CN213329047U

CN213329047U - Geotechnical engineering unilateral isolation foundation pit supporting structure

Info

Publication number: CN213329047U
Application number: CN202022139621.1U
Authority: CN
Inventors: 黄天均; 田美霞; 田瑞霞
Original assignee: Chongqing Jiancheng Construction Drawing Review Co ltd; Chongqing Zhuohui Engineering Survey And Design Co ltd; NORTHWEST RESEARCH INSTITUTE OF ENGINEERING INVESTIGATIONS AND DESIGN
Current assignee: Chongqing Jiancheng Construction Drawing Review Co ltd; Chongqing Zhuohui Engineering Survey And Design Co ltd; NORTHWEST RESEARCH INSTITUTE OF ENGINEERING INVESTIGATIONS AND DESIGN
Priority date: 2020-09-26
Filing date: 2020-09-26
Publication date: 2021-06-01
Anticipated expiration: 2030-09-26

Abstract

The utility model discloses a geotechnical engineering unilateral keeps apart underground structure, including a backplate, inflation soil nail and stock, inflation soil nail includes four blades, the right-hand member fixedly connected with of blade hinders the pipe, the middle part fixedly connected with soil thorn of blade, four blade inner chamber is equipped with the ball, the right-hand member fixedly connected with pulling force cable of ball, and the pulling force cable runs through the inner chamber that hinders the pipe, the utility model relates to a supporting construction technical field. This geotechnical engineering unilateral keeps apart excavation supporting construction utilizes blade to expand to split and soil thorn to produce extrusion force and fixed resistance to foundation ditch lateral wall soil layer, and the first screw rod of connecting through the guy cable right-hand member runs through a backplate bottom and is fixed through first nut, utilizes the stock to fix at upper portion soil layer, and the middle part of rethread pull rod connection stock and the upper portion of a bracing piece reduce the waste in foundation ditch inside construction space, and the structural installation is simple, can cyclic utilization, reduce excavation supporting engineering cost.

Description

Geotechnical engineering unilateral isolation foundation pit supporting structure

Technical Field

The utility model relates to a supporting construction technical field specifically is a geotechnical engineering unilateral keeps apart excavation supporting construction.

Background

The foundation pit supporting structure system generally comprises two parts, namely a soil retaining structure and a precipitation and water stopping system. Pile and wall type supporting structures often adopt steel sheet piles, reinforced concrete sheet piles, column-column type cast-in-place piles, underground continuous walls and the like. According to the soil condition and the size of the foundation pit, the foundation pit can be designed to be cantilever type, inner support type or anchor type. The gravity type supporting structure mostly adopts a cement soil mixing pile retaining wall, a soil nailing wall and the like. When the supporting structure can not play the role of water stop, a water stop curtain can be arranged or precipitation outside the pit is adopted at the same time so as to achieve the purpose of controlling underground water, so that the foundation pit earthwork engineering can be excavated under the dry operation condition.

The existing foundation pit supporting construction is high in construction cost and large in operation quantity, is the key point of competition of each construction unit, is complex in technology, wide in related range, multiple in variation factor and frequent in accident, is a temporary construction, is generally unwilling to invest more funds, but once an accident occurs, the treatment is very difficult, the economic loss and the social influence are often very serious, and part of supporting structures are supported and obliquely supported by cross beams inside the foundation pit, so that the construction space is greatly reduced.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a geotechnical engineering unilateral keeps apart excavation supporting construction has solved the problem that excavation supporting engineering cost is high, accident frequently takes place and construction space occupies.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a geotechnical engineering unilateral keeps apart excavation supporting construction, includes a backplate, inflation soil nail and stock, inflation soil nail includes four blades, the right-hand member fixedly connected with of blade hinders the pipe, the middle part fixedly connected with soil thorn of blade, four the blade inner chamber is equipped with the ball, the right-hand member fixedly connected with pulling force cable of ball, and the pulling force cable runs through the inner chamber that hinders the pipe, the fixed cover in left part of pulling force cable is equipped with the resistance ring, and hinders the right part that the ring is located the pipe, the first screw rod of right-hand member fixedly connected with of pulling force cable, the surperficial screwed connection of first screw rod has first nut.

Preferably, the stock includes U type location fork, the top center fixedly connected with of U type location fork keeps apart branch, keep apart branch and seted up two round holes, the bottom cover of keeping apart branch is equipped with the pulling force ring, the right side fixedly connected with pull rod of pulling force ring, the right-hand member fixedly connected with second screw rod of pull rod, the surperficial screwed connection of second screw rod has the second nut.

Preferably, the left side of the isolation supporting rod is fixedly connected with an isolation plate through a round hole by a screw, and clamping ports are arranged on two sides of the isolation plate.

Preferably, the division board is PE polyethylene material, division board right side and the fixed connection in position that is connected with the screw have a metal nut.

Preferably, the supporting and protecting plate is sequentially provided with a pull rod hole and two cable holes from top to bottom, and the second screw rod and the first screw rod respectively penetrate through the pull rod hole and the cable holes.

Preferably, the left part of the supporting plate is provided with a separation net, and the left side of the separation net is provided with waterproof cloth.

Advantageous effects

The utility model provides a geotechnical engineering unilateral keeps apart excavation supporting construction. Compared with the prior art, the method has the following beneficial effects:

(1) the geotechnical engineering unilateral isolation foundation pit supporting structure comprises four blades, wherein the right ends of the blades are fixedly connected with a resistance pipe, the middle parts of the blades are fixedly connected with a soil thorn, the inner cavities of the four blades are provided with round balls, the right ends of the round balls are fixedly connected with tension cables, the tension cables penetrate through the inner cavities of the resistance pipes, the left parts of the tension cables are fixedly sleeved with resistance rings, the resistance rings are positioned at the right parts of the resistance pipes, the right ends of the tension cables are fixedly connected with first screw rods, the surfaces of the first screw rods are spirally connected with first screw caps, anchor rods comprise U-shaped positioning forks, isolation support rods are fixedly connected to the centers of the tops of the U-shaped positioning forks, the isolation support rods are provided with two round holes, the bottom parts of the isolation support rods are sleeved with tension rings, the right sides of the tension rings are fixedly connected with pull rods, the right ends of the pull rods are fixedly connected, utilize blade to expand to split and soil thorn to produce extrusion force and fixed resistance to foundation ditch lateral wall soil layer, the first screw rod of connecting through the guy cable right-hand member runs through a backplate bottom and fixes through first nut, utilizes the stock to fix at upper portion soil layer, and the middle part of rethread pull rod connection stock and the upper portion of bracing pole reduce the waste in foundation ditch inside construction space, and the structural installation is simple, can cyclic utilization, reduces excavation supporting engineering cost.

(2) This geotechnical engineering unilateral keeps apart excavation supporting construction, run through round hole fixedly connected with division board through the screw in the left side of keeping apart branch, the both sides of division board are provided with the screens mouth, the division board left part is equipped with separates the net, it is equipped with the tarpaulin to separate the net left side, utilize the division board of keeping apart branch fixed connection, carry out the safety isolation to non-constructor, prevent that non-constructor from missing the foundation ditch, cause the damage, and the division board is the PE polyethylene material, multiunit division board accessible screens mouth bayonet connection, prevent ultraviolet irradiation ageing, can also alleviate outside rivers and pour into to the foundation ditch, but equipment cyclic utilization, reduce the waste of engineering construction material.

Drawings

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

FIG. 2 is a structural cross-sectional view of the expansive soil nail of the present invention;

FIG. 3 is a perspective view of the support plate of the present invention;

fig. 4 is a sectional view of the structure of the partition board of the present invention.

In the figure: 1. supporting the guard plate; 2. expanding soil nails; 3. an anchor rod; 4. a blade; 5. blocking the pipe; 6. soil piercing; 7. a ball; 8. a tension cable; 9. blocking a ring; 10. a first screw; 11. a first nut; 12. a U-shaped positioning fork; 13. an isolating strut; 14. a circular hole; 15. a tension ring; 16. a pull rod; 17. a second screw; 18. a second nut; 19. a screw; 20. a separator plate; 21. a position clamping port; 22. a metal nut; 23. a draw bar hole; 24. a cable hole; 25. separating the net; 26. a waterproof cloth.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a geotechnical engineering unilateral isolation foundation pit supporting structure comprises a supporting plate 1, an expansion soil nail 2 and an anchor rod 3, wherein the supporting plate 1 is sequentially provided with a pull rod hole 23 and two cable holes 24 from top to bottom, a second screw 17 and a first screw 10 respectively penetrate through the pull rod hole 23 and the cable holes 24, the left part of the supporting plate 1 is provided with a spacer screen 25, the left side of the spacer screen 25 is provided with a waterproof cloth 26, the expansion soil nail 2 comprises four blades 4, the right end of each blade 4 is fixedly connected with a resistance tube 5, the middle part of each blade 4 is fixedly connected with a soil thorn 6, the inner cavity of each blade 4 is provided with a round ball 7, the right end of each round ball 7 is fixedly connected with a tension cable 8, the tension cable 8 penetrates through the inner cavity of the resistance tube 5, the left part of the tension cable 8 is fixedly sleeved with a resistance ring 9, the resistance ring 9 is positioned at the right part of the resistance tube 5, the right end of the tension cable 8 is fixedly connected with the first screw 10, the anchor rod 3 comprises a U-shaped positioning fork 12, an isolation support rod 13 is fixedly connected to the center of the top of the U-shaped positioning fork 12, two round holes 14 are formed in the isolation support rod 13, a tension ring 15 is sleeved at the bottom of the isolation support rod 13, a pull rod 16 is fixedly connected to the right side of the tension ring 15, a second screw rod 17 is fixedly connected to the right end of the pull rod 16, a second screw cap 18 is spirally connected to the surface of the second screw rod 17, the blade 4 is used for expanding and cracking and the soil thorns 6 are used for generating extrusion force and fixed resistance on soil layers on the side wall of the foundation pit, a first screw rod 10 connected through the right end of a tension cable 8 penetrates through the bottom of the support plate 1 and is fixed through a first screw cap 11, the anchor rod 3 is fixed on the soil layer on the upper part, the middle part of the anchor rod 3 and the upper part of the support rod 1 are connected through, keep apart the left side of branch 13 and run through 14 fixedly connected with division board 20 of round hole through screw 19, the both sides of division board 20 are provided with screens mouth 21, division board 20 is the PE polyethylene material, division board 20 right side and the fixed position that is connected with screw 19 are connected with metal nut 22, utilize 19 fixedly connected with of screw's division branch 13 and division board 20, carry out safety isolation to non-constructor, prevent that non-constructor from missing the foundation ditch, cause the damage, and division board 20 is the PE polyethylene material, 20 accessible screens mouth 21 bayonet connections of multiunit division board, prevent ultraviolet irradiation ageing, can also alleviate outside rivers and pour into to the foundation ditch, equipment cyclic utilization, reduce the waste of engineering construction material.

And those not described in detail in this specification are well within the skill of those in the art.

When in use, firstly, the hole is drilled downwards in the soil layer of the side wall of the foundation pit in an inclined mode according to the guy cable holes 24 on the support guard plate 1, then the expansive soil nails 2 are placed to the bottom of the hole, the guy cable 8 is pulled back, the soil thorns 6 are pricked back into the soil layer, the blades 4 are outwards expanded under the force of the balls 7 and fixed at the bottom of the hole, the U-shaped positioning fork 12 of the anchor rod 3 is pre-embedded in the soil layer at the left side of the foundation pit, then the tension ring 15 is sleeved on the isolation support rod 13, then the waterproof cloth 26, the spacer net 25 and the support plate are sequentially laid on the side wall of the foundation pit, the first screw rod 10 and the second screw rod 17 sequentially penetrate through the waterproof cloth 26 and the spacer net 25, the first screw rod 10 and the second screw rod 17 respectively penetrate through the pull rod holes 23 and the guy cable holes 24 of the support guard plate 1, and the first screw cap 11 and the second screw cap 18 are respectively and spirally connected with the first screw rod 10, the left side of the support is fixed with the isolation support rod 13 through a screw 19, so that a double-layer supporting structure is manufactured.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a geotechnical engineering unilateral keeps apart excavation supporting construction, includes backplate (1), inflation soil nail (2) and stock (3), its characterized in that: inflation soil nail (2) are including four blades (4), the right-hand member fixedly connected with of blade (4) hinders pipe (5), the middle part fixedly connected with soil thorn (6) of blade (4), four blade (4) inner chamber is equipped with ball (7), the right-hand member fixedly connected with pulling force cable (8) of ball (7), and pulling force cable (8) run through the inner chamber that hinders pipe (5), the fixed cover in left part of pulling force cable (8) is equipped with hinders ring (9), and hinders the right part that ring (9) are located hinders pipe (5), the right-hand member fixedly connected with first screw rod (10) of pulling force cable (8), the surperficial screwed connection of first screw rod (10) has first nut (11).

2. The geotechnical engineering unilateral isolation foundation pit supporting structure according to claim 1, wherein: stock (3) are including U type location fork (12), top center fixedly connected with of U type location fork (12) keeps apart branch (13), keep apart branch (13) and seted up two round holes (14), the bottom cover of keeping apart branch (13) is equipped with tension ring (15), right side fixedly connected with pull rod (16) of tension ring (15), the right-hand member fixedly connected with second screw rod (17) of pull rod (16), the surperficial screwed connection of second screw rod (17) has second nut (18).

3. The geotechnical engineering unilateral isolation foundation pit supporting structure according to claim 2, wherein: the left side of isolation branch (13) runs through round hole (14) fixedly connected with division board (20) through screw (19), the both sides of division board (20) are provided with screens mouth (21).

4. The geotechnical engineering unilateral isolation foundation pit supporting structure according to claim 3, wherein: the division board (20) is PE polyethylene material, division board (20) right side and the position fixedly connected with metal nut (22) of being connected with screw (19).

5. The geotechnical engineering unilateral isolation foundation pit supporting structure according to claim 1, wherein: a pull rod hole (23) and two cable holes (24) are sequentially formed in the supporting and protecting plate (1) from top to bottom, and the second screw (17) and the first screw (10) penetrate through the pull rod hole (23) and the cable holes (24) respectively.

6. The geotechnical engineering unilateral isolation foundation pit supporting structure according to claim 1, wherein: a separation net (25) is arranged on the left portion of the supporting plate (1), and waterproof cloth (26) is arranged on the left side of the separation net (25).