CN219586745U

CN219586745U - Foundation pit supporting device

Info

Publication number: CN219586745U
Application number: CN202223612219.6U
Authority: CN
Inventors: 肖荣军; 马威; 陈泽萍; 姜伟; 吴洪厚
Original assignee: Guangdong Foshan Geological Engineering Investigation Institute
Current assignee: Guangdong Foshan Geological Engineering Investigation Institute
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-08-25
Anticipated expiration: 2032-12-30

Abstract

The utility model discloses a foundation pit supporting device, which comprises a steel enclosing purlin and a plurality of middle pair supporting columns, wherein the steel enclosing purlin is arranged on the inner side of a wall body, the middle pair supporting columns are arranged in parallel and are respectively connected with the steel enclosing purlin through bolts, each middle pair supporting column consists of a plurality of H-shaped steel columns, the H-shaped steel columns are connected through bolts, lifting assemblies are respectively connected below the middle pair supporting columns, a group of pressure compensation assemblies are respectively arranged on the middle pair supporting columns, and a group of angle brace assemblies for reinforcing the steel enclosing purlin are respectively arranged at corners of the steel enclosing purlin; after soil pressure passes through the wall body and conveys to steel enclosing purlin, the multiunit centre balances the multiunit to strut cooperation multiunit pressure compensation subassembly, and the centre is formed by the combination of many H shaped steel posts to the strut, and is convenient during the installation, and is also more convenient during the transportation, can improve foundation ditch horizontal support structure's efficiency of construction by a wide margin, improves construction quality, shortens construction period, practices thrift construction cost.

Description

Foundation pit supporting device

Technical Field

The utility model relates to the field of electrical equipment, in particular to a foundation pit supporting device.

Background

The foundation pit support is used for ensuring the safety of underground structure construction and the surrounding environment of the foundation pit, and is used for supporting, reinforcing and protecting the side wall of the foundation pit and the surrounding environment.

The horizontal supporting system of the foundation pit comprises an anchor rod system and an inner supporting system, and the anchor rod system is generally anchored outside the foundation pit and can influence the development of adjacent land blocks; the internal support system is generally distributed in the foundation pit in the form of beams, and is supported or dismantled along with the construction progress of earth excavation and underground structures, and the internal support can be divided into reinforced concrete supports and steel supports according to materials.

The steel support that uses at present is generally round steel pipe, and wherein round steel pipe hardly assembles through the mode of standard part, carries out on-the-spot welding with non-standard part's form basically, and the operating environment of foundation ditch engineering hardly guarantees welding quality, not only influences the construction progress, has certain potential safety hazard again simultaneously. To improve this situation, a foundation pit supporting device is now provided.

Disclosure of Invention

In order to solve the problems, the utility model provides the foundation pit supporting device, when the foundation pit supporting device is used for supporting, the steel purlin can be fixed on a wall tripod, after the soil pressure is transmitted to the steel purlin through a wall, the pressure is applied to the H-shaped steel column by a supporting column and a hydraulic cylinder through the middle consisting of a plurality of H-shaped steel columns, and then the connecting columns, the connecting blocks and the corner base plates are arranged at four corners of the steel purlin, so that the strength of balancing the soil pressure of the steel purlin is further improved, and the safety of underground structure construction and surrounding environment of the foundation pit is ensured.

The utility model provides a foundation pit supporting device, which adopts the following technical scheme:

the utility model provides a foundation pit supporting device, includes that steel encloses purlin and many middle to the vaulting post, the steel encloses the purlin and arranges in the wall body inboard, and many middle to the vaulting post set up side by side and enclose purlin bolted connection with the steel respectively, every middle to the vaulting post by a plurality of H shaped steel posts constitute, through bolted connection between a plurality of H shaped steel posts, many middle all are connected with the support subassembly to the vaulting post below, are equipped with a set of pressure compensation subassembly respectively on many middle to the vaulting post, and the corner that the purlin was enclosed to the steel is equipped with a set of angle brace subassembly that is used for strengthening the steel respectively.

By adopting the technical scheme, after the soil pressure is transferred to the steel purlin through the wall body, the middle pairs of the supporting columns are matched with the pressure compensation assemblies to balance, and each lifting assembly supports the middle pairs of the supporting columns, so that the middle pairs of the supporting columns are consolidated, the corner of the steel purlin is provided with the corner support assembly, the effect of reinforcing the steel purlin is achieved, and the effect of balancing the soil pressure is achieved; the middle pair stay is formed by combining a plurality of H-shaped steel columns, so that the installation is convenient, the transportation is more convenient, the construction efficiency of the foundation pit horizontal supporting structure can be greatly improved, the construction quality is improved, the construction period is shortened, and the construction cost is saved.

Optionally, the angle brace assembly comprises a corner pad, and the corner pad is installed at the inner angle of the steel purlin and is connected with the steel purlin through bolts.

Through adopting above-mentioned technical scheme, the corner backing plate plays the effect of strengthening steel and encloses the purlin, increases the dynamics that the purlin was enclosed to the steel balanced soil pressure, guarantees the safety of underground structure construction and foundation ditch surrounding environment.

Optionally, the angle brace subassembly still includes triangle connecting block and spliced pole, and the triangle connecting block is equipped with two and the hypotenuse is forty-five degrees setting respectively, and the hypotenuse of two triangle connecting blocks encloses purlin bolted connection with the steel respectively, and the both ends of spliced pole are connected with two triangle connecting block bolted connection respectively.

Through adopting above-mentioned technical scheme, the hypotenuse of triangle connecting block is forty-five degrees settings, is favorable to the cooperation spliced pole reinforcing steel to enclose the balancing force of purlin, consolidates the steel further and encloses the purlin, and spliced pole and triangle connecting block pass through the bolt fastening simultaneously, and the installation is more convenient, can improve the efficiency of construction.

Optionally, the pressure compensation subassembly includes pneumatic cylinder and hydraulic pump, and the pneumatic cylinder is installed on middle pair stay, and the both ends of pneumatic cylinder are connected with H shaped steel stud respectively, and the hydraulic pump is installed on the wall and with wall body fixed connection.

By adopting the technical scheme, the hydraulic cylinder applies pressure to the H-shaped steel column so as to perform pressure compensation on the middle pair stay column, improve the strength of balancing the soil pressure of the middle pair stay column, and improve the construction safety.

Optionally, the lifting assembly comprises a plurality of stand columns and joists, wherein each stand column and each joist is provided with a plurality of stand columns, one end of each stand column is inserted into the soil layer, the other end of each stand column is connected with the joist, two ends of each joist are respectively connected with one stand column through bolts, and the end parts of the joists are abutted against the middle pair of struts.

Through adopting above-mentioned technical scheme, joist and stand play the effect that support middle to strut and pneumatic cylinder, guarantee the middle can support the steel purlin steadily to the strut, guarantee the safety of underground construction structure.

Optionally, in the many middle pairs of vaulting poles, two middle pairs of vaulting poles make up into a set of middle pairs of vaulting poles, are equipped with many horizontal steel posts on every middle pair of vaulting poles, and many horizontal steel posts set up side by side, and the both ends of every horizontal steel post are connected with two middle pairs of vaulting poles bolted connection respectively.

Through adopting above-mentioned technical scheme, horizontal steel column plays the effect to the stay in the middle of further fixed, simultaneously, when the pneumatic cylinder is exerted pressure to H shaped steel post, horizontal steel column can prevent middle to the stay atress deformation.

Optionally, in each group of steel columns, a positioning column and a positioning groove are respectively arranged on the end face connected with each H-shaped steel column.

Through adopting above-mentioned technical scheme, the reference column and the positioning groove that the terminal surface of connecting of every H shaped steel post set up play the effect of quick location when the installation, are favorable to tightening the bolt fast, improve installation effectiveness.

In summary, the utility model has the following beneficial effects:

1. the middle pair supporting rods of the H-shaped steel columns are arranged, so that the installation and transportation are more convenient, the construction efficiency of the foundation pit horizontal supporting structure can be greatly improved, the construction quality is improved, the construction period is shortened, and the construction cost is saved;

2. the connection of the steel purlin corner can be reinforced by arranging the corner base plate;

3. through setting up spliced pole and triangle connecting block, can enclose the purlin further reinforcement to the steel, strengthen the steel and enclose the dynamics of purlin balanced soil pressure.

4. Through setting up horizontal shaped steel, can avoid the middle to take place to warp when the pneumatic cylinder is exerted pressure to the strut, further fix the middle to the strut.

Drawings

Fig. 1 is a schematic three-dimensional structure of a foundation pit supporting device according to an embodiment of the present utility model.

Fig. 2 is a schematic view of a portion of the structure of fig. 1.

Fig. 3 is a schematic view of the structure of the hydraulic cylinder and the middle pair of struts.

Reference numerals illustrate:

1. a wall body; 11. a tripod; 2. steel purlin; 3. a middle pair of stay posts; 31. h-shaped steel column; 32. a transverse steel column; 4. a gusset assembly; 41. a corner pad; 42. a triangular connecting block; 43. a connecting column; 5. a column; 6. joist; 7. a pressure compensation assembly; 71. a hydraulic cylinder; 72. a hydraulic pump; 8. positioning columns; 9. a positioning groove; 10. and (5) a bolt.

Detailed Description

The utility model is described in further detail below with reference to fig. 1-3.

The embodiment of the utility model discloses a foundation pit supporting device, which is shown in fig. 1, and comprises a steel enclosing purlin 2 and a plurality of middle pair supporting columns 3, wherein the middle pair supporting columns 3 are arranged on the steel enclosing purlin 2 in parallel, the middle pair supporting columns 3 are connected with a plurality of groups of lifting components and a plurality of groups of pressure compensating components 7, and a group of angle supporting components 4 are respectively arranged at the corners of the steel enclosing purlin 2.

Referring to fig. 1 and 2, a steel enclosing purlin 2 is arranged on the inner side of a wall body 1, a plurality of triangular brackets 11 are arranged on the inner side of the wall body 1, the triangular brackets 11 are fixedly connected with the wall body 1 respectively, the steel enclosing purlin 2 is mounted on the triangular brackets 11 and is fixedly connected with the triangular brackets 11 respectively, a plurality of middle pair supporting columns 3 are mounted on the middle part of the steel enclosing purlin 2, and two ends of each middle pair supporting column 3 are connected with the steel enclosing purlin 2 through bolts respectively.

Referring to fig. 1 and 2, the gusset assembly 4 includes a corner pad 41, two triangular connection blocks 42 and a connection column 43, the corner pad 41 is in an isosceles right angle shape, the corner pad 41 is installed at a corner of the steel purlin 2, two right-angle edges of the corner pad 41 are respectively in bolt connection with the steel purlin 2, oblique sides of the two triangular connection blocks 42 are respectively in 45-degree arrangement, oblique sides of the two triangular connection blocks 42 are respectively in bolt connection with the steel purlin 2, and two ends of the connection column 43 are respectively in bolt connection with the triangular connection blocks 42; the corner pad 41 is used for reinforcing the steel purlin 2, and the triangular connecting block 42 and the connecting column 43 are combined to balance the soil pressure transmitted to the steel purlin 2 by the wall 1.

Referring to fig. 1 and 2, in the plurality of middle pair stay posts 3, two middle pair stay posts 3 are combined into a group, a plurality of transverse steel posts 32 are arranged on each group of middle pair stay posts 3, each transverse steel post 32 is positioned between the two middle pair stay posts 3 and is respectively in bolt connection with the two middle pair stay posts 3, each middle pair stay post 3 is composed of a plurality of H-shaped steel posts 31, a plurality of H-shaped steel posts 31 are connected through bolts, and a pressure compensation component 7 is arranged on each middle pair stay post 3; through setting up many H shaped steel posts 31, can install the middle pair stay 3 in segmentation, improved installation effectiveness, still be favorable to the transportation, set up horizontal steel post 32 in the middle of the middle pair stay 3 of every group, can protect middle pair stay 3 be difficult for the atress deformation when receiving the pressure of pressure compensation subassembly 7, in this embodiment, every middle pair stay 3 comprises three H shaped steel posts 31.

Referring to fig. 1 and 2, the lifting assembly comprises a supporting column and a supporting beam 6, the supporting beam 6 and the supporting column are provided with a plurality of supporting columns, one end of each upright 5 is fixedly connected with the supporting beam 6, the other end of each upright is inserted into a soil layer, two ends of each supporting beam 6 are respectively connected with one upright 5 through bolts, each supporting beam 6 is provided with two middle pair supporting columns 3, and the supporting beam 6 and the upright 5 are used for supporting each group of middle pair supporting assemblies.

Referring to fig. 1 and 2, the pressure compensating assembly 7 includes a hydraulic cylinder 71 and a hydraulic pump, the hydraulic cylinder 71 is installed between the H-shaped steel columns 31 and 31 on each middle pair of struts 3, two ends of the hydraulic cylinder 71 are respectively connected with the H-shaped steel columns 31 by bolts, the hydraulic pump is fixedly installed on the wall 1, and the hydraulic cylinder 71 is used for applying pressure to the H-shaped steel columns 31, thereby applying pressure to the steel enclosing purlin 2, so that the middle pair of struts 3 can balance the soil pressure born by the steel enclosing purlin 2.

Referring to fig. 2 and 3, a positioning column and a positioning groove are arranged on the end face of each H-shaped steel column 31, the positioning columns are matched with the positioning grooves, and the positioning columns and the positioning grooves are also respectively arranged on the two ends of the hydraulic cylinder 71, so that screw holes on the connecting faces of the two H-shaped steel columns 31 can be quickly positioned when the two H-shaped steel columns 31 are installed by arranging the positioning columns and the positioning grooves, and quick installation is realized.

The working principle of the foundation pit supporting device is as follows:

when foundation pit supporting installation is carried out, a plurality of triangular supports 11 are fixedly installed on a wall body 1, a steel enclosing purlin 2 is installed on a plurality of triangular supports 11, corner base plates 41, triangular connecting blocks and connecting columns 43 at four corners of the steel enclosing purlin 2 are installed, a stand column 5 and a joist 6 are assembled, H-shaped steel columns 31 on two ends of a middle pair of supporting columns 3 are respectively connected with the steel enclosing purlin 2 through bolts, and after positioning columns and positioning grooves at one end of a hydraulic cylinder 71 are aligned with positioning columns and positioning grooves on one H-shaped steel column 31, bolt fixing is carried out, and then other H-shaped steel columns 31 are installed.

The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model, and are intended to be included in the scope of the present utility model.

Claims

1. The utility model provides a foundation ditch strutting arrangement, includes steel purlin (2) and many middle pairs of stay (3), its characterized in that: the steel encloses purlin (2) and arranges in wall body (1) inboard, many middle to strut (3) parallel arrangement and enclose purlin (2) bolted connection with the steel respectively, every middle to strut (3) comprises a plurality of H shaped steel posts (31), through bolted connection between a plurality of H shaped steel posts (31), many middle all are connected with the subassembly of lifting to strut (3) below, be equipped with a set of pressure compensation subassembly (7) on many middle to strut (3) respectively, the corner that purlin (2) was enclosed to the steel is equipped with a set of angle brace subassembly (4) that are used for strengthening steel respectively to strut (2).

2. A foundation pit supporting device according to claim 1, wherein: the angle brace assembly (4) comprises a corner backing plate (41), and the corner backing plate (41) is arranged at the inner angle of the steel purlin (2) and is connected with the steel purlin (2) through bolts.

3. A foundation pit supporting device according to claim 1, wherein: the angle brace assembly (4) further comprises a triangular connecting block (42) and a connecting column (43), wherein the triangular connecting block (42) is provided with two triangular connecting blocks, the inclined edges of the triangular connecting blocks (42) are respectively arranged at forty-five degrees, the inclined edges of the triangular connecting blocks (42) are respectively connected with the steel purlin (2) through bolts, and the two ends of the connecting column (43) are respectively connected with the two triangular connecting blocks (42) through bolts.

4. A foundation pit supporting device according to claim 1, wherein: the pressure compensation assembly (7) comprises a hydraulic cylinder (71) and a hydraulic pump, wherein the hydraulic cylinder (71) is arranged on the middle pair of supporting columns (3), two ends of the hydraulic cylinder (71) are respectively connected with the H-shaped steel columns (31) through bolts, and the hydraulic pump is arranged on the wall body (1) and is fixedly connected with the wall body (1).

5. A foundation pit supporting device according to claim 1, wherein: the lifting assembly comprises upright posts (5) and joists (6), the upright posts (5) and the joists (6) are respectively provided with a plurality of upright posts, one end of each upright post (5) is inserted into a soil layer, the other end of each upright post is connected with the joists (6), two ends of each joist (6) are respectively connected with one upright post (5) through bolts, and the end parts of the joists (6) are abutted to the middle pair of struts (3).

6. A foundation pit supporting device according to claim 1, wherein: in many middle to strut (3), two middle to strut (3) make up into a set of middle to strut (3), be equipped with many horizontal steel columns (32) on every middle to strut (3), many horizontal steel columns (32) set up side by side, the both ends of every horizontal steel column (32) respectively with two middle to strut (3) bolted connection.

7. A foundation pit supporting device according to claim 1, wherein: among the H-shaped steel columns (31), the end face connected with each H-shaped steel column (31) is respectively provided with a positioning column and a positioning groove.