阅读说明：本技术 一种砂土边坡锚杆加固结构及其施工方法 (Sandy soil slope anchor rod reinforcing structure and construction method thereof ) 是由 向祥林 熊卓亚 冯春杰 丁辉 骆棋平 于 2020-03-27 设计创作，主要内容包括：本发明涉及一种砂土边坡锚杆加固结构,包括管状的杆体以及布设在杆体上的出浆孔,杆体为一端开口,另一端呈封闭的尖锐端的管件；杆体上还设置有搅拌机构,搅拌机构包括顶轴和活动连接在杆体内的驱动件；顶轴有多个并且滑动连接在杆体侧壁上,顶轴一端位于杆体内,另一端位于杆体外,顶轴滑动后其两端与杆体侧壁保持平齐或低于侧壁平面,顶轴的两端均设置有限位件,顶轴位于杆体内的一端始终与杆体轴线保持间距；驱动件为一端呈尖锐设置的杆件,驱动件的外径与杆体的内径一致；杆体开口的一端设置有旋转连接器,旋转连接器可拆卸的连接有注浆管道。本发明具有能够快速有效的在砂土边坡上进行锚杆施工的效果。(The invention relates to a sandy soil slope anchor rod reinforcing structure which comprises a tubular rod body and slurry outlet holes distributed on the rod body, wherein the rod body is a pipe fitting, one end of the pipe fitting is opened, and the other end of the pipe fitting is a closed sharp end; the rod body is also provided with a stirring mechanism, and the stirring mechanism comprises a top shaft and a driving piece movably connected in the rod body; the multiple top shafts are connected to the side wall of the rod body in a sliding mode, one end of each top shaft is located in the rod body, the other end of each top shaft is located outside the rod body, the two ends of each top shaft are flush with the side wall of the rod body or lower than the plane of the side wall after sliding, limiting parts are arranged at the two ends of each top shaft, and the end, located in the rod body, of each top shaft always keeps a distance from the axis of the rod body; the driving piece is a rod piece with one sharp end, and the outer diameter of the driving piece is consistent with the inner diameter of the rod body; the open-ended one end of the body of rod is provided with rotary connector, and rotary connector detachable is connected with the slip casting pipeline. The invention has the effect of quickly and effectively carrying out anchor rod construction on the sandy soil slope.)

1. The utility model provides a sand side slope stock reinforced structure, characterized by: the mortar filling device comprises a tubular rod body (1) and mortar outlet holes (2) distributed on the rod body (1), wherein one end of the rod body (1) is open, and the other end of the rod body is a closed sharp-end pipe fitting;

the stirring mechanism (3) is further arranged on the rod body (1), and the stirring mechanism (3) comprises a top shaft (4) and a driving part (5) movably connected in the rod body (1);

the multiple jacking shafts (4) are connected to the side wall of the rod body (1) in a sliding mode, one end of each jacking shaft (4) is located in the rod body (1), the other end of each jacking shaft is located outside the rod body (1), two ends of each jacking shaft (4) are flush with the side wall of the rod body (1) or lower than the plane of the side wall of the rod body (1) after sliding, limiting parts are arranged at two ends of each jacking shaft (4), and one end, located in the rod body (1), of each jacking shaft (4) keeps a distance with the axis of the rod body (1) all the time;

the driving piece (5) is a rod piece with one sharp end, and the outer diameter of the driving piece (5) is consistent with the inner diameter of the rod body (1);

the grouting rod is characterized in that one end of the rod body (1) with an opening is provided with a rotary connector (12), and the rotary connector (12) is detachably connected with a grouting pipeline.

2. The sandy soil slope anchor rod reinforcing structure as claimed in claim 1, wherein: the utility model discloses a pole body (1) is characterized in that the body of rod (1) surface sets up the spiral along its axis direction and is provided with spiral leaf (10), and when tip shaft (4) were located the one end of the body of rod (1) and body of rod (1) inner wall parallel and level or were stuck in the body of rod (1) inner wall, tip shaft (4) were located the outer one end of the body of rod (1) and compare in spiral leaf (10) more outstanding surface in the body of rod (1).

3. The sandy soil slope anchor rod reinforcing structure as claimed in claim 1, wherein: the inner wall of the rod body (1) is provided with an inner flat groove (6), the outer wall of the rod body (1) is provided with an outer flat groove (7) corresponding to the inner flat groove (6), the top shaft (4) penetrates through the side wall of the rod body (1) in the inner flat groove (6) and the outer flat groove (7), the limiting part comprises an inner limiting ring (8) arranged on the circumferential surface of one end, located in the rod body (1), of the top shaft (4) and an outer limiting ring (9) arranged on the circumferential surface of the other end of the top shaft (4), an inner annular groove (21) is formed in the inner wall of the inner flat groove (6), and an outer annular groove (22) is formed in the inner wall of the outer flat groove (7).

4. The sandy soil slope anchor rod reinforcing structure as claimed in claim 3, wherein: a sealing groove (19) is formed in the outer surface of the rod body (1) in the axial direction of the rod body, a sealing strip (20) is arranged in the sealing groove (19), and the slurry outlet hole (2) is formed in the sealing groove (19).

5. The sandy soil slope anchor rod reinforcing structure as claimed in claim 4, wherein: the sealing groove (19) is a dovetail groove or a T-shaped groove, and the sealing strip (20) is in a shape corresponding to the sealing groove (19).

6. The sandy soil slope anchor rod reinforcing structure as claimed in claim 1, wherein: and a handle rod (11) arranged along the radial direction of the rod body is fixed at one open end of the rod body (1).

7. The sandy soil slope anchor rod reinforcing structure as claimed in claim 1, wherein: rotating connector (12) including coaxial coupling's endotheca (13) and overcoat (14), the one end of overcoat (14) cup joints including the one end of endotheca (13) and the two rotates and is connected, and the one end of rotating connector (12) is fixed on the inner wall of the open-ended one end of the body of rod (1) to with body of rod (1) coaxial coupling, the other end can be dismantled with the slip casting pipeline and be connected.

8. The construction method of the sandy slope anchor rod reinforcing structure as claimed in any one of claims 1 to 7, wherein: the method comprises the following construction steps:

the method comprises the following steps: preparing a rod body (1), plugging a sealing strip (20) into a sealing groove (19), and clamping an outer limiting ring (9) into an outer annular groove (22);

step two: inserting the sharp end of the rod body (1) into the side slope, and then screwing the rod body (1) into the side slope by using equipment or a handheld handle rod (11);

step three: inserting the sharp end of the driving piece (5) into the rod body (1), so that the top shaft (4) is driven to eject and insert into a soil layer outside the rod body (1);

step four: drawing out the driving piece (5) from the rod body (1);

step five: then the rotary connector (12) is used for connecting with a grouting pipeline;

step six: injecting mortar into the rod body (1), and rotating the rod body (1) in the process of injecting the mortar, so that a mixture of the mortar and the sandy soil is filled outside the rod body (1);

step seven: and completing the construction of the anchor rod after the mortar and sand mixture is solidified.

Technical Field

The invention relates to the technical field of slope reinforcement structures and construction, in particular to a sandy soil slope anchor rod reinforcement structure and a construction method thereof.

Background

The anchor rod is often used in the slope reinforcement, and general anchor rod work progress as follows:

determining a hole position → drilling in place → adjusting an angle → drilling → cleaning a hole → installing an anchor cable → primary grouting → secondary grouting → constructing an anchor cable waist beam → tensioning → locking an anchor head → cutting off redundant steel strand of the anchor head to protect the anchor head.

But in the drilling process of sand slope stock construction, because sandy soil intensity is lower, so cause the problem that the pore-forming collapses very easily behind the drilling, and then lead to the stock can't insert.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a sandy soil slope anchor rod reinforcing structure and a construction method thereof, and the sandy soil slope anchor rod reinforcing structure has the advantage that anchor rod construction can be rapidly and effectively carried out on a sandy soil slope.

The first technical purpose of the invention is realized by the following technical scheme: a sandy soil slope anchor rod reinforcing structure comprises a tubular rod body and slurry outlet holes distributed on the rod body, wherein one end of the rod body is an open pipe fitting, and the other end of the rod body is a closed sharp end pipe fitting;

the rod body is also provided with a stirring mechanism, and the stirring mechanism comprises a top shaft and a driving part movably connected in the rod body;

the multiple jacking shafts are connected to the side wall of the rod body in a sliding mode, one end of each jacking shaft is located in the rod body, the other end of each jacking shaft is located outside the rod body, the two ends of each jacking shaft are flush with the side wall of the rod body or lower than the plane of the side wall after sliding, limiting parts are arranged at the two ends of each jacking shaft, and a distance is always kept between one end of each jacking shaft located in the rod body and the axis of the rod body;

the driving part is a rod piece with one sharp end, and the outer diameter of the driving part is consistent with the inner diameter of the rod body;

the body of rod open-ended one end is provided with rotary connector, rotary connector detachable is connected with the slip casting pipeline.

Through adopting above-mentioned technical scheme, insert the body of rod to the sandy soil side slope in, then insert the driving piece to the body of rod in, because the one end of driving piece is sharp-pointed to the apical axis is located and has certain distance between the internal one end of body and the body of rod axis, so when the sharp-pointed one end of driving piece along the internal in-process of the body of rod axis insert rod, the apical axis receives the promotion of driving piece and is pushed out the body of rod, and insert to the side slope soil layer.

Connect the slip casting pipeline through rotary connector, then pour into mortar into to the internal mortar of pole, the mortar is followed out the thick liquid hole output, rotates the body of rod simultaneously at the in-process that the mortar was exported from out the thick liquid hole to make the external mortar of pole and sand and soil by the jackshaft mixing stirring. After the mortar and sand mixture is solidified, the rod body is firmly fixed on the side slope. Because the drilling and the grouting are synchronously carried out in the process of construction by using the method, the problem of hole collapse in the drilling process can be solved.

The present invention in a preferred example may be further configured to: the body of rod surface sets up the spiral along its axis direction and is provided with the spiral leaf, and when the apical axis was located the internal one end of pole and body of rod inner wall parallel and level or was stuck in the body of rod inner wall, the apical axis was located the external one end of pole and compares in the surface of the body of rod more outstanding in the spiral leaf.

Through adopting above-mentioned technical scheme, at the in-process that the body of rod inserted the side slope, because there is helical blade's existence to make the body of rod can be by in easier screw in to the side slope, and because the apical axis is located the one end in the body of rod and body of rod inner wall parallel and level or when falling into the body of rod inner wall, the apical axis is located the outer one end of body of rod and compares in the surface of the body of rod more outstanding in the spiral leaf, so when the apical axis inserts the body of rod rotation in the soil layer outside the body of rod, the body of rod can not rotate because of the existence of spiral leaf and. And the sand and the mortar are mixed and stirred together due to the existence of the top shaft.

The present invention in a preferred example may be further configured to: the inner wall of the rod body is provided with an inner flat groove, the outer wall of the rod body is provided with an outer flat groove corresponding to the inner flat groove, the top shaft penetrates through the side wall of the rod body in the inner flat groove and the outer flat groove, the limiting part comprises an inner limiting ring and an outer limiting ring, the inner limiting ring is arranged on the circumferential surface of one end, located in the rod body, of the top shaft, the outer limiting ring is arranged on the circumferential surface of the other end of the top shaft, an inner annular groove is formed in the inner wall of the inner flat groove, and an outer annular groove is formed in the inner wall of the outer flat groove.

Through adopting above-mentioned technical scheme, at the in-process that the body of rod inserted the side slope, outer spacing ring card is gone into in outer ring channel for the apical axis is located the outer one end of the external and the surface of the body of rod and keeps the parallel and level, makes the body of rod can be comparatively easy insert to the side slope in. After the driving piece is inserted into the rod body, the top shaft is pushed to the outside of the rod body, and the inner limiting ring is clamped into the inner annular groove at the moment, so that the top shaft always keeps a state of extending out of the rod body, and further the top shaft is difficult to retract into the rod body in the rotating process.

The present invention in a preferred example may be further configured to: the outer surface of the rod body is provided with a sealing groove along the axial direction of the rod body, a sealing strip is arranged in the sealing groove, and the slurry outlet hole is formed in the sealing groove.

Through adopting above-mentioned technical scheme, at the in-process of slip casting, take out the sealing strip gradually from the seal groove along the axial direction of the body of rod for the grout outlet that is close to the sharp-pointed one end of the body of rod opens earlier. When only the grout outlet close to the sharp end of the rod body is opened, mortar can only flow out of the rod body from the grout outlet at the position to be mixed with sandy soil. When the sealing strip is pulled out of the sealing groove, mortar flows out of the newly opened mortar outlet, and the mortar outlet which is opened before flows out is less in relative mortar outlet because the mortar flows out. Finally, the mortar can be uniformly mixed with the sand around the rod body.

The present invention in a preferred example may be further configured to: the sealing groove is a dovetail groove or a T-shaped groove, and the sealing strip is in a shape corresponding to the sealing groove.

Through adopting above-mentioned technical scheme to make the sealing strip only can follow the length direction pull out of seal groove, let the sealing strip be more inseparable with being connected of seal groove.

The present invention in a preferred example may be further configured to: and a handle rod arranged along the radial direction of the rod body is fixed at one end of the opening of the rod body.

Through adopting above-mentioned technical scheme, the manual work that the handle can be convenient rotates the body of rod to make this stock under the circumstances that does not have its rotation of mechanical equipment drive, still can be through the manual work with it in the rotation screw in side slope.

The present invention in a preferred example may be further configured to: the rotary connector comprises an inner sleeve and an outer sleeve which are coaxially connected, one end of the outer sleeve is sleeved with one end of the inner sleeve, the inner sleeve and the outer sleeve are rotatably connected, one end of the rotary connector is fixed on the inner wall of one end of the rod body, the inner wall of the rod body is provided with an opening, the other end of the rotary connector is coaxially connected with the rod body, and the other end of the rotary connector is detachably connected with the grouting.

Through adopting above-mentioned technical scheme, because endotheca and overcoat are coaxial and rotate to be connected to when making to utilize rotary connector to connect slip casting pipeline and body of rod, the body of rod still can rotate relative slip casting pipeline.

The first technical purpose of the invention is realized by the following technical scheme: a construction method of a sandy soil slope anchor rod reinforcing structure comprises the following construction steps:

the method comprises the following steps: preparing a rod body, plugging a sealing strip into the sealing groove, and clamping the outer limiting ring into the outer annular groove;

step two: inserting the sharp end of the rod body into the side slope, and then screwing the rod body into the side slope by using equipment or a handheld handle rod;

step three: inserting the sharp end of the driving piece into the rod body, so that the top shaft is driven to eject and insert into a soil layer outside the rod body;

step four: drawing out the driving part from the rod body;

step five: then the rotary connector is connected with a grouting pipeline;

step six: injecting mortar into the rod body, and rotating the rod body in the process of injecting the mortar so that the outer shape of the rod body is filled with a mixture of the mortar and the sandy soil;

step seven: and completing the construction of the anchor rod after the mortar and sand mixture is solidified.

By adopting the technical scheme, the mortar is injected into the rod body, the mortar is output from the mortar outlet hole and mixed with the sandy soil to form a mixture of the sandy soil and the mortar, and the mixture of the sandy soil and the mortar is equivalent to the mortar injected into the drill hole in the traditional anchor rod construction process. Because the drilling and the grouting are synchronously carried out in the process of construction by using the method, the problem of hole collapse in the drilling process can be solved.

1. In the process of construction by using the method, drilling and grouting are synchronously carried out, so that the problem of hole collapse in the drilling process can be solved;

2. in the process that the rod body is inserted into the side slope, the rod body can be screwed into the side slope more easily due to the existence of the helical blade, and when one end of the top shaft, which is positioned in the rod body, is flush with the inner wall of the rod body or falls into the inner wall of the rod body, one end of the top shaft, which is positioned outside the rod body, is more protruded out of the outer surface of the rod body than the helical blade, so that when the rod body rotates after the top shaft is inserted into a soil layer outside the rod body, the rod body cannot rotate to retreat out of the side slope due to the existence of the helical blade, and sand and mortar can be mixed and stirred together due to the existence;

3. in the grouting process, the sealing strip is gradually drawn out from the sealing groove along the axial direction of the rod body, so that the grout outlet close to the sharp end of the rod body is opened first. When only the grout outlet close to the sharp end of the rod body is opened, mortar can only flow out of the rod body from the grout outlet at the position to be mixed with sandy soil. When the sealing strip is pulled out of the sealing groove, mortar flows out of the newly opened mortar outlet, and the mortar outlet which is opened before flows out is less in relative mortar outlet because the mortar flows out. Finally, the mortar can be uniformly mixed with the sand around the rod body.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic end-view structure of a rod body according to the present invention;

FIG. 3 is a schematic cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is a schematic cross-sectional view taken along line B-B of FIG. 2;

fig. 5 is a schematic structural view of the rotary connector of the present invention.

Reference numerals: 1. a rod body; 2. a slurry outlet; 3. a stirring mechanism; 4. a top shaft; 5. a drive member; 6. an inner flat groove; 7. an outer leveling groove; 8. an inner limiting ring; 9. an outer limit ring; 10. helical leaves; 11. a handle bar; 12. a rotary connector; 13. an inner sleeve; 14. a jacket; 15. a rotating groove; 16. rotating the strip; 17. flanging; 18. a screw hole; 19. a sealing groove; 20. a sealing strip; 21. an inner annular groove; 22. an outer annular groove.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1, the reinforcing structure for an anchor rod of a sandy soil slope disclosed in the present invention includes a tubular rod body 1 and slurry outlet holes 2 (refer to fig. 4) arranged on the rod body 1, wherein the rod body 1 is a pipe with one end open and the other end being a closed sharp end, and a stirring mechanism 3 is further arranged on the rod body 1.

The stirring mechanism 3 comprises a top shaft 4 and a driving part 5 movably connected in the rod body 1. The jacking shafts 4 are uniformly distributed along the axial direction and the circumferential direction of the rod body 1. Top shaft 4 sliding connection is on the 1 lateral wall of the body of rod, and 4 one ends of top shaft are located the body of rod 1, and the other end is located outside the body of rod 1, and the both ends of top shaft 4 all are provided with the locating part.

As shown in fig. 2 and 3, specifically, the inner wall of the rod body 1 is provided with a circular inner flat groove 6, the outer wall of the rod body 1 is provided with a circular outer flat groove 7 corresponding to the inner flat groove 6, and the cylindrical top shaft 4 penetrates through the side wall of the rod body 1 in the inner flat groove 6 and the outer flat groove 7 so as to form a sliding rod connection relationship with the side wall of the rod body 1. The top shaft 4 is connected with an inner limiting ring 8 on the circumferential surface of one end positioned in the rod body 1, an outer limiting ring 9 is arranged on the circumferential surface of the other end, an inner annular groove 21 is arranged on the inner wall of the inner flat groove 6, and an outer annular groove 22 is arranged on the inner wall of the outer flat groove 7. When the outer limiting ring 9 is clamped into the outer annular groove 22, the end surface of one end of the top shaft 4, which is positioned outside the rod body 1, is flush with the outer surface of the rod body 1 or is lower than the outer surface of the rod body 1; when the inner limiting ring 8 is clamped in the inner annular groove 21, the end surface of the top shaft 4 positioned in the rod body 1 is flush with the inner surface of the rod body 1 or lower than the inner surface of the rod body 1.

And, the one end that apical axis 4 is located the body of rod 1 keeps the interval with the axis of the body of rod 1 all the time, and when interior spacing ring 8 card was gone into in interior annular groove 21 promptly, the one end terminal surface that apical axis 4 is located the body of rod 1 kept certain interval with the axis of the body of rod 1 all the time.

As shown in fig. 1, the driving member 5 is a rod with a sharp end, and the outer diameter of the driving member 5 is consistent with the inner diameter of the rod body 1; therefore, when the sharp end of the driving member 5 is inserted along the rod axis, the top shaft 4 is pushed by the driving member 5 to be pushed out of the rod body 1, so that the inner limit ring 8 is engaged in the inner annular groove 21.

The outer surface of the rod body 1 is spirally provided with a spiral blade 10 along the axial direction, and one end of the opening of the rod body 1 is fixed with a handle rod 11 along the radial direction. When one end of the top shaft 4 located in the rod body 1 is flush with the inner wall of the rod body 1 or falls into the inner wall of the rod body 1, one end of the top shaft 4 located outside the rod body 1 is more protruded out of the outer surface of the rod body 1 than the spiral blade 10.

In the process of inserting the rod body 1 into the side slope, the outer limiting ring 9 is clamped into the outer annular groove 22, if equipment can rotate the rod body 1, the rod body 1 is rotated by the equipment to be screwed into the side slope, and if the equipment cannot be used, the rod body 1 can be rotated by manually holding the handle rod 11. Because the presence of the helical blades 10 makes it easier to screw the rod 1 into the slope. In the process of screwing the rod body 1 into the slope, the outer limiting ring 9 is clamped into the outer annular groove 22, namely, one end of the top shaft 4, which is positioned outside the rod body 1, is flush with the outer surface of the rod body 1 or is lower than the outer surface of the rod body 1.

After the rod body 1 is inserted into the slope, the top shaft 4 can be withdrawn from the rod body 1 by inserting the driving member 5 into the rod body 1. And because the end of the top shaft 4 inside the rod body 1 is flush with the inner wall of the rod body 1 or is stuck to the inner wall of the rod body 1, the end of the top shaft 4 outside the rod body 1 is more protruded out of the outer surface of the rod body 1 than the spiral blade 10, when the rod body 1 rotates after the top shaft 4 is inserted into the soil layer outside the rod body 1, the rod body 1 cannot rotate to exit the slope due to the existence of the spiral blade 10. And, after the body of rod 1 is inserted to the side slope, connect grouting pipe (not shown in the figure) and inject mortar into body of rod 1 through swivel connector 12, then mortar will be exported from grout outlet 2, because the existence of apical axis 4 again, will let sand and mortar mix and stir together when body of rod 1 is rotatory.

As shown in fig. 1 and 5, the rotary connector 12 is specifically located at one end of the opening of the rod body 1, and the rotary connector 12 is detachably connected with a grouting pipe (not shown in the figure). The rotary connector 12 comprises an inner sleeve 13 and an outer sleeve 14 which are coaxially connected, wherein a ring-shaped rotating groove 15 is formed on the outer surface of one end of the inner sleeve 13, a ring-shaped rotating strip 16 is formed on the inner surface of the outer sleeve 14, and the rotating strip 16 is clamped in the rotating groove 15, so that the inner sleeve 13 is rotatably connected with the outer sleeve 14. One end of the inner sleeve 13 is coaxially and fixedly connected with the inner wall of the open end of the rod body 1, one end of the outer sleeve 14 is turned outwards to form a flange 17, screw holes 18 are circumferentially distributed on the flange 17, and one end of the grouting pipeline is generally provided with a flange (not shown in the figure) which is connected with the flange 17 through a bolt piece, so that the rotary connector 12 is detachably connected with the grouting pipeline.

As shown in fig. 1 and 4, a dovetail groove-shaped or T-shaped sealing groove 19 is formed in the outer surface of the rod body 1 along the axial direction, the sealing groove 19 is further distributed along the circumferential direction of the rod body 1, a sealing strip 20 is arranged in the sealing groove 19, the slurry outlet holes 2 are all arranged in the sealing groove 19, and the sealing strip 20 can only be drawn out along the length direction of the sealing groove 19.

During grouting, the sealing strip 20 is gradually pulled out from the sealing groove 19 along the axial direction of the rod body 1, so that the grout outlet 2 near the sharp end of the rod body 1 is opened first. When only the grout outlet 2 close to the sharp end of the rod body 1 is opened, mortar can only flow out of the rod body 1 from the grout outlet 2 at the position to be mixed with sandy soil. After the sealing strip 20 is pulled out of the sealing groove 19, the mortar flows out from the newly opened mortar outlet 2, and the mortar outlet 2 which is opened before flows out is less in relative mortar outlet because the mortar already flows out. Finally, the mortar can be uniformly mixed with the sand around the rod body 1.