Foundation pit supporting device capable of effectively preventing foundation pit from collapsing

Abstract

The utility model discloses a foundation pit supporting device capable of effectively preventing a foundation pit from collapsing, and relates to the technical field of foundation pit supporting. Comprising a plurality of steel sheet piles arranged on the four walls of a foundation pit, the steel sheet piles form a foundation pit protection wall, the inner side of the foundation pit protection wall abuts against a plurality of tightly-spliced supporting plates, upper blocking beams and lower blocking beams are arranged on the inner sides of the supporting plates, each supporting plate corresponds to a supporting base body, and the supporting base bodies are embedded in the bottom of the foundation pit; the upper blocking beam and the lower blocking beam of each supporting plate are connected with the corresponding supporting base body through a first supporting column and a second supporting column respectively. The two opposite supporting plates are connected through a supporting beam, the supporting beam is in lap joint with the top of the upper blocking beam, and the supporting beam is connected with the supporting base body through a third supporting column. The lateral support and the top transverse support are combined and complement each other, so that the strength of the support structure is improved, and the foundation pit can be effectively prevented from collapsing.

Description

Technical Field

[0001] The utility model relates to the technical field of foundation pit support, in particular to a foundation pit support device which can effectively prevent the foundation pit from collapsing. Background Art

[0002] The foundation pit is an earth pit excavated at the foundation design location according to the base elevation and foundation plane dimensions. In order to ensure the stability of the pit wall, protect the safety of the main underground project during construction and the surrounding environment from damage, foundation pit support is required. Common foundation pit supports include soil nail wall support, steel sheet pile support, cement soil wall support, and pile row support. Soil nail wall support and pile row support can provide better support effects, but the construction is difficult and the construction period is long; compared with the listed support structure, steel sheet pile support is simple to construct and has a short construction period, but the support effect is relatively poor and requires some auxiliary support devices, such as steel pipes, support beams, etc. Although the above-mentioned auxiliary support devices can improve the support strength, due to the use of point support, there are still support gaps and effective support cannot be achieved. Utility Model Content

[0003] The main purpose of the utility model is to provide a foundation pit supporting device which can effectively prevent the foundation pit from collapsing, so as to solve the above-mentioned problem.

[0004] To achieve the above-mentioned purpose, the utility model provides a foundation pit supporting device which can effectively prevent foundation pit collapse, comprising a plurality of steel sheet piles arranged on the four walls of the foundation pit, the plurality of steel sheet piles forming a foundation pit guard wall, the inner side of the foundation pit guard wall is abutted with a plurality of tightly spliced ​​support plates, the inner sides of the support plates are provided with upper guard beams and lower guard beams, each support plate corresponds to a support base, and the support base is buried in the bottom of the foundation pit; the upper guard beam and the lower guard beam of each support plate are connected to the corresponding support base through a first support column and a second support column respectively; the two opposite support plates are connected through a support beam, the support beam is overlapped on the top of the upper guard beam, and the support beam and the support base are connected through a third support column.

[0005] Furthermore, an arc groove adapted to the support beam is provided at the top of the upper guard beam; and both ends of the support beam are connected to the support plates on both sides by bolts.

[0006] Furthermore, the first support column abuts against the bottom of the upper stop beam, and the second support column abuts against the bottom of the lower stop beam.

[0007] Furthermore, the first support column, the second support column and the third support column are all hinged to the support base, and the third support column is hinged to the support beam.

[0008] Furthermore, the first support column, the second support column and the third support column are all composed of a screw rod and a screw rod sleeve.

[0009] Furthermore, support rods are installed on the tops of the first support column and the second support column.

[0010] The utility model has the following beneficial effects:

[0011] The utility model forms a stable triangular lateral support structure through the first support column, the second support column and the support plate; and forms a stable triangular top transverse support structure through the first support column, the third support column and the support beam. The two complement each other, improve the strength of the support structure, and can effectively prevent foundation pit collapse. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A schematic plan view of a foundation pit support device proposed by the utility model that can effectively prevent foundation pit collapse;

[0013] Figure 2 The utility model is a three-dimensional schematic diagram of a foundation pit supporting device which can effectively prevent foundation pit collapse.

[0014] In the figure: 1- steel sheet pile; 2- support plate; 3- support base; 4- second support column; 5- first support column; 6- third support column; 7- support rod; 8- support beam; 21- upper guard beam; 22- lower guard beam; 61- screw rod; 62- screw rod sleeve. DETAILED DESCRIPTION

[0015] In order to achieve the above-mentioned purpose and effect, the technical means and structure adopted by the utility model are described in detail with reference to the accompanying drawings for the preferred embodiments of the utility model and their features and functions.

[0016] like Figure 1-2 As shown, the utility model provides a foundation pit supporting device which can effectively prevent foundation pit collapse, including a plurality of steel sheet piles 1 arranged on the four walls of the foundation pit, the plurality of steel sheet piles 1 forming a foundation pit retaining wall, the inner side of the foundation pit retaining wall is abutted with a plurality of tightly spliced ​​support plates 2, the inner sides of the support plates 2 are provided with upper guard beams 21 and lower guard beams 22, each support plate 2 corresponds to a support base 3, and the support base 3 is buried at the bottom of the foundation pit; the upper guard beam 21 and the lower guard beam 22 of each support plate 2 are connected to the corresponding support base 3 through the first support column 5 and the second support column 4 respectively; the two opposite support plates 2 are connected through a support beam 8, the support beam 8 is overlapped on the top of the upper guard beam 21, and the support beam 8 is connected to the support base 3 through the third support column 6.

[0017] The utility model forms a stable triangular lateral support structure through the first support column 5, the second support column 4 and the support plate 2; and forms a stable triangular top transverse support structure through the first support column 5, the third support column 6 and the support beam 8. The two complement each other, improve the strength of the support structure, and can effectively prevent foundation pit collapse.

[0018] In another embodiment, the top of the upper stop beam 21 is provided with an arc groove adapted to the support beam 8, which provides a bed for the support beam 8 to facilitate the installation of the support beam 8 and improves the stability of the support beam 8. Both ends of the support beam 8 are connected to the support plates 2 on both sides by bolts.

[0019] In another embodiment, the first support column 5 abuts against the bottom of the upper stop beam 21, and the second support column 4 abuts against the bottom of the lower stop beam 22. The first support column 5, the second support column 4 and the third support column 6 are all hinged to the support base 3, and the third support column 6 is hinged to the support beam 8. The first support column 5, the second support column 4 and the third support column 6 are all composed of a screw 61 and a screw sleeve 62. The length of the first support column 5, the second support column 4 and the third support column 6 is conveniently adjusted through the threaded setting, and the first support column 5, the second support column 4 and the third support column 6 are conveniently installed through the hinge.

[0020] In another embodiment, support rods 7 are installed on the tops of the first support column 5 and the second support column 4, so that the support rods 7 increase the force-bearing area.

[0021] The above description is only the preferred embodiment of the utility model, not all embodiments. Anyone should be aware that structural changes made under the inspiration of the utility model, and all technical solutions that are the same or similar to the utility model, belong to the protection scope of the utility model.

Claims

1. A foundation pit support device that can effectively prevent foundation pit collapse, characterized in that: It comprises a plurality of steel sheet piles arranged on the four walls of the foundation pit, the plurality of steel sheet piles form a foundation pit retaining wall, the inner side of the foundation pit retaining wall is abutted against a plurality of tightly spliced ​​support plates, the inner sides of the support plates are provided with upper retaining beams and lower retaining beams, each support plate corresponds to a support base, and the support base is buried at the bottom of the foundation pit; the upper retaining beam and the lower retaining beam of each support plate are connected to the corresponding support base through a first support column and a second support column respectively; The two opposite support plates are connected via a support beam, the support beam is overlapped on the top of the upper guard beam, and the support beam is connected to the support base via a third support column.

2. A foundation pit support device capable of effectively preventing foundation pit collapse as claimed in claim 1, characterized in that: The top of the upper guard beam is provided with an arc groove matched with the support beam; the two ends of the support beam are connected to the support plates on both sides by bolts.

3. A foundation pit support device capable of effectively preventing foundation pit collapse as claimed in claim 1 or 2, characterized in that: The first support column is in contact with the bottom of the upper stop beam, and the second support column is in contact with the bottom of the lower stop beam.

4. A foundation pit support device capable of effectively preventing foundation pit collapse as claimed in claim 3, characterized in that: The first support column, the second support column and the third support column are all hinged to the support base, and the third support column is hinged to the support beam.

5. A foundation pit support device capable of effectively preventing foundation pit collapse as claimed in claim 4, characterized in that: The first support column, the second support column and the third support column are all composed of a screw rod and a screw rod sleeve.

6. A foundation pit support device capable of effectively preventing foundation pit collapse as claimed in claim 5, characterized in that: Support rods are installed on the tops of the first support column and the second support column.

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