CN218622208U

CN218622208U - Composite soil nail support

Info

Publication number: CN218622208U
Application number: CN202222905598.1U
Authority: CN
Inventors: 邢向东; 金东星; 陈祥杰; 周炳贵; 陈晓
Original assignee: Wuyang Construction Group Co ltd
Current assignee: Wuyang Construction Group Co ltd
Priority date: 2022-11-02
Filing date: 2022-11-02
Publication date: 2023-03-14
Anticipated expiration: 2032-11-02

Abstract

The utility model relates to a foundation pit support field, in particular to, relate to a compound soil nail support, which comprises a housin, be equipped with the soil nail on the casing, the casing with soil nail sliding connection, still be equipped with on the casing and be used for locking the first locking subassembly of the removal of soil nail, be equipped with the anchor pole that is used for with the anchoring of the soil body on the soil nail, anchor pole with the soil nail is articulated, anchor pole is equipped with a plurality ofly around soil nail annular array, be equipped with the spacing subassembly that is used for restricting the rotation range of anchor pole on the soil nail, the free end of anchor pole is connected with the stay cord; the utility model aims at overcoming the not enough of prior art and providing a compound soil nail is strutted and can still need constantly research at the anti bending capability that strengthens soil nail and strut under the prerequisite that does not change the diameter of soil nail.

Description

Composite soil nail support

Technical Field

The utility model relates to a excavation supporting field especially relates to a compound soil nail is strutted.

Background

With the high-speed development of national economy and the rapid promotion of urbanization process, the problems of land shortage, living and living space contraction, greening reduction, ecological imbalance and the like are increasingly highlighted. Particularly, as the ground buildings gradually reach bottlenecks in aspects of height, economy, efficiency and the like, limited ground space cannot meet requirements of human activities, basic urban functions are gradually transferred to the underground, and deep foundation pit engineering with large engineering quantity and high difficulty appears.

The excavation of the deep foundation pit is bound to carry out excavation on the soil body, and under the influence of the excavation, the soil body can be subjected to the load shedding action, so that the stress of the soil body is redistributed, and the redistribution of the stress is generally a main factor for inducing the deformation of the foundation pit or the supporting structure. The soil nail support in the prior art is small in diameter and weak in bending resistance, and soil nails are easy to deform in the soil body, so that the soil nail support is ineffective. Therefore, how to provide a composite soil nail support, which can enhance the bending resistance of the soil nail support on the premise of not changing the diameter of the soil nail, still needs continuous research.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at overcoming prior art's not enough and provide a compound soil nail support can strengthen the anti ability of buckling that soil nail supported under the prerequisite that does not change the diameter of soil nail.

In order to solve the technical problem, the technical scheme of the utility model is that:

the utility model provides a compound soil nail is strutted, includes the casing, be equipped with soil nail on the casing, the casing with soil nail sliding connection, still be equipped with on the casing and be used for the locking the first locking subassembly of the removal of soil nail, be equipped with on the soil nail be used for with soil body anchoring's anchor pole, anchor pole with soil nail is articulated, anchor pole winds soil nail annular array is equipped with a plurality ofly, be equipped with on the soil nail and be used for the restriction the spacing subassembly of anchor pole's rotation range, anchor pole's free end is connected with the stay cord.

Compare prior art, the utility model has the advantages of:

the utility model discloses when using, insert nail head and casing inside the soil body through the soil nail, when needing the anchoring casing, continue to promote the soil nail, make the soil nail move relative to the casing, the soil nail drives the anchor pole and removes, because the pulling force effect of stay cord to the anchor pole, the anchor pole rotates and injects the inside of the soil body, spacing subassembly restriction anchor pole's position makes the anchor pole can't continue to rotate, the stay cord is taut, first locking subassembly locks the relative position of soil nail and casing, because the anchor pole inserts in the inside of the soil body, the casing anchors in the inside of the soil body, first locking subassembly locks the removal of soil nail, the anchor pole switches into the anchoring state; because the stay cord is taut, when the casing receives the shearing force, because the pulling force effect of stay cord self has promoted the anti ability of buckling of casing.

The anchoring of the anchoring rods in the soil body is realized through the arrangement of the anchoring rods, the arrangement of a plurality of tightening pull ropes of the annular array is adopted, when the soil nail and the shell are subjected to stress which enables the shell to be bent in the soil body, the pull ropes of the annular array prevent the soil nail and the shell from being bent due to the internal tensile stress of the pull ropes, and therefore the bending resistance of the soil nail is improved on the premise that the diameter of the soil nail is not changed.

Preferably, the casing is provided with an inner cavity with a downward opening, the soil nail is fixedly provided with a nail head for sealing the opening, and the nail head is positioned on the front side of the anchoring rod.

Preferably, first locking Assembly includes spacing groove and spacing knot, the spacing groove is seted up on the soil nail, spacing knot with the casing rotates to be connected, spacing knot with during the spacing groove joint, the soil nail for the casing locking.

Preferably, the limiting assembly comprises a limiting block, the limiting block is fixedly connected with the soil nail, and when the anchoring rod rotates and is anchored with the soil body, the limiting block is abutted to the anchoring rod.

Preferably, the abutting surface of the limiting block and the anchoring rod is an inclined surface.

Preferably, the pull rope is movably connected with the shell, and a second locking assembly for locking the movement of the pull rope is arranged on the shell.

Preferably, the second locking assembly comprises a locking clamp, the locking clamp comprises two clamping plates, the pull rope penetrates through the two clamping plates of the locking clamp, and the distance between the two clamping plates of the locking clamp is adjusted through a bolt.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

fig. 3 is a schematic structural view of the initial state of the present invention;

fig. 4 is a schematic structural view of the anchoring state of the present invention;

fig. 5 is a schematic top view of the present invention.

Reference numerals: 10. a housing; 11. an inner cavity; 12. a nail head; 13. soil nailing; 14. a limiting groove; 15. a limit buckle; 16. a locking clip; 17. pulling a rope; 20. an anchor rod; 21. and a limiting block.

Detailed Description

The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings, so that the technical solution of the present invention can be more easily understood and grasped.

Referring to fig. 1 to 5, the present embodiment provides a composite soil nail support capable of enhancing the bending resistance of the soil nail support without changing the diameter of the soil nail.

The first embodiment is as follows:

referring to fig. 1 to 5, the soil nailing device includes a housing 10, a soil nail 13 is disposed on the housing 10, the housing 10 is slidably connected to the soil nail 13, an inner cavity 11 with a downward opening is disposed on the housing 10, a nail head 12 for sealing the opening is fixedly disposed on the soil nail 13, the nail head 12 is located on a front side of an anchor rod 20, the housing 10 is further provided with a limiting groove 14 and a limiting buckle 15 for locking movement of the soil nail 13, the limiting groove 14 is disposed on the soil nail 13, the limiting buckle 15 is rotatably connected to the housing 10, the limiting buckle 15 is clamped to the limiting groove 14, the soil nail 13 is provided with a plurality of anchor rods 20 for anchoring with a soil body, the anchor rods 20 are disposed around the annular array of the soil nails 13, the anchor rods 20 are disposed inside the inner cavity 11, the anchor rods 20 are hinged to the soil nail 13, the soil nail 13 is provided with a limiting block 21 for limiting a rotation range of the anchor rods 20, the limiting block 21 is fixedly connected to the soil nail 13, the housing 10 is provided with an annular array of a pull rope 20, and the pull rope 17 is connected to the housing 10;

the anchoring rod 20 is divided into an initial state and an anchoring state, when the anchoring rod 20 is in the initial state, the anchoring rod 20 is folded outside the soil nail 13, along with the movement of the soil nail 13 and the anchoring rod 20, the anchoring rod 20 rotates under the action of the pull rope 17 and is inserted into the soil body, the limiting buckle 15 is clamped with the limiting groove 14 to lock the movement of the soil nail 13, and the anchoring rod 20 is switched into the anchoring state.

When in use: the nail head 12 and the shell 10 are inserted into the soil body through the soil nail 13, when the shell 10 needs to be anchored, the soil nail 13 is continuously pushed, the soil nail 13 moves relative to the shell 10, the soil nail 13 drives the anchoring rod 20 to move, due to the pulling force effect of the pull rope 17 on the anchoring rod 20, the anchoring rod 20 rotates and is inserted into the soil body, the limiting block 21 limits the position of the anchoring rod 20 to enable the anchoring rod 20 not to continuously rotate, the pull rope 17 is tightened, the first locking assembly locks the relative position of the soil nail 13 and the shell 10, due to the fact that the anchoring rod 20 is inserted into the soil body, the shell 10 and the soil nail 13 are anchored into the soil body, and the anchoring rod 20 is switched into an anchoring state.

The anchoring of the anchoring rods 20 in the soil body is realized through the arrangement of the anchoring rods 20, and through the arrangement of the plurality of tightening pull ropes 17 of the annular array, when the soil nails 13 and the shells 10 are subjected to stress which makes the shells 10 bent in the soil body, the bending of the soil nails 13 and the shells 10 is prevented by the pull ropes 17 of the annular array due to the internal tensile stress, so that the bending resistance of the soil nails 13 is improved on the premise of not changing the diameters of the soil nails 13

The second embodiment:

the present embodiment is different from the first embodiment in that the pulling rope 17 is connected to the housing 10 in a different manner.

Referring to fig. 2, 3 and 5, in order to adjust the internal stress of the pulling rope 17, in this embodiment, the pulling rope 17 is movably connected to the housing 10, a locking clip 16 for locking the movement of the pulling rope 17 is disposed on the housing 10, the locking clip 16 includes two clamping plates, the pulling rope 17 passes through the two clamping plates of the locking clip 16, and the distance between the two clamping plates of the locking clip 16 is adjusted by a bolt.

When in use: when the soil nail 13 is located inside the soil body, the soil nail 13 and the shell 10 tend to bend under the stress action inside the soil body, the internal stress of the stay cord 17 on one side is increased and tightened, the internal stress of the stay cord 17 on the other side is smaller and looser, the loosened stay cord 17 is manually tightened, the stay cord 17 is clamped by the two clamping plates of the locking clamp 16, and the distance between the two clamping plates is reduced by the bolts to lock the movement of the stay cord 17.

Above only the typical example of the utility model discloses, in addition, the utility model discloses can also have other multiple concrete implementation manners, all adopt the technical scheme that equivalent replacement or equivalent transform formed, all fall in the utility model discloses the scope of claiming.

Claims

1. The utility model provides a compound soil nail is strutted, includes casing (10), be equipped with soil nail (13) on casing (10), its characterized in that, casing (10) with soil nail (13) sliding connection, still be equipped with on casing (10) and be used for the locking the first locking subassembly of the removal of soil nail (13), be equipped with on soil nail (13) and be used for anchor pole (20) with soil body anchoring, anchor pole (20) with soil nail (13) are articulated, anchor pole (20) wind soil nail (13) ring array is equipped with a plurality ofly, be equipped with on soil nail (13) and be used for the restriction the spacing subassembly of the rotation range of anchor pole (20), the free end of anchor pole (20) is connected with stay cord (17).

2. The composite soil nail support according to claim 1, wherein said shell (10) is provided with an inner cavity (11) with a downward opening, said soil nail (13) is fixedly provided with a nail head (12) for closing said opening, and said nail head (12) is located at the front side of said anchoring rod (20).

3. The composite soil nail support according to claim 1, wherein the first locking assembly comprises a limiting groove (14) and a limiting buckle (15), the limiting groove (14) is formed in the soil nail (13), the limiting buckle (15) is rotatably connected with the shell (10), and when the limiting buckle (15) is clamped with the limiting groove (14), the soil nail (13) is locked relative to the shell (10).

4. The composite soil nail support as claimed in claim 1, wherein said limiting member comprises a limiting block (21), said limiting block (21) is fixedly connected to said soil nail (13), and when said anchoring rod (20) is rotated to anchor the soil body, said limiting block (21) abuts against said anchoring rod (20).

5. The composite soil nailing support of claim 4, wherein the abutting surfaces of the limiting block (21) and the anchoring rod (20) are inclined surfaces.

6. The composite soil nail support according to claim 1 wherein said drawstring (17) is movably connected to said housing (10), said housing (10) being provided with a second locking assembly for locking the movement of said drawstring (17).

7. A composite soil nailing support according to claim 6, wherein said second locking assembly comprises a locking clip (16), said locking clip (16) comprises two clamping plates, said pull cord (17) passes between the two clamping plates of said locking clip (16), the spacing between the two clamping plates of said locking clip (16) is adjusted by means of bolts.