CN212452674U

CN212452674U - Oblique supporting structure

Info

Publication number: CN212452674U
Application number: CN202020929681.0U
Authority: CN
Inventors: 程曦; 吕琦; 陈尚荣; 何嵩婷
Original assignee: Shanghai Geological & Mineral Engineering Investigation Co ltd
Current assignee: Shanghai Geological and Mineral Engineering Survey (Group) Co.,Ltd.
Priority date: 2020-05-27
Filing date: 2020-05-27
Publication date: 2021-02-02
Anticipated expiration: 2030-05-27

Abstract

The utility model relates to an oblique bearing structure, including bearing structure body and foundation ditch, be provided with in the foundation ditch and enclose the fender side earth and use the fender pile for support the fender pile usefulness the bearing structure body sets up in the fender pile, the bearing structure body includes first layer bearing structure and second floor bearing structure, first layer bearing structure sets up in second floor bearing structure top, second floor bearing structure includes that fixed connection encloses purlin, the first bearing diagonal of a plurality of and a plurality of second bearing diagonal on the fender pile, the bottom fixed connection of first bearing diagonal and second bearing diagonal is on enclosing the purlin, first bearing diagonal and second bearing diagonal set up to first layer bearing structure lopsidedness. The utility model discloses has security and economic nature balanced effect.

Description

Oblique supporting structure

Technical Field

The utility model belongs to the technical field of the technique of building foundation ditch support and specifically relates to a slant bearing structure is related to.

Background

The foundation pit support is a retaining, reinforcing and protecting measure adopted for the side wall of the 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.

The foundation pit support is defined by the national industry standard of people's republic of China ' technical Specification for building foundation pit support ' JGJ120-2012 as follows: in order to protect the safety of the construction of the underground main body structure and the surrounding environment of the foundation pit, the foundation pit adopts the measures of temporary retaining, reinforcing, protecting and underground water controlling.

In the prior art, as shown in fig. 1, a supporting structure for a foundation pit includes a supporting structure body 4, where the supporting structure body 4 includes a first layer of supporting structure 2 and a second layer of supporting structure 3, the first layer of supporting structure 2 is located above the second layer of supporting structure 3, and the two layers are parallel to each other, and a plurality of supporting structures are provided in the second layer of supporting structure 3.

The existing design scheme has the following defects that for a foundation pit supporting system with the foundation pit excavation depth of 7-8 m, if one supporting is adopted under certain conditions, the safety coefficient is relatively low, and the reliability of the supporting system is difficult to guarantee; if two supports are adopted, the safety coefficient is overlarge, the economical efficiency is poor, and particularly, the economic waste phenomenon is more serious for a foundation pit with a large excavation area.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a slant bearing structure, it has the effect that security and economic nature are balanced more to prior art exists not enoughly.

The above object of the present invention can be achieved by the following technical solutions:

the utility model provides an oblique bearing structure, includes bearing structure body and foundation ditch, be provided with in the foundation ditch and enclose fender side earth usefulness and enclose the fender pile for support fender pile usefulness the bearing structure body sets up in the fender pile, the bearing structure body includes first layer bearing structure and second floor bearing structure, first layer bearing structure sets up in second floor bearing structure top, second floor bearing structure includes that fixed connection encloses purlin, the first bearing diagonal of a plurality of and a plurality of second bearing diagonal on enclosing the fender pile, the bottom fixed connection of first bearing diagonal and second bearing diagonal is on enclosing the purlin, first bearing diagonal and second bearing diagonal set up to first layer bearing structure lopsidedness.

Through adopting above-mentioned technical scheme, the fender pile is used for enclosing the soil of foundation ditch lateral wall and keeps off, first layer bearing structure supports the upper portion of fender pile, second floor bearing structure is used for supporting the lower part of fender pile, first layer bearing structure and second floor bearing structure combined action form the support to the fender pile, furthermore, regard first layer bearing structure as basic bearing structure, second floor bearing structure as supplementary bearing structure, connect first bearing structure and second bearing structure through first bearing diagonal and second bearing diagonal, the structural strength of bearing structure body has been guaranteed, realize reducing building material's use simultaneously through simplifying second bearing structure, reach security and economic nature balanced purpose.

The present invention may be further configured in a preferred embodiment as: first layer bearing structure includes the capping beam, the first support of a plurality of and a plurality of second support, first support with the second supports fixed connection on the capping beam, first support with the second supports mutually perpendicular fixed, a plurality of first support is parallel to each other, a plurality of the second supports are parallel to each other.

Through adopting above-mentioned technical scheme, the capping beam is supported to a plurality of first support and a plurality of second, realizes that first layer bearing structure's structural strength is great, and first support and second support mutually perpendicular are fixed, further strengthens first layer bearing structure's structural strength.

The present invention may be further configured in a preferred embodiment as: the top ends of the first inclined support and the second inclined support are fixedly connected to the joint of the first support and the second support.

Through adopting above-mentioned technical scheme, when enclosing the purlin and receive the power of fender pile lower part, on enclosing the purlin and transmitting power to first bearing diagonal and second bearing diagonal, afterwards, first bearing diagonal and second bearing diagonal transmit power to first support and second support intercombination department, support by first support and second at last with power dispersion for first bearing diagonal and second bearing diagonal can bear great power.

The present invention may be further configured in a preferred embodiment as: and concrete corbels for connecting the first layer of support structure are arranged at the top ends of the first inclined support and the second inclined support.

Through adopting above-mentioned technical scheme, the concrete bracket is used for fixing first bearing diagonal and second bearing diagonal on first layer bearing structure, and the structural strength of tie point is great.

The present invention may be further configured in a preferred embodiment as: the foundation pit bottom surface is provided with a plurality of stands that support first layer bearing structure and use, just the stand is located first support with second support intercombination department.

By adopting the technical scheme, the first layer of support structure is supported by the plurality of stand columns due to the self gravity of the first support and the second support.

The present invention may be further configured in a preferred embodiment as: the first inclined supports and the second inclined supports are symmetrically arranged around the enclosing purlin.

Through adopting above-mentioned technical scheme, the pressure that the fender post was applyed to first bearing diagonal or second bearing diagonal simultaneously can be offset in the symmetry setting, realizes that second layer bearing structure has great bearing capacity.

The present invention may be further configured in a preferred embodiment as: the second layer of support structures coincides with an orthographic projection of the first layer of support structures.

Through adopting above-mentioned technical scheme, when carrying out the degree of depth to the foundation ditch and excavating, dig the machine and support clearance between through first support and second and excavate downwards, orthographic projection coincides each other, and only first way is supported in the foundation ditch inside, saves vertical space, promotes the utilization ratio in space for be convenient for excavate downwards.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the first diagonal brace and the second diagonal brace are arranged in a circle along the side line of the surrounding purlin, so that the economic benefit is obviously saved;

2. the first inclined support and the second inclined support are obliquely arranged, so that the deadweight of the first support and the second support is offset, and vertical reinforcing bars are saved;

3. the second layer of supporting structure coincides with the orthographic projection of the first layer of supporting structure, and the inclined strut only exists at the periphery of the foundation pit, so that the vertical space is saved, and the excavation and construction are convenient.

Drawings

FIG. 1 is a schematic diagram of a prior art structure;

FIG. 2 is a schematic structural view of the present invention;

fig. 3 is an exploded view of the present invention;

fig. 4 is a schematic cross-sectional view of the present invention.

Reference numerals: 1. a foundation pit; 2. a first layer of support structure; 21. pressing a top beam; 22. a first support; 23. a second support; 3. a second layer of support structures; 31. enclosing purlins; 32. a first diagonal brace; 33. a second diagonal brace; 4. a support structure body; 5. a column; 6. concrete corbels; 7 enclosing piles.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Combine fig. 2 and fig. 3, for the utility model discloses a slant bearing structure, including bearing structure body 4 and foundation ditch 1, be provided with in the foundation ditch 1 and enclose fender side earth and use fender 7, fender 7 appearance is the rectangle framework, bearing structure body 4 passes through concrete fixed connection on fender 7, bearing structure body 4 is used for supporting fender 7, bearing structure body 4 includes first layer bearing structure 2 and second floor bearing structure 3, first layer bearing structure 2 sets up in second floor bearing structure 3 top, first layer bearing structure 2 and second floor bearing structure 3 all through concrete fixed connection on fender 7.

Combine fig. 2 and fig. 3, first layer bearing structure 2 includes capping beam 21, a plurality of first support 22 and a plurality of second support 23, first support 22 and second support 23 pass through concrete fixed connection on capping beam 21, capping beam 21 passes through concrete fixed connection in fender pile 7, capping beam 21 is rectangular frame, first support 22 and second support 23 mutually perpendicular are fixed, a plurality of first support 22 is parallel to each other, a plurality of second support 23 equidistant fixed connection is in capping beam 21's width direction, a plurality of first support 22 equidistant fixed connection is in capping beam 21's length direction, calculate according to foundation ditch 1's size to first support 22 and second support 23 quantity and interval each other and obtain.

Referring to fig. 3 and 4, a plurality of columns 5 for supporting the first layer of support structure 2 are disposed on the bottom surface of the foundation pit 1, and the columns 5 are located at the joint of the first support 22 and the second support 23.

With reference to fig. 3 and 4, the second-layer supporting structure 3 includes an enclosing purlin 31 fixedly connected to the fender pile 7, a plurality of first inclined struts 32 and a plurality of second inclined struts 33, bottom ends of the first inclined struts 32 and the second inclined struts 33 are fixedly connected to the enclosing purlin 31 through concrete, the first inclined struts 32 and the second inclined struts 33 are obliquely arranged towards one side of the first-layer supporting structure 2, top ends of the first inclined struts 32 and the second inclined struts 33 are provided with concrete corbels 6 for connecting the first-layer supporting structure 2, and top ends of the first inclined struts 32 and the second inclined struts 33 are fixedly connected to a joint of the first supports 22 and the second supports 23 through the concrete corbels 6.

Combine fig. 3 and fig. 4, a plurality of first bracing 32 and a plurality of second bracing 33 are in enclosing purlin 31 symmetry setting all around, and first bracing 32 and second bracing 33 extend and enclose purlin 31 sideline and set up the round, have got rid of middle support, and economic benefits saves obviously.

With reference to fig. 3 and 4, the orthographic projections of the second layer of supporting structure 3 and the first layer of supporting structure 2 are overlapped, so that the middle support is removed, and the vertical space is saved, thereby bringing convenience to soil excavation and construction.

The utility model discloses a theory of operation does: when surrounding purlin 31 is subjected to pressure from fender pile 7, surrounding purlin 31 transmits the pressure to a plurality of first diagonal braces 32 and a plurality of second diagonal braces 33, then first diagonal braces 32 and second diagonal braces 33 transmit the pressure to first diagonal braces 32 and second diagonal braces 33, since first diagonal braces 32 and second diagonal braces 33 are symmetrically arranged, first diagonal braces 32 and second diagonal braces 33 can offset a part of the pressure, then first diagonal braces 32 and second diagonal braces 33 transmit the pressure to capping beam 21, and capping beam 21 releases the pressure on fender pile 7.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides an oblique bearing structure, includes bearing structure body (4) and foundation ditch (1), be provided with in foundation ditch (1) and enclose fender side earth usefulness fender pile (7) for support fender pile (7) are used bearing structure body (4) set up in fender pile (7), bearing structure body (4) include first layer bearing structure (2) and second floor bearing structure (3), its characterized in that: first layer bearing structure (2) set up in second layer bearing structure (3) top, second layer bearing structure (3) include purlin (31), the first bearing diagonal of a plurality of (32) and a plurality of second bearing diagonal (33) of enclosing of fixed connection on fender pile (7), the bottom fixed connection of first bearing diagonal (32) and second bearing diagonal (33) is on enclosing purlin (31), first bearing diagonal (32) and second bearing diagonal (33) set up to first layer bearing structure (2) one side slope.

2. The diagonal support structure of claim 1, wherein: first layer bearing structure (2) are including capping beam (21), the first support of a plurality of (22) and a plurality of second support (23), first support (22) with second support (23) fixed connection is on capping beam (21), first support (22) with second support (23) mutually perpendicular is fixed, a plurality of first support (22) are parallel to each other, a plurality of second support (23) are parallel to each other.

3. The diagonal support structure of claim 2, wherein: the top ends of the first inclined support (32) and the second inclined support (33) are fixedly connected to the joint of the first support (22) and the second support (23).

4. The diagonal support structure of claim 1, wherein: and concrete corbels (6) for connecting the first layer of support structure (2) are arranged at the top ends of the first inclined supports (32) and the second inclined supports (33).

5. The diagonal support structure of claim 2, wherein: the foundation pit supporting structure is characterized in that a plurality of stand columns (5) for supporting a first layer of supporting structure (2) are arranged on the bottom surface of the foundation pit (1), and the stand columns (5) are located at the joint of the first support (22) and the second support (23).

6. The diagonal support structure of claim 1, wherein: the first inclined supports (32) and the second inclined supports (33) are symmetrically arranged around the surrounding purlin (31).

7. The diagonal support structure of claim 1, wherein: the second layer of support structures (3) coincides with the orthographic projection of the first layer of support structures (2).