced through the second damping block 39.

In the invention, the top of the second arc plate 13 is fixedly connected with a first damping block 38 through a bolt, and the top of the first damping block 38 is fixedly connected with the bottom of the third arc plate 28.

According to the invention, the inner wall of the bottom of the anchor rod 6 is rotatably connected with a screw 33, one side of the anchor rod 6, which is far away from each other, is provided with a plurality of arc-shaped chutes 34, the arc-shaped chutes 34 are slidably connected with arc-shaped plates 37, the anchor rod 6 is slidably connected with a plurality of nut blocks 36, the top threads of the screw 33 penetrate through the nut blocks 36, the bottom of the nut blocks 36 is rotatably connected with a rotating rod 35, the bottom end of the rotating rod 35 is rotatably connected with the top end of the arc-shaped plates 37, the screw 33 is rotated, the screw 33 is in threaded connection with the nut blocks 36, the nut blocks 36 start to slide downwards, and the nut blocks 36 can push the arc-shaped plates 37 to slide outwards along the track of the arc-shaped chutes 34, so that the arc-shaped plates 37 are inserted into a soil layer, and the stability of the first duct piece 2 and the ground is improved.

In the invention, the anchor rod 6 is fixedly connected with the fixing block 42 through the bolt, the top end of the screw 33 is rotatably penetrated through the fixing block 42, and the stability of the screw 33 can be improved through the fixing block 42.

The advantages of the second embodiment over the first embodiment are: the bottom inner wall of stock 6 rotates and is connected with screw rod 33, and one side that stock 6 kept away from each other all is equipped with a plurality of arc spouts 34, and sliding connection has arc 37 in the arc spout 34, and sliding connection has a plurality of nut pieces 36 in the stock 6, and the top screw thread of screw rod 33 runs through nut piece 36, and the bottom of nut piece 36 rotates and is connected with dwang 35, and the bottom of dwang 35 rotates with arc 37's top and is connected.

When this shallow backfill stratum is with anti floating tunnel section of jurisdiction structure that shears uses: first install first section of jurisdiction 2 in the tunnel bottom, run through first section of jurisdiction 2 and insert in the tunnel soil layer through stock 6, be used for tightly fixing first section of jurisdiction 2 in the tunnel bottom, avoid first section of jurisdiction 2 to take place to float the phenomenon, after that through two second sections of jurisdiction 3 of jack centre gripping respectively, make the 3 laminating tunnel inner walls of second section of jurisdiction slide, insert second flange 12 in second recess 11, and the first recess 7 of corresponding the inserting of first flange 8, fix first section of jurisdiction 2 and second section of jurisdiction 3 through first bolt 10 after that, and then can be connected two second sections of jurisdiction 3 with first section of jurisdiction 2.

Then clamping two third pipe pieces 4 by a jack respectively, butting the two third pipe pieces 4 with two second pipe pieces 3 respectively according to the steps, fixing the corresponding second pipe pieces 3 and the third pipe pieces 4 by second bolts 14 respectively, then pushing a fourth pipe piece 5 upwards along a gap between the two third pipe pieces 4, enabling a damping plate 24 to be attached to the inner wall of the top of the tunnel, pushing a pushing plate 19 and a connecting rod 20 to slide outwards, flushing hydraulic oil in a second hydraulic channel 16 into a first hydraulic channel 15, pushing a first piston 17 and a connecting plate 18 to slide along the track of the first hydraulic channel 15 and extend into the fourth pipe piece 5 by the hydraulic oil, further connecting the fourth pipe piece 5 with the two third pipe pieces 4, then installing two arc-shaped sliding plates 27 at the bottom of the fourth pipe piece 5 respectively, and connecting the arc-shaped sliding plates 27 with the bottom of the fourth pipe piece 5 in a sliding manner, can carry on spacingly to push pedal 19 through arc slide 27, prevent that push pedal 19 from to middle slip, connecting plate 18 retracts to first hydraulic pressure way 15 in, leads to third section of jurisdiction 4 can't be fixed fourth section of jurisdiction 5.

Then, the screw 33 is rotated, the screw 33 is in threaded connection with the nut block 36, the nut block 36 starts to slide downwards, the nut block 36 can push the arc-shaped plate 37 to slide outwards along the track of the arc-shaped sliding groove 34, the arc-shaped plate 37 is inserted into a soil layer, the stability of the first duct piece 2 and the ground is improved, when dislocation stress occurs above, the dislocation stress above pushes the damping plate 24 to slide downwards, the damping spring 23 can primarily buffer and reduce the dislocation stress above, when the damping plate 24 pushes the sliding rod 25 and the trapezoid block 26 to move downwards, the trapezoid block 26 can push the two arc-shaped sliding plates 27 to slide towards two sides along the inner wall of the bottom of the fourth duct piece 5, the arc-shaped sliding plates 27 touch the rubber spring 29, and the dislocation stress above can be reduced again through the rubber spring 29.

Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.