阅读说明：本技术 基桩声测管安装结构的施工方法 (Construction method of foundation pile sounding pipe installation structure ) 是由 张琼 邢磊 何武平 陈广杉 朱进 曹守强 王竹林 尹华 项文超 陈劲强 宋俊 于 2019-10-31 设计创作，主要内容包括：本发明涉及基桩声测管安装结构的施工方法,包括以下步骤：1)施工准备；2)声测管预组装；3)声测管与钢筋笼连接；4)声测管裂缝封堵处理；5)声测管端头保护施工。本发明的有益效果是：本发明可借助内置支撑体和外包限位体对声测管的平面位置进行限定,并可借助导向测位板对声测管的轴向位置进行测控,实现对声测管空间位置的多角度控制；本发明在声测管与测管定位环箍之间设置了连接夹板、拉结定位筋和外包定位筋,并可通过定位筋螺栓进行连接紧固,减小了声测管连接施工的难度和连接施工对声测管的损坏；本发明在声测管开裂段设置内撑囊袋,并在内撑囊袋内压注囊袋填充体,可实现声测管管腔的快速封闭填充,防止混凝土进入声测管。(The invention relates to a construction method of a foundation pile sounding pipe installation structure, which comprises the following steps: 1) construction preparation; 2) preassembling the sounding pipe; 3) the acoustic pipe is connected with the reinforcement cage; 4) plugging the crack of the acoustic pipe; 5) and (5) protecting and constructing the end of the acoustic pipe. The invention has the beneficial effects that: the invention can limit the plane position of the sounding pipe by means of the built-in support body and the wrapped limit body, and can measure and control the axial position of the sounding pipe by means of the guide position measuring plate, thereby realizing multi-angle control of the space position of the sounding pipe; according to the invention, the connecting clamp plate, the drawknot positioning rib and the outer positioning rib are arranged between the sounding pipe and the sounding pipe positioning hoop, and can be connected and fastened through the positioning rib bolt, so that the difficulty of sounding pipe connection construction and the damage of the sounding pipe caused by the connection construction are reduced; according to the invention, the inner supporting bag is arranged at the cracking section of the sounding pipe, and the bag filling body is pressed in the inner supporting bag, so that the pipe cavity of the sounding pipe can be quickly sealed and filled, and concrete is prevented from entering the sounding pipe.)

1. The construction method of the foundation pile sounding pipe installation structure is characterized in that: the method comprises the following construction steps:

1) construction preparation: rechecking to determine the layout requirement of the acoustic pipe (1), and preparing construction devices and materials required by the installation construction of the acoustic pipe (1);

2) acoustic pipe preassembling: 2-4 sounding pipes (1) are arranged according to the plane position requirement of the sounding pipes (1), the inner side wall of each sounding pipe (1) is supported in the radial direction through an inner arc supporting plate (3) of a built-in support body (2), and the outer side wall of each sounding pipe (1) is supported in the circumferential direction through an outer arc pressing plate (5) wrapped with a limiting body (4); the directions of the inner arc supporting plate (3) and the sounding pipe (1) are synchronously controlled through the guide position measuring plate (6);

3) the sounding pipe is connected with the steel reinforcement cage: after the sound measurement pipe (1) is positioned, a measurement pipe positioning hoop (7) is arranged on the outer side of the sound measurement pipe (1) along the length direction of the sound measurement pipe (1), and the connection strength of an outer wrapping positioning rib (9) and a tie positioning rib (10) is controlled through a positioning rib bolt (8); after the sounding pipe (1) and the sounding pipe positioning hoop (7) are firmly connected, firstly removing the restraint of the external hoop (31) on the sounding pipe (1), then placing the sounding pipe (1) and the internal support body (2) on the inner side of the longitudinal rib (11) of the steel reinforcement cage, checking the directions of the internal support arc plate (3) and the sounding pipe (1) through the guide position measuring plate (6), and then firmly connecting the sounding pipe positioning hoop (7) with the longitudinal rib (11) of the steel reinforcement cage; a reinforcement cage stirrup (36) is arranged on the outer side of the reinforcement cage longitudinal rib (11);

4) plugging the crack of the sounding pipe: for the sound measurement tube (1) with local cracks, firstly, an inner supporting bag (13) is conveyed to a tube section with the cracks of the sound measurement tube (1) through a bag inner tube (12), and then a bag filling body (14) is injected into the inner supporting bag (13) so that the inner supporting bag (13) drives an elastic transverse supporting rod (15) to expand outwards under the action of the pressure of the bag filling body (14), and the outer side wall of the inner supporting bag (13) is tightly attached to the sound measurement tube (1);

5) and (3) protecting and constructing the end of the acoustic pipe: a closed base plate (17) and a blocking position control rod (18) are arranged on the lower surface of the pipe top cap plate (16), and the upper surface of a first anti-blocking block (19) is connected with the closed base plate (17); a second anti-blocking block (20) is arranged at the bottom end of the blocking position control rod (18), and the position of the second anti-blocking block (20) is limited through an anti-blocking clamping plate (21); the second anti-blocking block (20) and the first anti-blocking block (19) are inserted into the sounding pipe (1) through the blocking position control rod (18); the method comprises the steps that a first closed ring (22) and a second closed ring (23) are sequentially arranged on the outer side wall of a sounding pipe (1) from top to bottom, a protective sleeve (24) is sleeved on the outer sides of the first closed ring (22) and the second closed ring (23), and a pipe periphery fastening hoop (25) is arranged on the outer side of the protective sleeve (24) at the corresponding position of the first closed ring (22) and the second closed ring (23); firstly, the protective liquid (26) is injected into a cavity formed by the surrounding of the sounding pipe (1), the protective sleeve (24), the first closed ring (22) and the second closed ring (23), and then the fastening hoop (25) around the pipe is fastened.

2. The construction method of the foundation pile sounding pipe installation structure according to claim 1, characterized in that: step 2), the built-in support body (2) comprises an axial position control core pipe (27) and an inner supporting arc plate (3), a first inner supporting screw rod (28) is arranged on the outer side of the axial position control core pipe (27) along the annular direction, and a second inner supporting screw rod (29) and a guiding position measuring plate (6) are arranged on the surface, facing the axial position control core pipe (27), of the inner supporting arc plate (3); the screw fastening directions of the first inner support screw rod (28) and the second inner support screw rod (29) are opposite, and the first inner support screw rod and the second inner support screw rod are connected through an inner support adjusting bolt (30); the outer-wrapping limiting body (4) comprises two external hoops (31) with the same shape, an outer pressure arc plate (5) is arranged on the inner side wall of each external hoop (31), hoop ear plates (32) are arranged at two ends of each external hoop (31), and the two connected hoop ear plates (32) are connected through hoop fastening bolts (33); the positions of the inner arc supporting plate (3) and the outer arc pressing plate (5) correspond to the sounding pipe (1), the cross sections of the inner arc supporting plate (3) and the outer arc pressing plate (5) are arc-shaped, and the inner diameter of the arc is the same as the outer diameter of the sounding pipe (1); the plane of the guide position measuring plate (6) is triangular, and the guide position measuring plates (6) on the same axis are the same in size.

3. The construction method of the foundation pile sounding pipe installation structure according to claim 1, characterized in that: step 3), the cross section of the pipe measuring positioning hoop (7) is in a circular ring shape, two sides of the sound measuring pipe (1) connected with the pipe measuring positioning hoop are respectively provided with a connecting splint (34), and the connecting splint (34) is provided with a tie positioning rib (10); the contact section of the outer wrapping positioning rib (9) and the sound measuring tube (1) is in an arc shape; the fastening directions of the connecting threads on the outer wrapping positioning rib (9) and the tie positioning rib (10) are opposite, and the outer wrapping positioning rib (9) and the tie positioning rib (10) are connected with the positioning rib bolt (8) through threads.

4. The construction method of the foundation pile sounding pipe installation structure according to claim 1, characterized in that: step 4), the inner supporting bag (13) is formed by sewing rubber sheets or geomembranes and is cylindrical, a bag inner connecting plate (35), an elastic transverse supporting rod (15) and a rigid transverse supporting rod (37) are sequentially arranged between the inner side of the inner supporting bag and the bag inner tube (12), and a hanging rib body (38) is vertically arranged on the outer side surface of the inner supporting bag (13); two ends of the rigid transverse supporting rod (37) are respectively connected with the bag inner tube (12) and the elastic transverse supporting rod (15) in a welding manner; the cross section of the connecting plate (35) in the bag pocket is arc-shaped, the outer side surface of the connecting plate is connected with the inner supporting bag (13) in a sticking way, and the inner side surface of the connecting plate is connected with the elastic transverse supporting rod (15) in a welding way; the hanging rib bodies (38) are distributed along the height direction of the inner supporting bag (13) in a full-section mode, 2-4 ribs are arranged along the annular direction of the inner supporting bag (13), and rib body transverse hoops (39) are arranged on the outer sides of the hanging rib bodies (38); a reinforcing connecting rib (40) is arranged between the top end of the hanging rib body (38) and the inner tube (12) of the bag; the bag inner tube (12) is a steel tube or an alloy tube, and a grouting communicating tube (41) communicated with the bag inner tube (12) is arranged on the outer side of the bag inner tube; the bag filling body (14) adopts slurry or water.

5. The construction method of the foundation pile sounding pipe installation structure according to claim 1, characterized in that: step 5) the protective liquid (26) is formed by mixing water-soluble pigment and water, and the color of the pigment is red, black or blue; the inner diameters of the first closed ring (22) and the second closed ring (23) are the same as the outer diameter of the sounding pipe (1), the sounding pipe is formed by cutting a rubber plate, and the cross section of the sounding pipe is annular; the first anti-blocking body (19) and the second anti-blocking body (20) are both in a circular truncated cone shape and are formed by cutting wood or plastic plates or foam plates.

Technical Field

The invention relates to a construction method of a foundation pile sounding pipe installation structure, belongs to the field of foundation engineering, and is suitable for cast-in-place pile sounding pipe installation and layout engineering.

Background

In bridge engineering, the bearing performance of a foundation pile is closely related to the concrete pouring quality and integrity of the foundation pile. At present, the quality of a finished cast-in-place pile is generally detected by a sound tube method in engineering. The method is limited by complex construction environment and field operation technology, and the following conditions are easy to occur during construction of the acoustic pipe: the connection between the sounding pipe and the steel reinforcement cage is not firm enough, the sounding pipe which cracks in the manufacturing and transporting processes can not be reused, the pipe is easy to leak and block in the installation process, and the like, and the installation quality and the test result of the sounding pipe are adversely affected.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provide a construction method of a foundation pile acoustic pipe installation structure, which can improve the accuracy of acoustic pipe installation and positioning, realize the reutilization of acoustic pipes with cracks, reduce the influence of pile head chiseling on the acoustic pipes and avoid the acoustic pipes from being blocked.

The construction method of the foundation pile sounding pipe installation structure comprises the following construction steps:

1) construction preparation: rechecking to determine the layout requirement of the sound detection pipe, and preparing a construction device and materials required by the installation construction of the sound detection pipe;

2) acoustic pipe preassembling: 2-4 sounding pipes are arranged according to the plane position requirement of the sounding pipes, the inner side wall of each sounding pipe is supported in the radial direction through an inner arc supporting plate with a built-in supporting body, and the outer side wall of each sounding pipe is supported in the circumferential direction through an outer arc pressing plate with a limiting body; synchronously controlling the directions of the inner arc supporting plate and the sounding pipe through the guiding and positioning plate;

3) the sounding pipe is connected with the steel reinforcement cage: after the sound measuring pipe is positioned, firstly, a sound measuring pipe positioning hoop is arranged on the outer side of the sound measuring pipe along the length direction of the sound measuring pipe, and the connection strength of the outer wrapping positioning rib and the drawknot positioning rib is controlled through a positioning rib bolt; after the sounding pipe and the sounding pipe positioning hoop are firmly connected, the restraint of the external hoop on the sounding pipe is firstly released, then the sounding pipe and the internal support body are arranged on the inner side of the longitudinal bar of the reinforcement cage together, the directions of the internal arc supporting plate and the sounding pipe are checked through the guiding and positioning plate, and then the sounding pipe positioning hoop and the longitudinal bar of the reinforcement cage are firmly connected; arranging reinforcement cage stirrups outside the reinforcement cage longitudinal bars;

4) plugging the crack of the sounding pipe: for the sound measuring tube with local cracks, the inner supporting bag is firstly conveyed to the tube section with the cracks of the sound measuring tube through the bag inner tube, and then the bag filling body is pressed and injected into the inner supporting bag, so that the inner supporting bag drives the elastic transverse supporting rod to expand outwards under the action of the pressure of the bag filling body, and the outer side wall of the inner supporting bag is tightly attached to the sound measuring tube;

5) and (3) protecting and constructing the end of the acoustic pipe: arranging a closed base plate and a blocking position control rod on the lower surface of the pipe top cap plate, and connecting the upper surface of the first anti-blocking plate with the closed base plate; the bottom end of the blocking position control rod is provided with a second anti-blocking block, and the position of the second anti-blocking block is limited by the anti-blocking clamping plate; inserting the second anti-clogging and the first anti-clogging into the acoustic pipe through the clogging position control rod; the method comprises the following steps that a first closed ring and a second closed ring are sequentially arranged on the outer side wall of a sounding pipe from top to bottom, then a protective casing is sleeved on the outer sides of the first closed ring and the second closed ring, and a pipe periphery fastening hoop is arranged on the outer side of the protective casing at the corresponding position of the first closed ring and the second closed ring; firstly, injecting protective liquid into a cavity formed by enclosing the sounding pipe, the protective sleeve, the first closed ring and the second closed ring, and then fastening the fastening hoop around the sounding pipe.

Preferably, the method comprises the following steps: step 2) the built-in support body comprises an axial position control core pipe and an inner supporting arc plate, a first inner supporting screw rod is arranged on the outer side of the axial position control core pipe along the circumferential direction, and a second inner supporting screw rod and a guide position measuring plate are arranged on the inner supporting arc plate facing to the axial position control core pipe; the screw fastening directions of the first inner support screw rod and the second inner support screw rod are opposite, and the first inner support screw rod and the second inner support screw rod are connected through an inner support adjusting bolt; the outer-wrapping limiting body comprises two external hoops with the same shape, an outer pressure arc plate is arranged on the inner side wall of each external hoop, hoop ear plates are arranged at two ends of each external hoop, and the two connected hoop ear plates are connected through hoop fastening bolts; the inner arc supporting plate and the outer arc pressing plate correspond to the sounding pipe in position, the cross sections of the inner arc supporting plate and the outer arc pressing plate are arc-shaped, and the inner diameter of the arc is the same as the outer diameter of the sounding pipe; the plane of the guide position measuring plate is triangular, and the guide position measuring plates on the same axis have the same size.

Preferably, the method comprises the following steps: step 3) the cross section of the positioning hoop of the measuring tube is in a ring shape, two sides of the sound measuring tube connected with the positioning hoop are respectively provided with a connecting splint, and the connecting splint is provided with a drawknot positioning rib; the contact section of the outer wrapping positioning rib and the sound measuring tube is in an arc shape; the fastening directions of the connecting threads on the outer package positioning rib and the tie positioning rib are opposite, and the outer package positioning rib and the tie positioning rib are in threaded connection with the positioning rib bolt.

Preferably, the method comprises the following steps: step 4) the inner supporting bag is formed by sewing rubber sheets or geomembranes and is cylindrical, a bag inner connecting plate, an elastic transverse supporting rod and a rigid transverse supporting rod are sequentially arranged between the inner side of the inner supporting bag and the inner tube of the bag, and a hanging rib body is vertically arranged on the outer side surface of the inner supporting bag; two ends of the rigid transverse supporting rod are respectively connected with the bag inner tube and the elastic transverse supporting rod in a welding manner; the cross section of the connecting plate in the bag pocket is arc-shaped, the outer side surface of the connecting plate is connected with the inner supporting bag in a sticking way, and the inner side surface of the connecting plate is connected with the elastic transverse supporting rod in a welding way; the hanging rib bodies are distributed along the height direction of the inner supporting bag in a full-section manner, the hanging rib bodies are annularly arranged along the inner supporting bag, and rib body transverse hoops are arranged on the outer sides of the hanging rib bodies; a reinforcing connecting rib is arranged between the top end of the hanging rib body and the inner tube of the bag; the bag inner pipe is a steel pipe or an alloy pipe, and a grouting communicating pipe communicated with the bag inner pipe is arranged on the outer side of the bag inner pipe; the bag filling body adopts slurry or water.

Preferably, the method comprises the following steps: step 5) the protective liquid is formed by mixing water and pigment which is easy to dissolve in water, and the color of the pigment is red, black or blue; the inner diameters of the first closed ring and the second closed ring are the same as the outer diameter of the sounding pipe, and the first closed ring and the second closed ring are formed by cutting a rubber plate, and the cross section of the first closed ring and the second closed ring is annular; the first anti-blocking body and the second anti-blocking body are both in a round table shape and are formed by cutting wood or plastic plates or foam plates.

The invention has the beneficial effects that:

(1) the invention can limit the plane position of the sounding pipe by means of the built-in support body and the wrapped limiting body, and can measure and control the axial position of the sounding pipe by means of the guide position measuring plate, thereby realizing multi-angle control of the spatial position of the sounding pipe.

(2) According to the invention, the connecting clamp plate, the drawknot positioning rib and the outer positioning rib are arranged between the sounding pipe and the sounding pipe positioning hoop, and can be connected and fastened through the positioning rib bolt, so that the difficulty of sounding pipe connection construction and the damage of the sounding pipe caused by the connection construction are reduced.

(3) According to the invention, the inner supporting bag is arranged at the cracking section of the sounding pipe, and the filling body of the injection bag is pressed in the inner supporting bag, so that the pipe cavity of the sounding pipe can be quickly sealed and filled, concrete is prevented from entering the sounding pipe, and the risk of pipe blockage is reduced.

(4) The top end of the sounding pipe is provided with the pipe top cap plate, the first anti-blocking plate and the second anti-blocking plate, and the positions of the first anti-blocking plate and the second anti-blocking plate can be controlled through the blocking position control rod, so that sundries can be prevented from entering the sounding pipe; meanwhile, the protective sleeve is arranged on the outer side of the sounding pipe, and protective liquid is injected between the protective sleeve and the sounding pipe in a pressing mode, so that the influence of pile head chiseling on the sounding pipe can be reduced by means of the protective liquid, and the construction process of pile head chiseling can be adjusted according to the flowing condition of the protective liquid.

Drawings

FIG. 1 is a flow chart of the construction process of installing the acoustic pipe of the foundation pile of the present invention;

FIG. 2 is a schematic diagram of a lateral limiting structure of the sounding pipe;

FIG. 3 is a schematic view of the connection structure of the sounding pipe and the reinforcement cage;

FIG. 4 is a schematic view of the connection structure of the sound-measuring tube and the inner supporting bag at the crack section;

FIG. 5 is a schematic view of the connection structure of the inner expanding sac and the inner tube of the sac;

fig. 6 is a schematic view of a sounding pipe tip protector.

Description of reference numerals: 1-sounding pipe; 2-built-in support body; 3-inner arc supporting plate; 4-wrapping a limiting body outside; 5-external pressure arc plate; 6-guiding position measuring plate; 7-measuring the pipe positioning hoop; 8-positioning the rib bolt; 9-wrapping positioning ribs outside; 10-tying a positioning rib; 11-longitudinal reinforcement of the reinforcement cage; 12-a capsular bag inner tube; 13-internal supporting capsular bag; 14-capsular bag obturator; 15-elastic transverse supporting rods; 16-pipe top cap plate; 17-sealing the base plate; 18-blocking the position control rod; 19-first anti-clogging; 20-second anti-clogging; 21-anti-blocking clamping plate; 22-a first containment ring; 23-a second containment ring; 24-protective sleeves; 25-a pipe circumference fastening hoop; 26-a protective liquid; 27-axial position control core pipe; 28-a first internal bracing screw; 29-a second internal bracing screw; 30-inner support adjusting bolt; 31-external hoop; 32-hoop ear plates; 33-a hoop fastening bolt; 34-connecting clamp plate; 35-a pouch inner tie plate; 36-a reinforcement cage stirrup; 37-rigid cross braces; 38-hanging ribs; 39-rib body transverse hoop; 40-reinforcing connecting ribs; 41-grouting communicating pipe.

Detailed Description

The present invention will be further described with reference to the following examples. The following examples are set forth merely to aid in the understanding of the invention. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Referring to fig. 1, the construction method of the foundation pile sounding pipe installation structure includes the following construction steps:

1) construction preparation: rechecking to determine the layout requirement of the acoustic pipe 1, and preparing construction devices and materials required by the installation construction of the acoustic pipe 1;

2) acoustic pipe preassembling: 2-4 sounding pipes 1 are arranged according to the plane position requirement of the sounding pipe 1, the inner side wall of the sounding pipe 1 is supported in the radial direction through an inner arc supporting plate 3 internally provided with a support body 2, and the outer side wall of the sounding pipe 1 is supported in the circumferential direction through an outer arc pressing plate 5 externally coated with a limiting body 4; the directions of the inner arc supporting plate 3 and the sounding pipe 1 are synchronously controlled through the guiding position measuring plate 6;

3) the sounding pipe is connected with the steel reinforcement cage: after the sound measurement pipe 1 is positioned, a sound measurement pipe positioning hoop 7 is arranged on the outer side of the sound measurement pipe 1 along the length direction of the sound measurement pipe 1, and the connection strength of an outer wrapping positioning rib 9 and a binding positioning rib 10 is controlled through a positioning rib bolt 8; after the sounding pipe 1 and the sounding pipe positioning hoop 7 are firmly connected, firstly removing the restraint of the external hoop 31 on the sounding pipe 1, then placing the sounding pipe 1 and the internal support body 2 on the inner side of the longitudinal bar 11 of the reinforcement cage, checking the directions of the internal support arc plate 3 and the sounding pipe 1 through the guide position-measuring plate 6, and then firmly connecting the sounding pipe positioning hoop 7 with the longitudinal bar 11 of the reinforcement cage; a reinforcement cage stirrup 36 is arranged on the outer side of the reinforcement cage longitudinal reinforcement 11;

4) plugging the crack of the sounding pipe: for the sound measurement tube 1 with local cracks, firstly, the internal supporting bag 13 is sent to the tube section with the cracks of the sound measurement tube 1 through the bag inner tube 12, and then the bag filling body 14 is injected into the internal supporting bag 13, so that the elastic transverse supporting rod 15 is driven by the internal supporting bag 13 to expand outwards under the action of the pressure of the bag filling body 14, and the outer side wall of the internal supporting bag 13 is tightly attached to the sound measurement tube 1;

5) and (3) protecting and constructing the end of the acoustic pipe: a closed base plate 17 and a blockage position control rod 18 are arranged on the lower surface of the pipe top cap plate 16, and the upper surface of a first blockage prevention block 19 is connected with the closed base plate 17; a second anti-clogging block 20 is arranged at the bottom end of the clogging position control rod 18, and the position of the second anti-clogging block 20 is limited by an anti-clogging clamping plate 21; inserting a second anti-clogging body 20 and a first anti-clogging body 19 into the sounding pipe 1 through the clogging position control rod 18; the method comprises the steps that a first closed ring 22 and a second closed ring 23 are sequentially arranged on the outer side wall of a sounding pipe 1 from top to bottom, a protective sleeve 24 is sleeved on the outer sides of the first closed ring 22 and the second closed ring 23, and a pipe periphery fastening hoop 25 is arranged on the outer side of the protective sleeve 24 at the corresponding position of the first closed ring 22 and the second closed ring 23; firstly, the protective liquid 26 is injected into a cavity formed by the acoustic measurement tube 1, the protective sleeve 24, the first closed ring 22 and the second closed ring 23, and then the fastening hoop 25 around the tube is fastened.

Referring to fig. 2 to 6, in the foundation pile sounding pipe installation structure, the plane position of the sounding pipe 1 is limited by the aid of the built-in support body 2 and the outer-coated limiting body 4, and the axial position of the sounding pipe 1 is measured and controlled by the aid of the guide position measuring plate 6; a connecting clamp plate 34, a drawknot positioning rib 10 and an outer wrapping positioning rib 9 are arranged between the acoustic measurement pipe 1 and the measurement pipe positioning hoop 7 and can be connected and fastened through a positioning rib bolt 8; arranging an inner supporting bag 13 at the cracking section of the sound measuring tube 1, and injecting a bag filling body 14 in the inner supporting bag 13; the top end of the sounding pipe 1 is provided with a pipe top cap plate 16, a first anti-blocking block 19 and a second anti-blocking block 20, and the positions of the first anti-blocking block 19 and the second anti-blocking block 20 can be controlled through a blocking position control rod 18; a protective sleeve 24 is arranged on the outside of the sound tube 1 and a liquid 26 is protected between the protective sleeve 24 and the sound tube 1.

The sound measuring tube 1 is a steel corrugated tube with the inner diameter of 60mm and the wall thickness of 1.2 mm.

The built-in support body 2 comprises an axial position control core pipe 27 and an inner arc supporting plate 3, wherein the axial position control core pipe 27 is made of a steel pipe with the diameter of 10mm, and the inner arc supporting plate 3 is made of a steel plate with the thickness of 1mm through rolling; a first inner supporting screw 28 is arranged on the outer side of the axial position control core pipe 27 along the annular direction, and a second inner supporting screw 29 and a guide position measuring plate 6 are arranged on the inner supporting arc plate 3 facing the axial position control core pipe 27; the diameters of the first inner supporting screw 28 and the second inner supporting screw 29 are both 6mm, and the fastening directions of screws are opposite; the inner diameter of the inner support adjusting bolt 30 is 6 mm.

The outsourcing spacing body 4 includes two external hoops 31 that the shape is the same to set up outer pressure arc plate 5 on the inside wall of external hoop 31, both ends set up hoop otic placode 32, all adopt thickness to form for 1 mm's steel sheet is rolling. The two connected hoop ear plates 32 are fastened by a hoop fastening bolt 33, and the hoop fastening bolt 33 adopts a hexagonal stainless steel bolt with the diameter of 10 mm; the positions of the inner arc supporting plate 3 and the outer arc pressing plate 5 correspond to the sounding pipe 1, the central angle is 45 degrees, and the inner diameter is the same as the outer diameter of the sounding pipe 1.

The plane of the guiding position-measuring plate 6 is triangular, the height of the triangle is 20mm, the guiding position-measuring plate is formed by rolling a steel plate with the thickness of 2mm, and the sizes of the guiding position-measuring plates 6 on the same axis are the same.

The pipe measuring positioning hoop 7 is formed by rolling a steel plate with the thickness of 2 mm.

The outsourcing positioning rib 9 and the drawknot positioning rib 10 are both formed by rolling smooth steel bars with the diameter of 8mm, and the positioning rib bolt 8 is matched with the outsourcing positioning rib 9.

The longitudinal reinforcement 11 of the reinforcement cage adopts a thread reinforcement with the diameter of 25 mm.

The inner bag tube 12 is made of a steel tube with a diameter of 10mm and a wall thickness of 1 mm.

The inner supporting bag 13 is formed by sewing rubber sheets with the thickness of 1mm, and the outer diameter of the inner supporting bag is 60 mm.

Tap water is used as the pouch filler 14.

The elastic transverse supporting rod 15 adopts a stainless steel spring with the diameter of 10 mm.

The rigid transverse supporting rod 37 adopts smooth steel bars with the diameter of 6 mm.

The pipe top cap plate 16 is formed by rolling a steel plate with the thickness of 1mm, and the diameter of the steel plate is 100 mm.

The sealed backing plate 17 is a polyethylene backing plate.

The blocking position control rod 18 adopts a screw rod with the diameter of 10 mm.

The first anti-blocking 19 and the second anti-blocking 20 are both formed by cutting a rubber plate with the thickness of 2cm, are in a circular truncated cone shape, and have the bottom diameter of 60mm and the top diameter of 40 mm.

The jam-proof clamping plate 21 is provided with a hexagonal nut having an inner diameter of 10mm at each of the upper and lower portions of the second jam-proof 20.

The first and second airtight rings 22 and 23 are made of rubber plates with a thickness of 10 mm.

The protective sleeve 24 is a rubber tube with an inner diameter of 75mm and a wall thickness of 2 mm.

The pipe circumference fastening hoop 25 adopts a throat hoop with the adjusting range of 80-89 mm.

The protective liquid 26 is a liquid in which a red pigment is mixed with tap water.

The connecting clamping plate 34 is made of a steel plate with the thickness of 1mm and is welded with the measuring pipe positioning hoop 7.

The bag inner connecting plate 35 is made of a steel plate with the thickness of 0.2 mm.

The reinforcement cage stirrup 36 is a threaded reinforcement with a diameter of 12 mm.

The hanging rib body 38 is made of a steel plate with the thickness of 1mm and the width of 6 mm.

The rib body transverse hoop 39 adopts a throat hoop with the specification of 55-60 mm.

The reinforcing connecting rib 40 is a smooth steel bar with the diameter of 6 mm.

The grouting communicating pipe 41 is a steel pipe with a diameter of 6mm and is communicated with the bag inner pipe 12.