CN220414261U

CN220414261U - Deep foundation pit supporting structure

Info

Publication number: CN220414261U
Application number: CN202323595242.3U
Authority: CN
Inventors: 敖然; 杨士野
Original assignee: Shen Kan Engineering and Technology Corp of MCC
Current assignee: Shen Kan Engineering and Technology Corp of MCC
Priority date: 2023-12-28
Filing date: 2023-12-28
Publication date: 2024-01-30
Anticipated expiration: 2033-12-28

Abstract

The utility model relates to the technical field of earthwork, in particular to a deep foundation pit supporting structure, which comprises a plurality of steel pipe columns vertically and fixedly arranged at the pit bottom of a deep foundation pit and arranged at equal intervals along the length direction of the deep foundation pit, wherein a retaining plate is fixedly arranged between the steel pipe columns and the slope of the deep foundation pit, backfill soil is fixedly arranged between the retaining plate and the slope of the deep foundation pit, a plurality of anchor piles in one-to-one correspondence with the plurality of steel pipe columns are fixedly arranged at the top of the deep foundation pit, the top of each anchor pile extends out of the deep foundation pit, a flange is welded on the outer surface of the top of each steel pipe column, a long neck flange coaxially arranged with the steel pipe columns is fixedly connected with the flange, an anchor plate is fixedly arranged on the inner wall of the long neck flange, and anchor cables are fixedly arranged between the anchor plate and the anchor piles. The anchor cable is conveniently installed on the steel pipe column through the long neck flange and the anchor plate, the construction is simple, the anchor cable is easy to disassemble, horizontal traction is provided for the steel pipe column through the anchor pile and the anchor cable, and the steel pipe column is prevented from being stressed too much.

Description

Deep foundation pit supporting structure

Technical Field

The utility model relates to the technical field of earthwork, in particular to a deep foundation pit supporting structure.

Background

Deep foundation pit refers to an engineering where the depth of excavation is more than 5 meters (including 5 meters), or where the depth is not more than 5 meters, but where the geological conditions and surrounding environment and underground pipelines are particularly complex.

The Chinese patent document CN113668555A discloses a deep foundation pit supporting construction method of a large-pipe-diameter prestress pile, and the patent application realizes pulling of a water-stop jet grouting pile through a construction anchor rope and a section steel waist beam, so that the water-stop jet grouting pile is prevented from being stressed too much, but the section steel waist beam is complex in composition structure, and the section steel waist beam, a bearing plate, a steel backing plate, a steel inclined pad and other parts are required to be composed, so that the defects of high cost and high installation difficulty exist. In addition, the anchor cable needs to penetrate through the water-stopping jet grouting pile, and construction difficulty is high.

Disclosure of Invention

The utility model aims to provide a deep foundation pit supporting structure for solving the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a deep basal pit supporting construction, includes the perpendicular fixed pit bottom of locating the deep basal pit and along the equidistant a plurality of steel-pipe column that sets up of length direction of deep basal pit, the steel-pipe column with fixed being equipped with the retaining plate between the slope of deep basal pit, the retaining plate with fixed being equipped with the backfill between the slope of deep basal pit, the fixed a plurality of with a plurality of steel-pipe column one-to-one of top of deep basal pit, stretch out at the top of anchor pile the deep basal pit, the top surface welding of steel-pipe column has the flange, flange fixedly connected with the long neck flange of the coaxial setting of steel-pipe column, the fixed ground tackle board that is equipped with of inner wall of long neck flange, the ground tackle board with fixedly be equipped with anchor rope between the anchor pile.

Optionally, the long neck flange is close to the lateral wall of anchor stake and has been seted up the through-hole that allows the anchor rope passes through, the inner wall of long neck flange with do the circular arc transition between the ground tackle board.

Optionally, the upper surface of ground tackle board is fixed and is equipped with the sleeve pipe, the intraductal railing that is connected with of detachable of sleeve.

Optionally, the anchor plate is kept away from the terminal surface fixed first ground tackle that is equipped with of anchor stake, the anchor stake is kept away from the terminal surface fixed second ground tackle that is equipped with of anchor plate, the one end of anchor rope run through the anchor plate and with first ground tackle fixed connection, the other end of anchor rope run through the anchor stake and with second ground tackle fixed connection.

Optionally, the top of a plurality of anchor stake just is located the second ground tackle is pour together and is equipped with the concrete block outward, the bottom of concrete block downwardly extending to the inside of deep basal pit.

Optionally, an open channel is formed on the upper surface of the concrete block, the upper surface of the open channel is flush with the upper surface of the backfill, and a thin channel communicated with the open channel is formed on the side wall, away from the anchor plate, of the concrete block.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, the anchor rope is conveniently installed on the steel pipe column through the long neck flange and the anchor plate, the construction is simple, the anchor rope is easy to disassemble, and horizontal traction is provided for the steel pipe column through the anchor pile and the anchor rope, so that the steel pipe column is prevented from being stressed too much;

2. according to the utility model, the concrete blocks not only improve the installation stability of the anchor piles, but also strengthen the installation strength of the other end of the anchor cable, and in addition, the concrete blocks can form a circle on the slope top of the deep foundation pit to serve as a retaining dam, so that water at the slope top of the deep foundation pit is prevented from flowing to the pit bottom of the deep foundation pit.

Drawings

FIG. 1 is a front view of the present utility model;

FIG. 2 is an enlarged schematic view of the portion A in FIG. 1;

FIG. 3 is a top view of the present utility model;

fig. 4 is an enlarged schematic view of the portion B in fig. 3.

In the figure: 1. deep foundation pit; 2. a steel pipe column; 3. a soil retaining plate; 4. backfilling soil; 5. an anchor pile; 6. a flange; 7. a long neck flange; 8. an anchor plate; 9. an anchor cable; 10. a first anchor; 11. a through hole; 12. a second anchor; 13. a sleeve; 14. railing; 15. a concrete block; 16. open channels; 17. and (5) a thin channel.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples: referring to fig. 1 to 4, the utility model provides a deep foundation pit supporting structure, which comprises a plurality of steel pipe columns 2 vertically and fixedly arranged at the pit bottom of a deep foundation pit 1 and equidistantly arranged along the length direction of the deep foundation pit 1, a retaining plate 3 is fixedly arranged between the steel pipe columns 2 and the slope of the deep foundation pit 1, backfill soil 4 is fixedly arranged between the retaining plate 3 and the slope of the deep foundation pit 1, a plurality of anchor piles 5 which are in one-to-one correspondence with the plurality of steel pipe columns 2 are fixedly arranged at the top of the deep foundation pit 1, the top of each anchor pile 5 extends out of the deep foundation pit 1, a flange 6 is welded on the outer surface of the top of each steel pipe column 2, a long neck flange 7 coaxially arranged with the steel pipe columns 2 is fixedly connected to the flange 6, an anchor plate 8 is fixedly arranged on the inner wall of the long neck flange 7, and an anchor rope 9 is fixedly arranged between the anchor plate 8 and the anchor piles 5. The end face of the anchor plate 8 far away from the anchor pile 5 is fixedly provided with a first anchor 10, the end face of the anchor pile 5 far away from the anchor plate 8 is fixedly provided with a second anchor 12, one end of the anchor cable 9 penetrates through the anchor plate 8 and is fixedly connected with the first anchor 10, and the other end of the anchor cable 9 penetrates through the anchor pile 5 and is fixedly connected with the second anchor 12.

According to the utility model, the anchor rope 9 is conveniently installed on the steel pipe column 2 through the long neck flange 7 and the anchor plate 8, the construction is simple, the disassembly is easy, and horizontal traction is provided for the steel pipe column 2 through the anchor pile 5 and the anchor rope 9, so that the steel pipe column 2 is prevented from being stressed excessively. An anchor rope 9 is arranged above the steel pipe column 2 for traction, the bottom of the steel pipe column 2 is inserted into the pit bottom of the deep foundation pit 1, and the steel pipe column 2 is installed stably and reliably.

On the basis of the embodiment, the side wall of the long neck flange 7, which is close to the anchor pile 5, is provided with a through hole 11 for allowing the anchor rope 9 to pass through, the inner wall of the long neck flange 7 and the anchor plate 8 are in arc transition, and the arc transition improves the connection strength of the long neck flange 7 and the anchor plate 8. The upper surface of the anchor plate 8 is fixedly provided with a sleeve 13, a railing 14 is detachably connected in the sleeve 13, a safety net and a warning sign can be installed on the railing 14, and the slope top safety of the deep foundation pit 1 is improved.

On the basis of the embodiment, the top parts of the anchor piles 5 and the outer parts of the second anchors 12 are poured together to form concrete blocks 15, and the concrete blocks 15 not only improve the installation stability of the anchor piles 5, but also strengthen the installation strength of the other ends of the anchor cables 9. The bottom of the concrete block 15 extends down to the interior of the deep foundation pit 1. An open channel 16 is formed in the upper surface of the concrete block 15, the upper surface of the open channel 16 is flush with the upper surface of the backfill soil 4, a thin channel 17 communicated with the open channel 16 is formed in the side wall, away from the anchor plate 8, of the concrete block 15, and the open channel 16 is communicated with a drainage well of the deep foundation pit 1. The concrete blocks 15 can form a circle on the slope top of the deep foundation pit 1 to serve as a water retaining dam, so that water on the slope top of the deep foundation pit 1 is blocked from flowing to the pit bottom of the deep foundation pit 1, and water from outside the concrete blocks 15 can flow into the open channel 16 through the fine channels 17 and finally is converged into the drainage well.

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

Claims

1. The utility model provides a deep basal pit supporting construction, includes perpendicular fixed pit bottom of locating deep basal pit (1) and along a plurality of steel-pipe column (2) of equidistant setting of length direction of deep basal pit (1), steel-pipe column (2) with fixed be equipped with between the slope of deep basal pit (1) and keep off soil board (3), keep off soil board (3) with fixed be equipped with backfill (4) between the slope of deep basal pit (1), its characterized in that: the top of deep basal pit (1) is fixed be equipped with a plurality of steel-pipe column (2) a plurality of anchor stake (5) of one-to-one, stretch out at the top of anchor stake (5) deep basal pit (1), the top surface welding of steel-pipe column (2) has flange (6), flange (6) fixedly connected with long neck flange (7) of coaxial setting of steel-pipe column (2), the fixed ground tackle board (8) that is equipped with of inner wall of long neck flange (7), ground tackle board (8) with fixed anchor rope (9) that are equipped with between anchor stake (5).

2. The deep foundation pit supporting structure of claim 1, wherein: the long neck flange (7) is close to the side wall of the anchor pile (5) and provided with a through hole (11) for allowing the anchor cable (9) to pass through, and the inner wall of the long neck flange (7) and the anchor plate (8) are in arc transition.

3. The deep foundation pit supporting structure of claim 1, wherein: the upper surface of ground tackle board (8) is fixed and is equipped with sleeve pipe (13), can dismantle in sleeve pipe (13) and be connected with railing (14).

4. The deep foundation pit supporting structure of claim 1, wherein: the anchor pile is characterized in that a first anchor (10) is fixedly arranged on the end face, far away from the anchor pile (5), of the anchor pile (5), a second anchor (12) is fixedly arranged on the end face, far away from the anchor pile (8), of the anchor rope (9), one end of the anchor rope (9) penetrates through the anchor pile (8) and is fixedly connected with the first anchor (10), and the other end of the anchor rope (9) penetrates through the anchor pile (5) and is fixedly connected with the second anchor (12).

5. The deep foundation pit supporting structure of claim 4, wherein: and concrete blocks (15) are poured together at the tops of the anchor piles (5) and outside the second anchors (12), and the bottoms of the concrete blocks (15) extend downwards to the inside of the deep foundation pit (1).

6. The deep foundation pit supporting structure of claim 5, wherein: open channels (16) are formed in the upper surfaces of the concrete blocks (15), the upper surfaces of the open channels (16) are flush with the upper surfaces of the backfill soil (4), and the side walls of the concrete blocks (15) away from the anchor plates (8) are provided with thin channels (17) communicated with the open channels (16).