CN218597179U

CN218597179U - Combined supporting structure capable of regulating deformation

Info

Publication number: CN218597179U
Application number: CN202223048717.2U
Authority: CN
Inventors: 谢小林; 翟杰群; 杨科; 方银钢; 郭晓航; 高伟; 毛明强; 万嘉成; 王沛; 贾坚
Original assignee: Architecture Design and Research Institute of Tongji University Group Co Ltd
Current assignee: Architecture Design and Research Institute of Tongji University Group Co Ltd
Priority date: 2022-11-15
Filing date: 2022-11-15
Publication date: 2023-03-10
Anticipated expiration: 2032-11-15

Abstract

The utility model discloses a can regulate and control combination formula bearing structure who warp, include: the foundation pit enclosure wall, foundation pit enclosure wall inboard is connected with the steel and buries the board, the steel buries the board and installs the one end at the steel shotcrete, the steel shotcrete is kept away from the one end of burying the board with the steel and is connected and is installed axle power controlling means, axle power controlling means still connects in one side of concrete shotcrete, concrete shotcrete support fixed connection is on the stand. The traditional supporting technology adopts a passive stress mode, and the support cannot actively increase the axial force to effectively support the foundation pit enclosure wall; in addition, the traditional supporting structure inevitably has the problems of shrinkage, creep and the like, so that the supporting axial force is lost, and the deformation of the foundation pit enclosure wall is increased. The patent discloses a supporting structure capable of actively regulating and controlling deformation and an implementation method thereof, which can effectively solve the technical problems.

Description

Combined supporting structure capable of regulating deformation

Technical Field

The utility model relates to a civil engineering technical field specifically is a combined type bearing structure of deformation can be regulated and control.

Background

In soft soil areas, the disturbance of foundation pit deformation to the surrounding environment is increasingly becoming a social concern. However, the conventional process has some defects in controlling the deformation of the foundation pit. Firstly, the traditional foundation pit adopts a construction process of firstly excavating and then supporting, namely, after soil in the pit is completely excavated, an inner support is constructed, so that the foundation pit enclosure wall is in an exposed state without a support during the supporting construction. In a soft soil area, due to the fact that a soil body has extremely strong rheological property, the rheological deformation of a foundation pit during the unsupported exposure period is often an important component of the total deformation of the foundation pit; secondly, the traditional support technology adopts a passive stress mode, namely only the foundation pit enclosure wall is horizontally deformed firstly, and the support structure can generate horizontal resistance after the internal support is horizontally extruded, and the traditional support cannot actively increase the axial force to effectively support the foundation pit enclosure wall; in addition, because traditional bearing structure inevitable exists shrink, creep scheduling problem, leads to the loss of support shaft power, and then causes the foundation ditch enclosure wall to warp the increase. Therefore, the patent discloses a supporting structure capable of actively regulating and controlling deformation and an implementation method thereof, which can effectively solve the technical problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a can regulate and control combination formula bearing structure who warp to propose in solving above-mentioned background art to the engineering of deep and big foundation ditch, because bearing structure can't avoid having shrink, creep scheduling problem, lead to the loss of support shaft power, and then cause the problem of foundation ditch enclosure wall deformation increase.

In order to achieve the above object, the utility model provides a following technical scheme: a modular support structure capable of controlled deformation, comprising: foundation ditch enclosure wall, foundation ditch enclosure wall inboard is connected with the steel and buries the board, the one end at the steel shotcrete is installed to the steel buries the board, the steel shotcrete is kept away from the one end of burying the board with the steel and is installed axle power controlling means, axle power controlling means still connects the one side at the concrete shotcrete, concrete shotcrete support fixed connection is located on the outer wall of stand foundation ditch enclosure wall inboard still is provided with the spaced reinforcement.

Preferably, the steel support, the axial force control device and the steel buried plate are arranged between the foundation pit enclosure wall and the concrete support.

Preferably, a rear side of the concrete support, which is connected with the axial force control device, is provided with a reclining member, the concrete support comprises a beam structure or a beam-slab structure, and the reclining member comprises a beam reclining member or a plate reclining member.

Preferably, a supporting plate is arranged at the joint of the end part of the concrete support and the steel support and the axial force control device, and the supporting plate is arranged at the bottom of the steel support and the axial force control device.

Preferably, the axial force control device comprises a hydraulic jack and a pressure control system, and the hydraulic jack is electrically connected with the pressure control system.

Preferably, the interval reinforcements are distributed on the inner side of the foundation pit enclosure wall at intervals, and steel supports are distributed between every two adjacent interval reinforcements. And the interval reinforcement adopts cement soil reinforcement.

Compared with the prior art, the beneficial effects of the utility model are that: the combined supporting structure capable of regulating and controlling deformation comprises:

1. according to the combined supporting structure capable of regulating deformation, the soft soil foundation pit generally adopts the step sequence of firstly excavating earthwork and then constructing and supporting, so that when supporting construction is carried out, the foundation pit enclosure wall is in an unsupported exposed state, and the deformation of a wall body occurs. The interval reinforcement provided by the patent method can always provide horizontal restraint for the foundation pit enclosure wall during pit edge support construction, and the foundation pit enclosure wall is excavated until the support layer is completely finished, so that the problem of 'firstly excavating and then supporting' in the traditional process is solved.

2. This combined support structure of adjustable deformation, concrete support construction need wait for the maintenance after accomplishing, can't provide effectual holding power before the maintenance intensity reaches the requirement. This patent proposes combination formula bearing structure, and the foundation ditch middle part adopts the concrete to support, and the hole limit adopts the foundation ditch enclosure wall. The concrete support at the middle part of the foundation pit is constructed firstly, after the concrete support at the middle part reaches the strength, the foundation pit enclosure wall at the edge of the pit is implemented, and the foundation pit enclosure wall does not need to wait for material curing, so that the foundation pit enclosure wall can be immediately propped against the foundation pit enclosure wall after the foundation pit enclosure wall is installed, and the exposure time of the foundation pit enclosure wall is shortened.

3. This can regulate and control combination formula bearing structure who warp adopts axle force controlling means back, can regulate and control foundation ditch enclosure wall axle force in real time, can effectively solve the axle force loss problem that support shrink, creep etc. lead to, be favorable to reducing the foundation ditch and warp.

4. This combined type bearing structure of can regulating and control deformation sets up behind the backing member, can improve combined type bearing structure's internal force and distribute, avoids the concrete support to protect the local destruction that the wall axle power effect produced under the foundation ditch.

5. This combined supporting structure of adjustable deformation sets up the layer board for vertical atress problem can be solved to stand among foundation ditch enclosure wall and the axial force controlling means can utilize the concrete to support, and need not additionally set up new stand to foundation ditch enclosure wall.

Drawings

Fig. 1 is a schematic view of the top view layout structure of the present invention;

FIG. 2 is a schematic view of the connection structure of the foundation pit retaining wall and the steel support of the present invention;

FIG. 3 is a schematic view of a side view structure of the foundation pit retaining wall of the present invention;

FIG. 4 is a schematic view of the connection structure of the steel support and the concrete support of the present invention;

FIG. 5 is a schematic diagram of the construction distribution diagram of the utility model S1;

FIG. 6 is a schematic diagram of the construction distribution diagram of the utility model S2;

FIG. 7 is a schematic diagram of the construction distribution diagram of the utility model S3;

fig. 8 is a schematic diagram of the S4 construction distribution diagram of the present invention.

In the figure: 1. a foundation pit enclosure wall; 2. supporting steel; 21. an axial force control device; 22. steel embedding plates; 3. supporting concrete; 30. a pallet; 31. a beam-type reclining member; 32. a plate-type reclining member; 4. a column; 5. and (5) interval reinforcement.

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 modular support structure capable of controlled deformation, comprising: foundation ditch enclosure wall 1, 1 inboard of foundation ditch enclosure wall is connected with the steel and buries board 22, the steel is buried board 22 and is installed in the one end of steel shotcrete 2, steel shotcrete 2 is kept away from the one end of being connected with steel buried board 22 and is installed axle power controlling means 21, axle power controlling means 21 still connects in one side of

concrete shotcrete

3, 3 fixed connection of concrete shotcrete is on stand 4, is located 1 inboard of foundation ditch enclosure wall still is provided with the spaced reinforcement 5.

Referring to fig. 1 and 3, the steel support 2, the axial force control device 21 and the steel embedded plate 22 are disposed between the foundation pit enclosure wall 1 and the concrete support 3, and the steel support 2, the axial force control device 21 and the steel embedded plate 22 are installed between the foundation pit enclosure wall 1 and the concrete support 3, so that the steel support 2 supports the foundation pit enclosure wall 1.

Referring to fig. 1 and 2, a reclining member is disposed at a rear side of the concrete support 3 connected to the axial force control device 21. The concrete support 3 may be of a beam or beam slab construction, the reclining members including beam reclining members 31 or plate reclining members 32, and the distribution of internal forces to the concrete support 3 may be changed by selectively using the beam reclining members 31 or the plate reclining members 32.

Referring to fig. 3, a supporting plate 30 is arranged at the joint of the end of the concrete support 3, the steel support 2 and the axial force control device 21, the supporting plate 30 is arranged at the bottom of the steel support 2 and the axial force control device 21, and the supporting plate 30 supports the steel support 2 and the axial force control device 21, so that the vertical stress problem of the steel support 2 and the axial force control device 21 on the upright post 4 is solved.

Referring to fig. 4, the axial force control device 21 includes a hydraulic jack and a pressure control system, the hydraulic jack is electrically connected to the pressure control system, and the pressure control system controls the hydraulic jack to apply an axial jacking force.

Referring to fig. 2 and 3, the interval reinforcements 5 are distributed on the inner side of the foundation pit enclosure wall 1 at intervals, steel supports 2 are distributed between two adjacent interval reinforcements 5, the interval reinforcements 5 are reinforced by cement soil, the interval reinforcements 5 are distributed at intervals, the steel supports 2 can be conveniently installed at the gaps of the interval reinforcements 5, and the foundation pit enclosure wall 1 without the steel supports 2 is preliminarily supported by the interval reinforcements 5.

The working principle is as follows: as shown in fig. 1 to 8, when the combined supporting structure capable of controlling deformation is used, the foundation pit enclosure wall 1 is firstly arranged along the outline of the earth excavation, and an underground continuous wall, a cast-in-place pile, a precast pile and a construction method pile can be adopted. Later construction concrete support 3 is located the foundation ditch middle part to keep away from foundation ditch enclosure wall 1, this concrete support 3 can adopt frame beam structure or frame beam plate structure, and set up concrete support 3 on stand 4, and the interval is consolidated 5 and is hugged closely foundation ditch enclosure wall 1 and arrange, leaves the space between every interval is consolidated 5. And the interval reinforcement 5 is reinforced by adopting cement soil. And then, arranging steel supports 2 in gaps among the interval reinforcements 5, wherein one ends of the steel supports 2 prop against the concrete supports 3, and the other ends of the steel supports 2 prop against the foundation pit enclosure wall 1. The steel support 2 can be a steel pipe support or a foundation pit enclosure wall 1. The steel support 2 is provided with an axial force control device 21 near the side end of the concrete support 3, and a reclining member is provided in the concrete support 3. The reclining component is a beam type reclining component 31 or a plate type reclining component 32, the concrete support 3 is provided with a supporting plate 30, and the steel support 2 and the axial force control device 21 are placed on the supporting plate 30. The foundation pit enclosure wall 1 is provided with the upstream steel embedded plate 22 or the steel enclosing purlin, the steel support 2 is connected with the foundation pit enclosure wall 1 through the steel embedded plate 22 or the steel enclosing purlin, the axial force control device 21 comprises a hydraulic jack and a pressure control system, axial jacking force can be applied to the steel support 2, and the pressure control system is the operating pressure of the hydraulic jack which can be used for controlling the hydraulic jack at the control background of the hydraulic jack. Set up deformation monitoring devices on foundation ditch enclosure wall 1, deformation monitoring devices can adopt automatic deviational survey pipe, automatic total powerstation, the measuring device is caught in the seizure of making a video recording, infrared ranging etc. deformation monitoring devices transmits the deformation data of measurement to axial force controlling means 21 through the mode of unlimited transmission in real time, axial force controlling means 21 can implement the axial force to 2 tip of steel shotcrete according to the deformation data and adjust, reach the purpose that initiative control supported axial force and then regulation and control warp, this is exactly this can regulate and control the characteristics of the combination formula bearing structure who warp.

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 concepts of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A modular support structure capable of controlled deformation, comprising: foundation ditch enclosure wall (1), its characterized in that: foundation ditch enclosure wall (1) inboard is connected with steel and buries board (22), the one end in steel shotcrete (2) is installed in steel shotcrete (22), steel shotcrete (2) are kept away from the one end of being connected with steel buries board (22) and are installed axial force controlling means (21), one side in concrete shotcrete (3) is still connected in axial force controlling means (21), concrete shotcrete (3) fixed connection is located on stand (4) foundation ditch enclosure wall (1) inboard still is provided with spaced reinforcement (5).

2. The controllably deformable modular support structure of claim 1, further comprising: the steel support (2), the axial force control device (21) and the steel embedded plate (22) are arranged between the foundation pit enclosure wall (1) and the concrete support (3).

3. The controllably deformable modular support structure of claim 1, further comprising: and a rear leaning component is arranged on the rear side of the concrete support (3) connected with the axial force control device (21), the leaning component comprises a beam type leaning component (31) or a plate type leaning component (32), and the concrete support (3) can adopt a beam type structure or a beam plate type structure.

4. The controllably deformable modular support structure of claim 1, further comprising: and a supporting plate (30) is arranged at the joint of the end part of the concrete support (3) and the steel support (2) and the axial force control device (21), and the supporting plate (30) is arranged at the bottom parts of the steel support (2) and the axial force control device (21).

5. The controllably deformable modular support structure of claim 1, further comprising: the axial force control device (21) comprises a hydraulic jack and a pressure control system, and the hydraulic jack is electrically connected with the pressure control system.

6. The controllably deformable modular support structure of claim 1, further comprising: interval reinforcement (5) are the inboard of interval distribution at foundation ditch enclosure wall (1), and two are adjacent it has steel shotcrete (2) to distribute between interval reinforcement (5), and interval reinforcement (5) adopt soil cement to consolidate.