CN216339576U

CN216339576U - Deep foundation pit supporting structure

Info

Publication number: CN216339576U
Application number: CN202122732957.3U
Authority: CN
Inventors: 顾洪潮; 汪高锋; 周成; 张展; 孙杰烽
Original assignee: Zhejiang Shunjiang Building Group
Current assignee: Zhejiang Shunjiang Building Group
Priority date: 2021-11-09
Filing date: 2021-11-09
Publication date: 2022-04-19
Anticipated expiration: 2031-11-09

Abstract

The utility model discloses a deep foundation pit supporting structure, which comprises a retaining plate and a plurality of piles for supporting the retaining plate, wherein the left side surface and the right side surface of each pile are provided with sliding grooves, the front side surface of each pile is provided with an embedded groove, the part of the top surface of each pile, which exceeds the retaining plate, is provided with an inserting groove, the inserting groove penetrates through the rear side surface of each pile and is also communicated with the embedded groove, each pile is also connected with an upper sliding block and a lower sliding block in a sliding manner, each upper sliding block comprises two sliding parts I matched with the sliding grooves and a connecting part I, each sliding part I is provided with a bolt I, each connecting part I is fixedly provided with a connecting lug inserted into the embedded groove, a pull rod is further arranged in the embedded groove, the lower end of the pull rod is hinged with the connecting lug, the upper end of the pull rod is hinged with a first anchor pile, each lower sliding block comprises two sliding parts II matched with the sliding grooves and a connecting part II, each sliding part II is provided with a bolt II, the middle position of each connecting part II is in a concave shape entering the embedded groove and is forwards, and a support rod is further arranged in the embedded groove, the upper end of the support rod is hinged with the middle position of the second connecting part, and the lower end of the support rod is hinged with a second anchor pile.

Description

Deep foundation pit supporting structure

Technical Field

The utility model relates to a deep foundation pit, in particular to a deep foundation pit supporting structure.

Background

The deep foundation pit refers to a project with an excavation depth of more than five meters or with a complicated geological condition and surrounding environment although not more than five meters, and in order to ensure the safety of the surrounding environment of the deep foundation pit in the construction process, generally, a support is needed to be adopted for the side wall of the deep foundation pit, namely, protective measures such as retaining, reinforcing and the like are carried out. A common supporting mode is that a retaining plate is matched with a pile column, and a pull rod and a supporting rod are arranged on the pile column. The existing pile column needs to additionally disassemble the pull rod and the support rod in the assembling and disassembling processes, and the operation is inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a deep foundation pit supporting structure, which combines a pull rod and a support rod on a pile column and has the advantages of convenient disassembly and movement of the pile column.

The technical purpose of the utility model is realized by the following technical scheme:

a deep foundation pit supporting structure comprises a retaining plate and a plurality of piles for supporting the retaining plate, wherein the retaining plate is arranged in a deep foundation pit and forms a pit with the inclined side surface of the deep foundation pit, backfill soil is filled in the pit, the left side surface and the right side surface of each pile are respectively provided with a vertical sliding chute, the front side surface of each pile is provided with a vertical embedded groove, the part of the top surface, which exceeds the retaining plate, is provided with a slot, the slot penetrates through the rear side surface of the pile and is simultaneously communicated with the embedded grooves, each pile is also connected with an upper sliding block and a lower sliding block in a sliding manner, each upper sliding block comprises two sliding parts I matched with the sliding chutes and a connecting part I attached to the front side surface of the pile, each sliding part I is provided with a bolt I for fixing the sliding part I and the pile, the connecting part I is fixedly provided with a connecting lug inserted into the embedded groove, a pull rod is further arranged in the embedded groove, the lower end of the pull rod is hinged with the connecting lug, and the upper end of the pull rod is hinged with a first anchor pile, when the top shoe removed and supported the spout top, vertical pull rod can rotate backward and get into the slot, two sliding part two, the coupling part two of lower slider including the cooperation spout, be equipped with on the sliding part two with its and the fixed bolt two of stake, the intermediate position of coupling part two is the concave shape that gets into the embedded groove, and the notch is towards the front side, still is equipped with the vaulting pole in the embedded groove, and the upper end of vaulting pole is articulated with the intermediate position of coupling part two, and the lower extreme of vaulting pole articulates there is anchor pile two.

Adopt above-mentioned technical scheme, when the top shoe removed to support when the spout top, vertical pull rod can rotate backward and get into the slot, at this moment, insert anchor pile one in the soil in the deep basal pit top surface outside, give the board pulling force that keeps off the soil, rotate the bracing piece forward, make bracing piece and stake be certain angle, insert anchor pile two into the deep basal pit bottom surface again, give the board holding power that keeps off the soil, after the stake is used and is accomplished, with pull rod, bracing piece, two anchor piles income embedded grooves.

Preferably, a lower retaining piece is fixedly arranged on the front side surface of each pile at the position close to the lower part of the embedded groove, and when the anchor pile II enters the embedded groove and the bottom end of the anchor pile II abuts against the bottom surface of the embedded groove, the lower retaining piece blocks the anchor pile II.

By adopting the technical scheme, the size is reduced, the anchor pile II is stable, and the whole pile column is convenient to move.

Preferably, an upper retaining sheet is fixedly arranged on the front side surface of each pile at the position, close to the upper part, of the embedded groove, the bottom end of the anchor pile II abuts against the bottom surface of the embedded groove, and when the upper sliding block abuts against the lower sliding block, the first anchor pile enters the embedded groove, and the upper retaining sheet blocks the first anchor pile.

By adopting the technical scheme, the size is reduced, the anchor pile is stable, and the whole pile column is convenient to move.

Preferably, the cross section of the sliding chute is in a T shape, the sliding part I and the sliding part II are matched with the left and right parts of the sliding chute, and a nut I matched with the bolt I and a nut II matched with the bolt II are further arranged in the front and back parts of the sliding chute.

By adopting the technical scheme, the first bolt and the second bolt are screwed up and are compressed by the first nut, the second nut and the sliding groove, so that the movement is limited.

Preferably, the left end and the right end of the first connecting part and the second connecting part are both concave, and the first sliding part and the second sliding part are respectively positioned in the concave openings at the two ends of the first connecting part and the second connecting part and detachably connected with the first connecting part and the second connecting part.

By adopting the technical scheme, the two sliding parts I can be matched with the sliding groove, and then the two sliding parts I and the connecting part I are connected.

Drawings

FIG. 1 is a schematic view of a pile and a fender in a deep foundation pit according to an embodiment;

FIG. 2 is a schematic view showing a pull rod, a support rod and two anchor piles of the embodiment taken into an embedded groove;

FIG. 3 is a schematic view of the chute according to the embodiment.

Reference numerals: 1. a soil guard plate; 2. backfilling; 3. pile columns; 31. a chute; 32. a groove is embedded; 33. a slot; 4. an upper slide block; 41. a sliding part I; 42. a first connecting part; 421. connecting lugs; 5. a lower slide block; 51. a second sliding part; 52. a second connecting part; 6. a first bolt; 7. a first nut; 8. a pull rod; 9. anchor piles I; 10. a support bar; 11. anchor piles II; 12. a blocking piece is arranged; 13. and (6) a lower baffle plate.

Detailed Description

The following description is only a preferred embodiment of the present invention, and the protection scope is not limited to the embodiment, and any technical solution that falls under the idea of the present invention should fall within the protection scope of the present invention. It should also be noted that modifications and embellishments within the scope of the utility model may occur to those skilled in the art without departing from the principle of the utility model.

As shown in fig. 1 to 3, a deep foundation pit supporting structure includes a retaining plate 1, and a plurality of piles 3 abutting against the retaining plate 1. Each side surface of the deep foundation pit is in an inclined state, the utility model takes one side surface of the deep foundation pit as an example, the height of the retaining plate 1 is equal to 0.9-1.1 times of the depth of the deep foundation pit, the retaining plate 1 is arranged in the deep foundation pit and forms a triangular pit with the side surface of the deep foundation pit, and backfill soil 2 is filled in the pit. For convenience of description of the following orientation, the retaining plate 1 is set to the front side, and the side surface of the deep foundation pit is set to the rear side.

A plurality of piles 3 insert the bottom surface of deep basal pit to be in the front side of retaining plate 1, the cooperation backfill 2, pile 3 supports retaining plate 1, and the rear side of pile 3 and the leading flank laminating of retaining plate 1 make retaining plate 1 stable promptly. In addition, according to the depth of the deep foundation pit and the height of the retaining plate 1, the pile 3 with the proper height is selected, and after the pile 3 is inserted into the bottom surface of the deep foundation pit, the top of the pile 3 is provided with an excess part of about 20-40 CM. The left and right sides of pile 3 all are provided with vertical spout 31, and the leading flank is provided with vertical embedded groove 32, and the top surface surpasss the part that keeps off soil board 1 and is equipped with slot 33, and slot 33 pierces through the trailing flank of pile 3 and still communicates embedded groove 32 simultaneously, and slot 33 pierces through trailing flank, leading flank and the top surface of pile 3 simultaneously promptly.

Each pile 3 is also connected with an upper slide block 4 and a lower slide block 5 in a sliding way. The upper slider 4 comprises two sliding portions 41 of the matching runner 31 and a connecting portion 42 which is attached to the front side of the pile 3. Both ends all are the spill about coupling part one 42, and two sliding part one 41 are in the notch at coupling part one 42 both ends respectively to rather than dismantling the connection, can dismantle the concrete mode of connection and be: the upper and lower surfaces of the left and right ends of the first connecting part are provided with through holes, and the corresponding position of the first sliding part 41 is provided with a threaded hole. Thus, the two sliding portions 41 and the sliding groove 31 can be engaged first, and then the two sliding portions 41 and the connecting portion 42 can be connected.

The sliding part 41 is provided with a first bolt 6 for fixing the sliding part with the pile 3, namely when the upper sliding block 4 needs to slide, the first bolt 6 is loosened, and after the upper sliding block 4 is in a proper position, the first bolt 6 is screwed. In combination with the sliding groove 31, the concrete arrangement mode of the first bolt 6 is as follows: the cross section of the sliding chute 31 is T-shaped, the sliding part 41 is matched with the left and right parts of the sliding chute 31, namely the sliding part 41 is only inserted into the left and right parts of the sliding chute 31, a through hole for the bolt I6 to pass through is formed in the sliding part 41, a nut I7 matched with the bolt I6 is further arranged in the front and back parts of the sliding chute 31, and the bolt I6 passes through the sliding part 41 from the outer side and is matched with the nut I7.

The first connecting part 42 is fixedly provided with a connecting lug 421 inserted into the embedded groove 32, a vertical pull rod 8 is further arranged in the embedded groove 32, the lower end of the pull rod 8 is hinged with the connecting lug 421, and the upper end of the pull rod 8 is hinged with a first anchor pile 9. When the upper sliding block 4 moves to abut against the top of the sliding groove 31, the vertical pull rod 8 can rotate backwards and enter the slot 33, and at the moment, the first anchor pile 9 is inserted into the soil on the outer side of the top surface of the deep foundation pit to provide tension for the soil retaining plate 1.

The lower slider 5 includes two sliding portions 51 and two connecting portions 52 of the matching sliding groove 31, and the arrangement between the sliding portions 51 and the connecting portions 52 can refer to the sliding portion one 41 and the connecting portion one 42. The second sliding part 51 is provided with a second bolt for fixing the second sliding part with the pile 3, and the specific arrangement mode of the second bolt refers to the first bolt 6, namely, a second nut matched with the second bolt is also arranged in the front-back facing part of the sliding groove 31.

The intermediate position of the second connecting portion 52 is in a concave shape into the fitting groove 32 with the notch facing the front side. And a vertical support rod is further arranged in the embedded groove 32, the upper end of the support rod is hinged with the middle position of the second connecting part 52, and the lower end of the support rod is hinged with the second anchor pile 11. The supporting rod 10 is rotated forwards to enable the supporting rod 10 and the pile 3 to form a certain angle, and then the anchor pile II 11 is inserted into the bottom surface of the deep foundation pit to provide supporting force for the soil retaining plate 1.

The front side surface of the pile 3 is fixedly provided with a lower stop piece 13 at the position close to the lower part of the embedding groove 32, and the front side surface of the pile 3 is fixedly provided with an upper stop piece 12 at the position close to the upper part of the embedding groove 32. After the pile 3 is used, firstly, loosening the second bolt; then, pulling out the second anchor pile 11, rotating the support rod 10, and simultaneously moving the lower slide block 5 upwards, and finally enabling the support rod 10 and the second anchor pile 11 to enter the embedded groove 32, wherein the bottom surface of the second anchor pile 11 is higher than the lower baffle 13; then the sliding block 5 is moved downwards to enable the bottom end of the second anchor pile 11 to abut against the bottom surface of the embedded groove 32, at the moment, the lower baffle 13 blocks the second anchor pile 11, and a second bolt is screwed down; then, loosening the first bolt 6, pulling out the first anchor pile 9, and rotating the pull rod 8 to be in a vertical state; then, the upper sliding block 4 moves downwards to abut against the lower sliding block 5, at the moment, the first anchor pile 9 enters the embedded groove 32, and the upper baffle 12 blocks the first anchor pile 9; finally, the second bolt is screwed down, and the pile 3 is pulled out. The anchor bolt I and the anchor bolt II are stably positioned in the embedded groove 32, so that the whole pile 3 is convenient to move.

Claims

1. A deep foundation pit supporting structure comprises a retaining plate (1) and a plurality of piles (3) abutting against the retaining plate (1), wherein the retaining plate (1) is arranged in a deep foundation pit and forms a pit with the inclined side surface of the deep foundation pit, and backfill soil (2) is filled in the pit, the deep foundation pit supporting structure is characterized in that the left side surface and the right side surface of each pile (3) are respectively provided with a vertical sliding groove (31), the front side surface is provided with a vertical embedded groove (32), the part of the top surface exceeding the retaining plate (1) is provided with an inserting groove (33), the inserting groove (33) penetrates through the rear side surface of the pile (3) and is simultaneously communicated with the embedded groove (32), each pile (3) is also connected with an upper sliding block (4) and a lower sliding block (5) in a sliding manner, the upper sliding block (4) comprises two sliding part I (41) matched with the sliding groove (31) and a connecting part I (42) matched with the front side surface of the pile (3), the pile structure is characterized in that a first bolt (6) for fixing the first sliding part (41) and the pile (3) is arranged on the first sliding part (41), a first connecting part (42) is fixedly provided with a connecting lug (421) inserted into the embedded groove (32), a pull rod (8) is further arranged in the embedded groove (32), the lower end of the pull rod (8) is hinged to the connecting lug (421), a first anchor pile (9) is hinged to the upper end of the pull rod (8), when the upper sliding block (4) moves to abut against the top of the sliding groove (31), the vertical pull rod (8) can rotate backwards and enter the slot (33), the lower sliding block (5) comprises two sliding parts (51) and two connecting parts (52) matched with the sliding groove (31), a second bolt (51) for fixing the second sliding part and the pile (3) is arranged on the second sliding part (51), the middle position of the second connecting part (52) is in a concave shape entering the embedded groove (32), and a notch faces the front side, a supporting rod is further arranged in the embedded groove (32), the upper end of the supporting rod is hinged with the middle position of the second connecting part (52), and the lower end of the supporting rod is hinged with a second anchor pile (11).

2. The deep foundation pit supporting structure according to claim 1, wherein a lower retaining piece (13) is fixedly arranged on the front side surface of each pile (3) at the position of the lower portion of the embedded groove (32), the second anchor pile (11) enters the embedded groove (32), and when the bottom end of the second anchor pile (11) abuts against the bottom surface of the embedded groove (32), the second anchor pile (11) is retained by the lower retaining piece (13).

3. The deep foundation pit supporting structure according to claim 2, wherein an upper baffle plate (12) is fixedly arranged on the front side surface of each pile column (3) at the position close to the upper part of the embedded groove (32), the bottom end of the second anchor pile (11) is abutted against the bottom surface of the embedded groove (32), and when the upper sliding block (4) and the lower sliding block (5) are abutted against, the first anchor pile (9) enters the embedded groove (32), and the upper baffle plate (12) blocks the first anchor pile (9).

4. The deep foundation pit supporting structure according to claim 1, wherein the cross section of the sliding groove (31) is T-shaped, the sliding part I (41) and the sliding part II (51) are matched with the left and right parts of the sliding groove (31), and a nut I (7) matched with the bolt I (6) and a nut II matched with the bolt II are further arranged in the front and back parts of the sliding groove (31).

5. The deep foundation pit supporting structure according to claim 1, wherein left and right ends of the first connecting portion (42) and the second connecting portion (52) are concave, and the first sliding portion (41) and the second sliding portion (51) are respectively positioned in the concave openings at the two ends of the first connecting portion (42) and the second connecting portion (52) and detachably connected with the concave openings.