CN219118180U

CN219118180U - Anti-seepage supporting structure fixing device for underground building construction

Info

Publication number: CN219118180U
Application number: CN202320070426.9U
Authority: CN
Inventors: 潘宁; 张爵霖
Original assignee: Guangdong Runda Construction Engineering Co ltd
Current assignee: Guangdong Runda Construction Engineering Co ltd
Priority date: 2023-01-10
Filing date: 2023-01-10
Publication date: 2023-06-02
Anticipated expiration: 2033-01-10

Abstract

The utility model relates to the technical field of building foundation pit protection, in particular to an anti-seepage supporting structure fixing device for underground building construction; it comprises a supporting steel plate wall arranged on the side wall of the foundation pit, a baffle strip is welded on the upper part of the supporting steel plate wall, a plurality of support rods are welded between barrier strips of adjacent supporting steel plate walls, support columns are arranged at the lower ends of the middle parts of the support rods, and the support columns are cement piles perpendicular to the base surface of the foundation pit; the adjacent supporting steel plate walls are mutually supported, so that the pressure of the supporting steel plate walls in the foundation pit is prevented from being guided to the base surface, and the possibility of damaging the base surface is reduced; the support rod adopts the vertical cement piles as the support, so that the construction of the base surface by workers is not hindered, the whole support rod can form a powerful support, the collapse of peripheral civil engineering and the infiltration of underground water to a construction site are prevented, the structural appearance quality of the underground building construction is improved, the fixing effect on the support structure is achieved, and the construction safety is ensured.

Description

Anti-seepage supporting structure fixing device for underground building construction

Technical Field

The utility model relates to the technical field of building foundation pit protection, in particular to a fixing device of an anti-seepage supporting structure for underground building construction.

Background

Soil on the side wall of the foundation pit can naturally collapse into the foundation pit after the foundation pit is excavated, so that the solidification of the side wall of the foundation pit is realized by using supporting steel plates (steel sheet piles), and a reinforcing structure is generally adopted for further improving the firmness of the supporting steel plates. For example, an underground support structure for an impermeable foundation pit disclosed in chinese patent, patent No. 202123188962.9, wherein: two diagonal bracing structures are connected between the bottom plates and the corresponding supporting steel plates. For another example, chinese patent discloses a foundation pit anti-seepage supporting structure, patent No. 202122460560.3, in which: and an inclined supporting rod (equivalent to an inclined strut, similar in structure and same in function) is welded between the first connecting block and the second connecting block.

The technical proposal naturally improves the firmness of the supporting steel plate, but the following points are pointed out: the inclined support and the foundation pit basal plane which are obliquely arranged form an acute angle, and when the operations such as reinforcement welding, binding and the like of the basal plane are carried out below the inclined support, the inclined support obviously prevents the construction operation of workers. In addition, the force for supporting the supporting steel plate comes from the basal plane, and the supporting capability is not strong because the basal plane of the foundation pit is not a hardening plane.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a fixing device of an anti-seepage supporting structure for underground building construction.

The technical scheme of the utility model is as follows:

the utility model provides a seepage prevention support structure fixing device that underground construction used, it includes the support steel sheet wall that sets up at the foundation ditch lateral wall, and a joint welding has a blend stop in support steel sheet wall upper portion, has a plurality of bracing pieces between the blend stop of adjacent support steel sheet wall, and bracing piece middle part lower extreme is provided with the support column, and the support column is the cement stake of perpendicular to foundation ditch basal plane. Because the cement piles are vertically arranged, the construction of the base surface by workers is not influenced, and the workers do not influence the walking under the supporting rods. The supporting steel plate walls are mutually supported without applying force to the base surface.

In some preferred embodiments, the support rod adopts channel steel, the top of the cement pile is provided with a convex block matched with the groove type of the channel steel, and the channel steel is reversely buckled on the convex block, so that the support rod is prevented from moving.

Further, the bump is a concrete block, the top reinforcing bars of the cement pile extend into the bump, namely, the bump is directly poured at the top of the cement pile, and the bump is tightly connected with the cement pile, so that the radial stress capacity of the bump is improved.

Further, at least one cavity is arranged in the lug, a deformation space is provided for the lug, and the inner wall of the channel steel is not excessively extruded when the construction site is quenched and suddenly heated.

In some preferred embodiments, a steel plate is welded between the support rod and the barrier strip, and each support pile on the wall of the barrier strip is generally made of a steel product with superior toughness for being convenient for attaching and supporting the steel plate, so that the hardness is not high, the support rod and the barrier strip are connected by adopting the steel plate, the stress area of the end part of the support rod is increased, the pressure intensity born by the barrier strip is reduced, and the service life of the barrier strip can be prolonged.

The beneficial effects of the utility model are as follows: the adjacent supporting steel plate walls are mutually supported, so that the pressure of the supporting steel plate walls in the foundation pit is prevented from being guided to the base surface, and the possibility of damaging the base surface is reduced; the vertical cement piles are adopted as the support for the support, so that the construction of workers on the base surface is not hindered, for example, the workers can not be knocked to the head by the support rods or the cement piles when passing near the cement piles. The utility model can form powerful support, prevent the collapse of peripheral civil engineering and the infiltration of underground water to the construction site, and simultaneously promote the structure appearance quality of underground building construction, fix the supporting structure and ensure the construction safety.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a cross-sectional view taken at AA' of FIG. 1;

FIG. 3 is a cross-sectional view at BB' in FIG. 1.

In the figure, 1, supporting a steel plate wall; 2. a barrier strip; 3. a support rod; 4. a support column; 5. a bump; 6. reinforcing bars; 7. a cavity.

Detailed Description

The following is a further description of embodiments of the utility model, taken in conjunction with the accompanying drawings:

example 1

As shown in fig. 1 and 3, an anti-seepage supporting structure fixing device for underground building construction comprises supporting steel plate walls 1 arranged on the side walls of a foundation pit, a barrier strip 2 is welded on the upper parts of the supporting steel plate walls 1 together, a plurality of supporting rods 3 are welded between the barrier strips 2 of the adjacent supporting steel plate walls 1, supporting columns 4 are arranged at the lower ends of the middle parts of the supporting rods 3, and the supporting columns 4 are cement piles perpendicular to the base surfaces of the foundation pit.

Example 2

The supporting rod 3 adopts channel steel, the cement pile top is provided with the lug 5 that the cell type that cooperates the channel steel set up, and the channel steel back-off is on lug 5. The protruding blocks 5 are concrete blocks, and top reinforcing bars 6 of the cement piles extend into the protruding blocks 5. At least one cavity 7 is arranged in the protruding block 5.

Example 3

A steel plate (a construction site construction conventional means is not repeated) is welded between the support rod 3 and the barrier strip 2.

The working principle of the utility model is as follows:

the adjacent supporting steel plate walls are connected through the supporting rods in the horizontal direction, and when collapse pressure occurs to part of one supporting steel plate wall, the adjacent supporting steel plate walls cannot collapse due to reverse force provided by the other adjacent supporting steel plate walls; support is provided for the support rod through the support column (namely the cement pile) in the vertical direction, so that the support rod cannot fall to a base surface, and the overhead support rod is not easy to block walking or construction workers, thereby being beneficial to construction.

The foregoing embodiments and description have been provided merely to illustrate the principles and best modes of carrying out the utility model, and various changes and modifications can be made therein without departing from the spirit and scope of the utility model as defined in the appended claims.

Claims

1. The anti-seepage supporting structure fixing device for underground building construction comprises supporting steel plate walls arranged on the side walls of a foundation pit, wherein a barrier strip is welded on the upper parts of the supporting steel plate walls together, a plurality of supporting rods are welded between the barrier strips of adjacent supporting steel plate walls, supporting columns are arranged at the lower ends of the middle parts of the supporting rods, and the supporting columns are cement piles perpendicular to the base surface of the foundation pit; because the cement piles are vertically arranged, the construction of the base surface by workers is not influenced, and the workers do not influence the walking under the supporting rods; the supporting steel plate walls are mutually supported without applying force to the base surface.

2. The anti-seepage support structure fixing device for underground building construction according to claim 1, wherein: the bracing piece adopts the channel-section steel, and cement stake top is provided with the lug that the cell type that cooperates the channel-section steel set up, and the channel-section steel back-off is on the lug.

3. The anti-seepage support structure fixing device for underground building construction according to claim 2, wherein: the bump is a concrete block, and the top reinforcing bars of the cement piles extend into the bump.

4. A seepage-proofing supporting structure fixing device for underground building construction according to claim 3, wherein: at least one cavity is arranged in the convex block.

5. The anti-seepage support structure fixing device for underground building construction according to claim 1, wherein: and a steel plate is welded between the support rod and the barrier strip.