CN217811061U

CN217811061U - Deep foundation pit supporting structure

Info

Publication number: CN217811061U
Application number: CN202220737112.5U
Authority: CN
Inventors: 叶全宏; 王维江; 王平; 王怀金; 苟伟; 洪波; 石耀勇; 曾孟阳
Original assignee: Chengdu Guohua Environmental Technology Co ltd
Current assignee: Chengdu Guohua Environmental Technology Co ltd
Priority date: 2022-03-31
Filing date: 2022-03-31
Publication date: 2022-11-15
Anticipated expiration: 2032-03-31

Abstract

The utility model provides a deep foundation pit supporting structure, which comprises a supporting pile, a supporting component and a bottom plate, wherein one end of the supporting component is hinged with the supporting pile, and the other end of the supporting component is hinged with the bottom plate; the supporting component comprises a telescopic rod and a pushing device, the pushing device comprises a cylinder, a screw rod, a nut, a lock sleeve, a regulating block and a connecting sleeve, one end of the cylinder is hinged to a bottom plate, the nut is embedded into an inner cavity of the cylinder, the nut is located at one end, far away from the bottom plate, of the cylinder, the lock sleeve is arranged at one end of the cylinder, the lock sleeve is used for fixing the nut, one end of the screw rod can be slidably arranged in the cylinder, the screw rod is in threaded connection with the nut, the lock sleeve is arranged on the screw rod, the regulating block is arranged at one end, far away from the bottom plate, of the regulating block, the end, far away from the screw rod, of the regulating block is connected with the connecting sleeve in a rotating mode, and one end, far away from the regulating block, of the connecting sleeve is connected with the telescopic rod. The problem of most diagonal bracing piece not only structure complicacy, the angle that supports when having the use moreover and length are inconvenient to be adjusted etc is solved.

Description

Deep foundation pit supporting structure

Technical Field

The utility model relates to a excavation supporting technical field particularly, relates to a deep basal pit supporting construction.

Background

The deep foundation pit refers to a project which has an excavation depth of more than 5 meters (including 5 meters), or has a depth of less than 5 meters, but has particularly complicated geological conditions, surrounding environments and underground pipelines. The deep foundation pit support is a measure of supporting, reinforcing and protecting the side wall of the deep foundation pit and the surrounding environment in order to ensure the safety of the construction of an underground structure and the surrounding environment of the foundation pit. Without a reliable supporting system, the excavation of the deep foundation pit inevitably affects adjacent buildings or structures, and even causes accidents of surface collapse, structural collapse and the like in severe cases. Particularly in a soft soil area with high underground water level and complex surrounding environment, a row pile supporting structure is generally adopted under the condition that supporting structures such as cement soil and soil nailing walls cannot meet the safety requirements of a foundation pit, and U-shaped supporting steel plates are alternately supported on the inner side and the outer side of a supporting pile, so that the anti-seepage performance of the supporting pile is improved, the anti-bending performance of the supporting pile is enhanced, but in actual construction, along with the increase of the excavation depth, the depth of the supporting pile embedded into the soil is lower and lower, and then supporting needs to be carried out by arranging an inclined supporting piece or a pushing piece, but most of the inclined supporting pieces are not only complex in structure, but also the supporting angle and the supporting length are adjusted when the inclined supporting pile is inconvenient to use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a deep basal pit supporting construction, it has solved when setting up diagonal brace piece, and most of diagonal brace piece not only structure is complicated, has the inconvenient regulation scheduling problem of angle and the length that supports when using moreover.

The embodiment of the utility model discloses a realize through following technical scheme: a deep foundation pit supporting structure comprises supporting piles, a supporting assembly and a bottom plate, wherein one end of the supporting assembly is hinged with the supporting piles, and the other end of the supporting assembly is hinged with the bottom plate;

the supporting component comprises a telescopic rod and a pushing device, one end of the telescopic rod is hinged to the supporting pile, the other end of the telescopic rod is connected with the pushing device, the pushing device comprises a cylinder, a screw rod, a nut, a lock sleeve, an adjusting block and a connecting sleeve, one end of the cylinder is hinged to the bottom plate, the nut is embedded into the inner cavity of the cylinder, the nut is located at one end, far away from the bottom plate, of the cylinder, the lock sleeve is arranged at one end of the cylinder, the lock sleeve is used for fixing the nut, one end of the screw rod is slidably arranged in the cylinder, the screw rod is in threaded connection with the nut, the lock sleeve is sleeved on the screw rod, the adjusting block is arranged at one end, far away from the bottom plate, of the adjusting block, far away from the screw rod, is rotationally connected with the connecting sleeve, and one end, far away from the adjusting block, of the connecting sleeve is connected with the telescopic rod.

Further, the telescopic link includes rod sleeve, slide bar and adjusting sleeve, rod sleeve one end with the fender pile is articulated, the adjusting sleeve sets up the rod sleeve is kept away from fender pile one end, slide bar one end slidable sets up in the rod sleeve, the slide bar other end passes the adjusting sleeve with adapter sleeve threaded connection, run through on the lateral wall of adjusting sleeve and seted up first lockhole, a plurality of second lockholes have been seted up at the pole body of slide bar interval, the slide bar adaptation is in simultaneously first lockhole with bolted connection in the second lockhole is in on the rod sleeve.

Furthermore, a conical head is arranged at one end of the supporting pile, a plurality of first fixing grooves are formed in the other end of the supporting pile in a surrounding mode, a first bolt is embedded into the first fixing grooves, and the first bolt is hinged to the rod sleeve.

Furthermore, a second fixing groove is formed in the bottom plate, a second bolt is embedded into the second fixing groove, and the second bolt is hinged to the cylinder barrel.

Furthermore, the lateral wall of regulating block is run through and is seted up the regulation hole, it wears to be equipped with the regulation pole to slide on the regulation hole.

Furthermore, a plurality of sawtooth grooves are formed in the bottom of the bottom plate.

Furthermore, a plurality of auxiliary fixing holes are formed in the bottom plate in a surrounding mode, and anchor rods are arranged on the auxiliary fixing holes.

Furthermore, one end of the screw rod, which is far away from the adjusting block, is provided with a first baffle ring.

Furthermore, a second retaining ring is arranged at one end, far away from the connecting sleeve, of the sliding rod.

The utility model discloses technical scheme has following advantage and beneficial effect at least:

the utility model has reasonable design and simple structure, and relates to a deep foundation pit supporting structure which comprises a supporting pile, a supporting component and a bottom plate, wherein one end of the supporting component is hinged with the supporting pile, and the other end of the supporting component is hinged with the bottom plate; the supporting component comprises a telescopic rod and a pushing device, one end of the telescopic rod is hinged to the supporting pile, the other end of the telescopic rod is connected with the pushing device, the pushing device comprises a cylinder barrel, a screw rod, a nut, a lock sleeve, an adjusting block and a connecting sleeve, the length of the supporting component is adjusted in a large range by the telescopic rod, and the pushing device is used for adjusting the length in a small range and applying large thrust. And then realize the support of a fender pile, it is not only simple and convenient, need not realize the support to a fender pile with the help of other machinery or manpower simultaneously, improved work efficiency. And when the whole supporting structure is recovered, the operation steps are reversely executed.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural view of a deep foundation pit supporting structure provided by the present invention;

fig. 2 is a top view of a bottom plate of a deep foundation pit supporting structure provided by the present invention;

fig. 3 is a schematic structural view of a deep foundation pit supporting structure supporting assembly provided by the present invention;

an icon: 1. the supporting pile comprises a supporting pile body 101, a conical head 102, a first fixing groove 103, a first bolt 2, a bottom plate 201, a second fixing groove 202, a second bolt 203, a sawtooth groove 204, an anchor rod 3, a telescopic rod 301, a sleeve 302, a sliding rod 303, an adjusting sleeve 304, a first locking hole 305, a second locking hole 306, a second retaining ring 4, a pushing device 401, a cylinder barrel 402, a screw rod 403, a nut 404, a locking sleeve 405, an adjusting block 406, a connecting sleeve 407, an adjusting hole 408, an adjusting rod 409 and a first retaining ring.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that, if the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear based on the directions or positional relationships shown in the drawings, or the directions or positional relationships that the products of the present invention are usually placed when used, it is only for convenience of description and simplification of the present invention, and it is not intended to indicate or suggest that the indicated device or element must have a specific direction, be constructed and operated in a specific direction, and therefore, it should not be understood as a limitation of the present invention.

In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Examples

Referring to fig. 1 to 3, the present embodiment provides a deep foundation pit supporting structure, including a supporting pile 1, a supporting component and a bottom plate 2, where one end of the supporting component is hinged to the supporting pile 1, and the other end of the supporting component is hinged to the bottom plate 2;

the supporting component comprises an expansion link 3 and a pushing device 4, one end of the expansion link 3 is hinged to the supporting pile 1, the other end of the expansion link 3 is connected with the pushing device 4, the pushing device 4 comprises a cylinder 401, a screw 402, a nut 403, a lock sleeve 404, an adjusting block 405 and a connecting sleeve 406, one end of the cylinder 401 is hinged to the bottom plate 2, the nut 403 is embedded into an inner cavity of the cylinder 401, the nut 403 is located at one end, away from the bottom plate 2, of the cylinder 401, the lock sleeve 404 is arranged at one end of the cylinder 401, the lock sleeve 404 is used for fixing the nut 403, one end of the screw 402 is slidably arranged in the cylinder 401, the screw 402 is in threaded connection with the nut 403, the lock sleeve 404 is sleeved on the screw 402, the adjusting block 405 is arranged at one end, away from the bottom plate 2, of the adjusting block 405 is rotatably connected with the connecting sleeve 406, and one end, away from the adjusting block 405, of the connecting sleeve 406 is connected with the expansion link 3. An adjusting hole 407 is formed through the side wall of the adjusting block 405, and an adjusting rod 408 is slidably arranged through the adjusting hole 407. The end of the screw 402 remote from the adjusting block 405 is provided with a first stop ring 409. As shown in fig. 1 and 3, before the construction of a deep foundation pit, firstly, a U-shaped supporting steel plate is embedded into the ground, then, supporting piles 1 are alternately driven into the inner side and the outer side of the U-shaped supporting steel plate, then, different supporting piles 1 are respectively supported at different angles along with the continuous increase of the excavation depth, in the specific implementation, a bottom plate 2 is roughly arranged on the bottom surface of the supporting pile 1 in the corresponding direction according to the supporting direction of the supporting pile 1, the supporting position of the bottom plate 2 is ensured to be stable and not to slip, then, a telescopic rod 3 of a supporting assembly and a connecting sleeve 406 of a thruster 4 are connected, the length of the telescopic rod 3 is roughly adjusted and fixed, then, the thruster 4 is hinged with the bottom plate 2 and the telescopic rod 3 is hinged with the supporting pile 1, after the position of the bottom plate 2 is adjusted again, the thruster 4 is further adjusted, an adjusting block 405 is rotated by an adjusting rod 408 to screw the bolt 402 out of the inner part of the telescopic rod 401, a first retaining ring 409 is arranged at one end of the bolt 402 far away from the adjusting block 405, the bolt 402 can be prevented from falling off from the nut 403, the bolt 402 is arranged to be embedded in the cylinder barrel, the nut 403 is further arranged to be matched with the bolt 402, the length of the telescopic rod 402, the telescopic rod 402 is ensured to be larger than the length of the supporting pile 1, and the telescopic rod 402 is increased, and the supporting pile 402 is further increased, and the length of the supporting pile 1 is increased, and the supporting pile 402 is increased. And then realize the support of a fender pile 1, not only simple and convenient, need not realize the support to a fender pile 1 with the help of other machinery or manpower simultaneously, improved work efficiency. And when the whole supporting structure is recovered, the operation steps are reversely executed.

The telescopic rod 3 comprises a rod sleeve 301, a sliding rod 302 and an adjusting sleeve 303, one end of the rod sleeve 301 is hinged to the supporting pile 1, the adjusting sleeve 303 is arranged at one end, away from the supporting pile 1, of the rod sleeve 301, one end of the sliding rod 302 is slidably arranged in the rod sleeve 301, the other end of the sliding rod 302 penetrates through the adjusting sleeve 303 and is in threaded connection with the connecting sleeve 406, a first locking hole 304 is formed in the side wall of the adjusting sleeve 303 in a penetrating mode, a plurality of second locking holes 305 are formed in the rod body of the sliding rod 302 at intervals, and the sliding rod 302 is simultaneously matched with bolts in the first locking hole 304 and the second locking holes 305 and is connected onto the rod sleeve 301. The end of the sliding rod 302 away from the connecting sleeve 406 is provided with a second retaining ring 306. As shown in fig. 1 and 3, before supporting, the approximate supporting length of the supporting component needs to be adjusted, in specific implementation, the sliding rod 302 is pulled out from the steel sleeve 301, the second stop ring 306 is arranged at one end of the sliding rod 302 far away from the connecting sleeve 406, the sliding rod 302 can be prevented from falling off from the rod sleeve 301, the length of the telescopic rod 3 can be adjusted according to the approximate required length, after the extending length of the sliding rod 302 of the telescopic rod 3 is approximately adjusted, the corresponding second lock hole 305 on the sliding rod 302 is aligned with the first lock hole 304 on the adjusting sleeve 303, then bolts are inserted and fixed on the first lock hole 304 and the second lock hole 305, and further the length of the telescopic rod 3 is kept constant. The telescopic rod 3 is used for adjusting the length of the supporting component in a large range, and the pushing device 4 is used for adjusting the length in a small range and applying large thrust.

Conical head 101 has been seted up to a fender pile 1 one end, and a fender pile 1 other end encircles and is provided with a plurality of first fixed recesses 102, and the embedding is provided with first bolt 103 in first fixed recess 102, and first bolt 103 is articulated with rod sleeve 301. As shown in fig. 1 and 3, in specific implementation, when the telescopic rod 3 is connected with the support pile 1, the first pin 103 is hinged to the telescopic rod 3, and then the first pin 103 is inserted into the first fixing groove 102 in the corresponding direction of the support pile 1. Meanwhile, only one group of supporting components supported by the supporting piles 1 which are possibly partial can not be supported stably, and then a plurality of supporting components can be matched and are respectively connected with the different first fixing grooves 102 on the supporting piles 1 and supported, and the supporting components can be quickly connected with the supporting piles 1 through the matching of the first bolts 103 and the first fixing grooves 102, and meanwhile, when the supporting components are adjusted and detached, the supporting piles are very convenient and fast. For convenient use, the first pin 103 is hinged with the rod sleeve 301, so that the first pin does not need to be separated, and the support rod 3 can be connected with the support pile 1 more quickly when the support pile is used.

The bottom plate 2 is provided with a second fixing groove 201, a second bolt 202 is embedded in the second fixing groove 201, and the second bolt 202 is hinged to the cylinder 401. As shown in fig. 1-3, in the specific implementation, when the pushing device of the telescopic assembly is connected to the base plate, the second pin 202 is hinged to the cylinder 401, and then the second pin 202 is inserted into the second fixing groove 201 of the base plate 2, so as to achieve the fast connection between the support assembly and the base plate 2, and when the support assembly is removed, the second pin 202 is directly extracted from the second fixing groove 201, which is not only convenient to use, but also improves the working efficiency. When the bolt is detached, the second bolt 202 does not need to be detached from the steel cylinder 401 and is hinged to the steel cylinder 401 for the convenience of next use.

The bottom of the bottom plate 2 is provided with a plurality of sawtooth grooves 203.

A plurality of auxiliary fixing holes are arranged on the bottom plate 2 in a surrounding manner, and anchor rods 204 are arranged on the auxiliary fixing holes. As shown in fig. 1-3, during the concrete implementation, a plurality of sawtooth grooves 203 are opened at the bottom of the bottom plate 2, the contact area with soil can be increased, and then the friction force is increased, so that the supporting stability of the bottom plate 2 is increased, when the soil quality at the supporting position of the bottom plate 2 is not good enough and is soft, the anchor rods 204 can be driven into a plurality of auxiliary fixing holes on the bottom plate 2, the anchor rods 204 are embedded into the ground, the supporting stability of the bottom plate 2 is further increased, and the bottom plate 2 is prevented from slipping or moving, so that the supporting of the support pile 1 is not affected.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a deep basal pit supporting construction which characterized in that: the pile supporting and protecting device comprises supporting piles (1), a supporting component and a bottom plate (2), wherein one end of the supporting component is hinged with the supporting piles (1), and the other end of the supporting component is hinged with the bottom plate (2);

the supporting component comprises an expansion link (3) and a pushing device (4), one end of the expansion link (3) is hinged to the supporting pile (1), the other end of the expansion link (3) is connected with the pushing device (4), the pushing device (4) comprises a cylinder barrel (401), a screw rod (402), a nut (403), a lock sleeve (404), an adjusting block (405) and a connecting sleeve (406), one end of the cylinder barrel (401) is hinged to the bottom plate (2), the nut (403) is embedded in an inner cavity of the cylinder barrel (401), the nut (403) is located at one end, far away from the bottom plate (2), of the cylinder barrel (401), the lock sleeve (404) is arranged at one end of the screw rod (401), the lock sleeve (404) is used for fixing the nut (403), one end of the screw rod (402) is slidably arranged in the cylinder barrel (401), the screw rod (402) is in threaded connection with the nut (403), the lock sleeve (404) is sleeved on the screw rod (402), the adjusting block (405) is arranged at one end, far away from the connecting sleeve (402), one end of the adjusting block (405) is connected with the adjusting block (405), and the adjusting block (405) is connected with the adjusting block (406) And (4) connecting.

2. The deep foundation pit supporting structure according to claim 1, wherein the telescopic rod (3) comprises a rod sleeve (301), a sliding rod (302) and an adjusting sleeve (303), one end of the rod sleeve (301) is hinged to the supporting pile (1), the adjusting sleeve (303) is arranged at one end, away from the supporting pile (1), of the rod sleeve (301), one end of the sliding rod (302) is slidably arranged in the rod sleeve (301), the other end of the sliding rod (302) penetrates through the adjusting sleeve (303) to be in threaded connection with the connecting sleeve (406), a first locking hole (304) penetrates through a side wall of the adjusting sleeve (303), a plurality of second locking holes (305) are formed in a rod body of the sliding rod (302) at intervals, and the sliding rod (302) is simultaneously matched with bolts in the first locking hole (304) and the second locking hole (305) and connected to the rod sleeve (301).

3. A deep foundation pit supporting structure according to claim 2, wherein one end of the supporting pile (1) is provided with a conical head (101), the other end of the supporting pile (1) is provided with a plurality of first fixing grooves (102) in a surrounding manner, a first bolt (103) is embedded in the first fixing grooves (102), and the first bolt (103) is hinged with the rod sleeve (301).

4. A deep foundation pit supporting structure according to claim 2, wherein a second fixing groove (201) is formed in the bottom plate (2), a second bolt (202) is embedded in the second fixing groove (201), and the second bolt (202) is hinged with the cylinder barrel (401).

5. The deep foundation pit supporting structure according to claim 1, wherein an adjusting hole (407) is formed through a side wall of the adjusting block (405), and an adjusting rod (408) is slidably inserted through the adjusting hole (407).

6. The deep foundation pit supporting structure according to claim 1, wherein the bottom of the bottom plate (2) is provided with a plurality of sawtooth grooves (203).

7. A deep foundation pit supporting structure according to claim 6, wherein a plurality of auxiliary fixing holes are formed around the bottom plate (2), and anchor rods (204) are arranged on the plurality of auxiliary fixing holes.

8. The deep foundation pit supporting structure according to claim 1, wherein one end of the screw rod (402) far away from the adjusting block (405) is provided with a first stop ring (409).

9. A deep foundation pit supporting structure according to claim 2, wherein the end of the slide bar (302) remote from the connecting sleeve (406) is provided with a second retaining ring (306).