CN213682091U

CN213682091U - Soil nail structure for reinforcing pipe jacking working well

Info

Publication number: CN213682091U
Application number: CN202021991937.7U
Authority: CN
Inventors: 刘志南; 孙远冉; 孙晓明; 杜伟刚; 曹爱明; 周宇祥
Original assignee: Beijing Municipal Road and Bridge Co Ltd
Current assignee: Beijing Municipal Road and Bridge Co Ltd
Priority date: 2020-09-11
Filing date: 2020-09-11
Publication date: 2021-07-13
Anticipated expiration: 2030-09-11

Abstract

The utility model belongs to the technical field of the geotechnical reinforcement of underground works and specifically relates to a push pipe worker well consolidates soil nail structure of usefulness is related to, including first mobile jib and second mobile jib, be equipped with a plurality of connecting rod between first mobile jib and the second mobile jib, still include coupling mechanism, first mobile jib, a plurality of connecting rod and second mobile jib pass through coupling mechanism and end to end connection in proper order. The present application has an effect that the length of a single soil nail can be increased.

Description

Soil nail structure for reinforcing pipe jacking working well

Technical Field

The application relates to the field of underground engineering geotechnical reinforcement, in particular to a soil nail structure for reinforcing a pipe jacking working well.

Background

The soil nail is a slender metal component, is placed in the bottom layer in the construction process of the working well, is combined with the bottom layer into a whole in the modes of full-field grouting and the like, and plays the roles of restraining the deformation of the stratum and reinforcing the working well.

The current chinese utility model patent of grant bulletin No. CN206646502U discloses a steel-pipe type soil nail, including the soil nail main part, the soil nail main part is enclosed city hollow structure by the lateral wall, and soil nail main part one end is for the plane open end that is used for the slip casting, and the other end is the toper closed segment to the soil body application of force for being convenient for. Be equipped with the play thick liquid hole that the multirow was used for discharging ground paste in the soil nail main part on the lateral wall of soil nail main part, set up the barb reinforcing bar of the slope of one row of soil nail main part plane open end between two rows of adjacent play thick liquid holes, the middle part of barb reinforcing bar covers adjacent play thick liquid hole to prevent that the soil body from getting into out in the thick liquid hole before going out the thick liquid. When the soil nail is used, the soil nail main body is directly driven into the stratum soil body, the hollow structure in the soil nail main body is used as a grouting channel, and concrete slurry is injected into the grouting channel.

With respect to the related art in the above, the inventors thought that there was a drawback that the length of a single soil nail could not be increased when it was necessary to temporarily increase the length of the soil nail during actual work.

SUMMERY OF THE UTILITY MODEL

In order to improve the problem that soil nail length can not increase, this application provides a soil nail structure of usefulness is consolidated to push pipe working well.

The application provides a soil nail structure of usefulness is consolidated to push pipe working well adopts following technical scheme:

the utility model provides a push pipe working well consolidates soil nail structure of usefulness, includes first mobile jib and second mobile jib, be equipped with a plurality of connecting rod between first mobile jib and the second mobile jib, still include coupling mechanism, first mobile jib, a plurality of connecting rod and second mobile jib pass through coupling mechanism and end to end connection in proper order.

Through adopting above-mentioned technical scheme, coupling mechanism connects first mobile jib and connecting rod, connecting rod and second mobile jib, and the quantity of connecting rod can increase and decrease according to actual conditions's needs. When the length of soil nail needs to be increased, the number of the connecting rods is increased, the connecting rods are sequentially connected in the head direction, and the connecting rods are also connected through the connecting mechanism, so that the effect that the length of a single soil nail can be increased is achieved.

Preferably, the connecting mechanism comprises a first boss fixedly connected with the end surface of the first main rod close to the connecting rod, a first inserting groove for inserting the first lug boss is arranged inwards on the end surface of the connecting rod close to the first main rod, the connecting rod is in threaded connection with a first connecting bolt which is abutted against the first boss, a second boss is fixedly connected with the end surface of one side of the connecting rod, which is far away from the first main rod, the second boss is spliced with the first splicing groove on the adjacent connecting rod, the first connecting bolt on the second connecting rod is butted with the second boss, a plurality of connecting rods are sequentially connected with one another at the head position, a second inserting groove is arranged inwards on one side end surface of the second main rod close to the connecting rod, a second boss on the connecting rod close to the second main rod is inserted with the second inserting groove, and the second main rod is in threaded connection with a second connecting bolt, and the second connecting bolt is abutted against a second boss on a connecting rod close to the second main rod.

Through adopting above-mentioned technical scheme, first boss and first inserting groove are pegged graft, and in first connecting bolt twisted the connecting rod, first connecting bolt was connected connecting rod and first mobile jib with the inseparable butt of first boss, and the connection process is more convenient. The second boss is inserted with the first inserting groove that the second connecting rod was equipped with, then screws up the first connecting bolt on the second connecting rod and connects two connecting rods. The number of the connecting rods is increased according to actual needs, and the connecting rods are sequentially connected in a head position. The second boss on the connecting rod is plugged with the second inserting groove, the second connecting bolt is screwed, the connecting rod is connected with the second main rod through the second connecting bolt, and the connecting process is more convenient.

Preferably, the first boss is provided with a first connecting groove for the insertion of the first connecting bolt.

Through adopting above-mentioned technical scheme, when first connecting bolt and first boss butt, first connecting bolt is pegged graft with first connecting groove. The first connecting bolt is tightly abutted with the bottom of the first connecting groove, and the first connecting groove increases the stability of the first connecting bolt in abutting connection with the first boss.

Preferably, one end of the first connecting bolt, which is close to the first boss, is fixedly connected with a first anti-slip pad, and the first anti-slip pad is abutted to the first boss.

Through adopting above-mentioned technical scheme, first slipmat contacts with first boss, and first slipmat increases the stability when first connecting bolt and first boss butt.

Preferably, the second boss is provided with a second connecting groove for the insertion of a second connecting bolt.

Through adopting above-mentioned technical scheme, stability when second connecting slot increases second connecting bolt and second boss butt.

Preferably, one end of the second connecting bolt close to the second boss is fixedly connected with a second anti-slip pad, and the second anti-slip pad is abutted to the second boss.

Through adopting above-mentioned technical scheme, stability when second slipmat increases second connecting bolt and second boss butt.

Preferably, the outer surfaces of the first main rod, the connecting rod and the second main rod are respectively and fixedly connected with a plurality of inclined limiting rods.

Through adopting above-mentioned technical scheme, the gag lever post is close to second mobile jib closed end respectively with first mobile jib, connecting rod and second mobile jib fixed connection, a plurality of gag lever post forms barb structure. After the soil nail is inserted into the underground soil layer, the limiting rod increases the stability of the soil nail inserted into the soil layer, and the possibility that the soil nail is separated from the soil layer is reduced.

Preferably, the inside of first mobile jib, connecting rod and second mobile jib is hollow structure respectively, the both ends face difference opening setting of first mobile jib and connecting rod, the second mobile jib is close to one side opening setting of connecting rod, the second mobile jib is kept away from one side of connecting rod and is sealed the setting, the surface of first mobile jib, connecting rod and second mobile jib is equipped with the injected hole that a plurality of and inside intercommunication set up respectively, and the outer end department by a injected hole is arranged respectively in to every gag lever post.

Through adopting above-mentioned technical scheme, the in-process of soil layer is inserted to the soil nail, and the gag lever post can be kept off soil once, reduces the soil as far as possible and gets into the downthehole possibility of stopping up the slip casting hole of slip casting.

Preferably, the one end department that the slip casting hole is close to the outside is equipped with keeps off the native board, keep off native board and gag lever post fixed connection.

Through adopting above-mentioned technical scheme, the in-process of soil layer is inserted to the soil nail, keeps off the native board and can keep off soil once, reduces soil as far as possible and gets into the downthehole possibility of stopping up the slip casting hole of slip casting.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the length of the soil nail needs to be increased, the number of the connecting rods is increased, the connecting rods are sequentially connected in an initial position, and the connecting rods are also connected through the connecting mechanism, so that the effect that the length of a single soil nail can be increased is achieved;

2. after the soil nail is inserted into the underground soil layer, the limiting rod increases the stability of the soil nail inserted into the soil layer, and the possibility that the soil nail is separated from the soil layer is reduced.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present application.

Fig. 2 is a schematic view showing the first boss in the present embodiment.

Fig. 3 is a schematic view of the second insertion groove in this embodiment.

Description of reference numerals: 1. a first main bar; 11. a first boss; 111. a first connecting groove; 2. a second main bar; 21. a second insertion groove; 22. a second connecting bolt; 221. a second non-slip mat; 3. a connecting rod; 31. a first insertion groove; 32. a first connecting bolt; 321. a first non-slip mat; 33. a second boss; 331. a second connecting groove; 4. grouting holes; 5. a limiting rod; 6. a soil guard plate; 61. a connecting plate.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a soil nail structure for reinforcing a pipe jacking working well. As shown in fig. 1 and 2, the soil nailing device includes a first main rod 1 and a second main rod 2, and a connecting rod 3 is disposed between the first main rod 1 and the second main rod 2. The first main rod 1 is a round rod with a hollow structure inside, and two end faces of the first main rod 1 are provided with openings. The connecting rod 3 is also a round rod with a hollow structure inside, and two end faces of the connecting rod 3 are respectively provided with openings. The second main rod 2 is also a round rod with a hollow structure inside, and one end surface of the second main rod 2 is open, and the other end surface is closed and conical (refer to fig. 3).

As shown in fig. 1 and 2, a plurality of grouting holes 4 communicated with the inside are respectively formed in the surfaces of the first main rod 1, the connecting rod 3 and the second main rod 2, concrete grout is injected into the first main rod 1, and the concrete grout flows out of the grouting holes 4 in the first main rod 1, the connecting rod 3 and the second main rod 2.

Soil nail still includes coupling mechanism, and coupling mechanism connects first mobile jib 1 and connecting rod 3, connecting rod 3 and second mobile jib 2 are connected, and the quantity of connecting rod 3 can increase and decrease according to actual conditions's needs. When the length of soil nail needs to be increased, the number of the connecting rods 3 is increased, the connecting rods 3 are sequentially connected in the head direction, the connecting rods 3 are also connected through the connecting mechanism, and the effect that the length of a single soil nail can be increased is achieved.

As shown in fig. 2, the connecting mechanism includes a first boss 11 fixedly connected to the end surface of the first main rod 1 close to the connecting rod 3, and the first boss 11 is disposed around the end surface of the first main rod 1. The end surface of the connecting rod 3 close to the first main rod 1 is provided with a first inserting groove 31 inwards, and the first boss 11 is inserted into the first inserting groove 31.

One side threaded connection that connecting rod 3 surface is close to first mobile jib 1 has first connecting bolt 32, and in first connecting bolt 32 twisted connecting rod 3, first connecting bolt 32 and the inseparable butt of first boss 11 are connected connecting rod 3 and first mobile jib 1, and the connection process is more convenient.

As shown in fig. 2, the first boss 11 has a first connecting groove 111 formed therein in an outer surface thereof, and when the first connecting bolt 32 abuts against the first boss 11, the first connecting bolt 32 is inserted into the first connecting groove 111. The first connecting bolt 32 is in close contact with the bottom of the first connecting groove 111, and the first connecting groove 111 increases the stability of the first connecting bolt 32 in contact with the first boss 11.

The first anti-slip pad 321 is fixedly connected to one end of the first connecting bolt 32 abutted to the first boss 11, the first anti-slip pad 321 contacts with the bottom of the first connecting groove 111, and the first anti-slip pad 321 increases stability of the first connecting bolt 32 abutted to the first boss 11.

As shown in fig. 2, the connecting mechanism further includes a second boss 33 fixedly connected to an end surface of one side of the connecting rod 3 away from the first main rod 1, and the second boss 33 is disposed around the end surface of the connecting rod 3. The second boss 33 is inserted into the first insertion groove 31 of the second connecting rod 3, and then the first connecting bolt 32 of the second connecting rod 3 is tightened to connect the two connecting rods 3. The surface of the second boss 33 is provided inward with a second connection groove 331, and the first connection bolt 32 abuts against the groove bottom of the second connection groove 331. The number of the connecting rods 3 is increased according to actual needs, and the connecting rods 3 are sequentially connected in a head mode. The number of tie bars 3 is two in this embodiment.

As shown in fig. 3, the connecting mechanism further includes a second inserting groove 21 formed on one side of the second main rod 2 close to the connecting rod 3, and a second boss 33 on the connecting rod 3 is inserted into the second inserting groove 21. One side threaded connection that the second mobile jib 2 surface is close to connecting rod 3 has second connecting bolt 22, screws up second connecting bolt 22, and the slot bottom of second connecting bolt 22 and second spread groove 331 is closely butt, and second connecting bolt 22 is connected connecting rod 3 and second mobile jib 2, and the connection process is more convenient.

One end of the second connecting bolt 22 abutted against the second boss 33 is fixedly connected with a second anti-slip pad 221, the second anti-slip pad 221 is abutted against the groove bottom of the second connecting groove 331, and the second anti-slip pad 221 increases the stability of the second connecting bolt 22 in abutment against the second boss 33.

As shown in fig. 1, the surface of the first main rod 1, the connecting rod 3 and the second main rod 2 is fixedly connected with a plurality of limiting rods 5 which are obliquely arranged, the limiting rods 5 are close to the closed end surface of the second main rod 2 and are fixedly connected with the first main rod 1, the connecting rod 3 and the second main rod 2, and the plurality of limiting rods 5 form a barb structure.

After the soil nail is inserted into the underground soil layer, the limiting rod 5 increases the stability of the soil nail inserted into the soil layer, and reduces the possibility that the soil nail is separated from the soil layer.

Every gag lever post 5 is arranged in respectively and is close to the outer end department of injected hole 4, and the in-process of soil horizon is inserted to the soil nail, and gag lever post 5 can keep off soil once, reduces the possibility that soil gets into and blocks up injected hole 4 in the injected hole 4 as far as possible.

As shown in fig. 1 and 2, a retaining plate 6 is provided at one end of each grouting hole 4 near the outside, the retaining plate 6 is fixedly connected with the stop rod 5, and a connecting plate 61 is integrally formed at one side of the retaining plate 6 far from the stop rod 5. The connecting plate 61 arranged on the surface of the first main rod 1 is fixedly connected with the first main rod 1, the connecting plate 61 arranged on the surface of the connecting rod 3 is fixedly connected with the connecting plate 61, and the connecting plate 61 arranged on the surface of the second main rod 2 is fixedly connected with the second main rod 2. The connecting plate 61 increases the stability when the retaining plate 6 is connected to the stopper rod 5.

In the process that the soil nail is inserted into the soil layer, the soil retaining plate 6 can keep off the soil, and the possibility that the soil enters the grouting hole 4 to block the grouting hole 4 is reduced as much as possible.

The implementation principle of the soil nail structure for reinforcing the pipe jacking working well is as follows: the first boss 11 and the first inserting groove 31 are inserted, the first connecting bolt 32 is screwed into the connecting rod 3, the first connecting bolt 32 is tightly abutted against the first boss 11, and the connecting rod 3 is connected with the first main rod 1. The second boss 33 is inserted into the first insertion groove 31 of the second connecting rod 3, and then the first connecting bolt 32 of the second connecting rod 3 is tightened to connect the two connecting rods 3. The number of the connecting rods 3 is increased according to actual needs, and the connecting rods 3 are sequentially connected in a head mode. The number of the connecting rods 3 is increased according to actual needs, and the connecting rods 3 are sequentially connected in a head mode. The second boss 33 on the connecting rod 3 is inserted into the second insertion groove 21, the second connecting bolt 22 is screwed, the second connecting bolt 22 is tightly abutted to the groove bottom of the second connecting groove 331, and the connecting rod 3 is connected with the second main rod 2 through the second connecting bolt 22.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a push pipe working well consolidates soil nail structure of usefulness which characterized in that: including first mobile jib (1) and second mobile jib (2), be equipped with a plurality of connecting rod (3) between first mobile jib (1) and second mobile jib (2), still include coupling mechanism, first mobile jib (1), a plurality of connecting rod (3) and second mobile jib (2) are through coupling mechanism end to end connection in proper order.

2. The soil nail structure for reinforcing a pipe jacking working well according to claim 1, wherein: the connecting mechanism comprises a first boss (11) fixedly connected with the end face of the first main rod (1) close to the connecting rod (3), a first inserting groove (31) for inserting the first boss (11) is formed in the end face of the connecting rod (3) close to the first main rod (1), a first connecting bolt (32) is connected with the connecting rod (3) in a threaded mode, the first connecting bolt (32) is abutted against the first boss (11), a second boss (33) is fixedly connected with the end face of one side, far away from the first main rod (1), of the connecting rod (3), the second boss (33) is inserted into the first inserting groove (31) in the adjacent connecting rod (3), the first connecting bolt (32) in the second connecting rod (3) is abutted against the second boss (33), the connecting rods (3) are sequentially connected in a head position mode, a second inserting groove (21) is formed in the end face of one side, close to the connecting rod (3), of the second main rod (2), second boss (33) on connecting rod (3) that is close to second mobile jib (2) are pegged graft with second inserting groove (21), second mobile jib (2) threaded connection has second connecting bolt (22), second connecting bolt (22) and second boss (33) butt on connecting rod (3) that is close to second mobile jib (2).

3. The soil nail structure for reinforcing a pipe jacking working well according to claim 2, wherein: the first lug boss (11) is provided with a first connecting groove (111) for the insertion of a first connecting bolt (32).

4. The soil nail structure for reinforcing a pipe jacking working well according to claim 2, wherein: one end, close to the first boss (11), of the first connecting bolt (32) is fixedly connected with a first anti-skid pad (321), and the first anti-skid pad (321) is abutted to the first boss (11).

5. The soil nail structure for reinforcing a pipe jacking working well according to claim 3, wherein: the second boss (33) is provided with a second connecting groove (331) for the insertion of a second connecting bolt (22).

6. The soil nail structure for reinforcing a pipe jacking working well according to claim 3, wherein: one end, close to the second boss (33), of the second connecting bolt (22) is fixedly connected with a second anti-skid pad (221), and the second anti-skid pad (221) is abutted to the second boss (33).

7. The soil nail structure for reinforcing a pipe jacking working well according to claim 1, wherein: the outer surfaces of the first main rod (1), the connecting rod (3) and the second main rod (2) are respectively fixedly connected with a plurality of limiting rods (5) which are obliquely arranged.

8. The soil nail structure for reinforcing a pipe jacking working well according to claim 7, wherein: the inside of first mobile jib (1), connecting rod (3) and second mobile jib (2) is hollow structure respectively, the both ends face difference opening setting of first mobile jib (1) and connecting rod (3), one side opening setting that second mobile jib (2) are close to connecting rod (3), one side that connecting rod (3) were kept away from in second mobile jib (2) seals the setting, the surface of first mobile jib (1), connecting rod (3) and second mobile jib (2) is equipped with slip casting hole (4) that a plurality of and inside intercommunication set up respectively, and the outer end department by individual slip casting hole (4) is arranged in respectively in every gag lever post (5).

9. The soil nail structure for reinforcing a pipe jacking working well according to claim 8, wherein: the one end department that slip casting hole (4) are close to the outside is equipped with keeps off native board (6), keep off native board (6) and gag lever post (5) fixed connection.