Temporary steel support node structure for foundation pit

Abstract

This utility model relates to the field of underground foundation pit engineering technology, and in particular to a temporary steel support node structure for foundation pits, including uprights, bases, support connecting plates, and I-beams. This utility model, through its modular and detachable structure design, facilitates the transportation of the support node structure while enabling easy installation and disassembly during construction, achieving reusability and avoiding resource waste and environmental pollution. Furthermore, the support node structures can be assembled upwards to extend the support height, making it suitable for foundation pits of different depths. Multiple sets of adjustment holes on the uprights allow for adjustment of the position of the support connecting plates, enabling the I-beams to be positioned at a suitable support height. The number of support connecting plates on the uprights can be increased or decreased according to actual conditions to ensure the stability of the support and guarantee construction safety.

Description

Technical Field

[0001] This utility model relates to the field of underground foundation pit engineering technology, specifically to the temporary steel support node structure for foundation pits. Background Technology

[0002] With the rapid development of urban construction, there are more and more high-rise buildings and various large-scale underground facilities projects. The development and construction of these underground spaces and facilities first require large-scale deep foundation pit excavation. During the construction process, there is a risk of collapse on the side walls of the foundation pit, so temporary steel support node structures are set on the side walls of the foundation pit.

[0003] Currently, existing temporary steel support node structures for foundation pits are dismantled immediately after the underground space construction is completed. This dismantling is difficult and generates a large amount of construction waste that pollutes the environment, resulting in a significant waste of resources and poor reusability. Therefore, there is a need for a support node structure that can flexibly adjust the steel supports according to construction requirements and can be reused multiple times.

[0004] Based on this, the present invention designs a temporary steel support node structure for the foundation pit to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a temporary steel support node structure for foundation pits.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a temporary steel support node structure for foundation pits, including a pole, a base, a support connecting plate, and an I-beam. Multiple sets of adjustment holes are symmetrically opened on two adjacent sides of the front of the pole. The multiple sets of adjustment holes are equidistantly distributed on two adjacent sides of the front of the pole. The bottom end of the pole is fixedly connected to the base, and the support connecting plate is fixedly installed on the pole.

[0007] The supporting connecting plate includes an L-shaped mounting plate, an outrigger, adjusting bolts, reinforcing ribs, mounting grooves, and connecting bolts. Outriggers are fixedly connected to the bent plate of the L-shaped mounting plate, and reinforcing ribs are fixedly connected between the two outriggers. The L-shaped mounting plate is connected to the adjusting holes on the upright through four adjusting bolts. Mounting grooves are provided at the front ends of the two outriggers, and two sets of connecting bolts are symmetrically installed in the mounting grooves.

[0008] As a preferred embodiment of this utility model, the top of the upright is provided with a splicing groove, and a fixing bolt is provided at the splicing groove.

[0009] As a preferred technical solution of this utility model, the base includes a base body, a bracing plate, a splicing column, a through hole and a ground nail. The bracing plate is fixedly connected between the two extension plates of the base body, and the splicing column is fixedly installed at the lower end of the base body directly below the upright.

[0010] As a preferred embodiment of this utility model, the splicing column is provided with a through hole, and the front ends of the two extension plates of the base are movably inserted with ground nails.

[0011] As a preferred technical solution of this utility model, the splicing column at the lower end of the base is engaged with the splicing groove at the top of the upright, and the rod of the fixing bolt passes through the through hole for fixing.

[0012] As a preferred embodiment of this utility model, one end of the I-beam is assembled in the mounting groove and fixed by two sets of connecting bolts.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model features a modular and detachable support node structure design, which facilitates the transportation of the support node structure and makes it easy to install and disassemble in the construction scene, achieving the purpose of reusability and avoiding waste of resources and environmental pollution. Furthermore, the support node structures can be assembled upwards to expand the support height to suit foundation pits of different depths. Through multiple sets of adjustment holes on the uprights, the position of the support connecting plates on the uprights can be adjusted so that the I-beams can be set at a more suitable support height. Moreover, the number of support connecting plates on the uprights can be increased or decreased according to the actual situation to ensure the stability of the support and ensure construction safety. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a schematic diagram of the overall front view of the present invention;

[0017] Figure 2 This is a schematic diagram of the overall rear view structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the overall unfolded structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the overall structure of the upright pole of this utility model;

[0020] Figure 5 This is a partially enlarged structural schematic diagram of the present invention;

[0021] Figure 6 This is a partially enlarged cross-sectional view of the present invention.

[0022] Figure 7 This is a partial enlarged cross-sectional view of the upright of this utility model;

[0023] Figure 8 This is an enlarged structural diagram of the base of this utility model.

[0024] In the diagram: 1. Upright pole; 101. Adjustment hole; 102. Splicing groove; 103. Fixing bolt; 2. Base; 201. Seat body; 202. Diagonal brace plate; 203. Splicing column; 204. Through hole; 205. Ground nail; 3. Support connecting plate; 301. L-shaped mounting plate; 302. Outrigger; 303. Adjustment bolt; 304. Reinforcing rib plate; 305. Mounting groove; 306. Connecting bolt; 4. I-beam. Detailed Implementation

[0025] The following will refer to the appendix in the embodiments of this utility model. Figure 1-8 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] Example

[0027] Please see Figure 1-8 The present invention provides the following technical solution: a temporary steel support node structure for foundation pit, including a pole 1, a base 2, a support connecting plate 3 and an I-beam 4. Multiple sets of adjustment holes 101 are symmetrically opened on the two adjacent sides of the front of the pole 1. The multiple sets of adjustment holes 101 are equidistantly distributed on the two adjacent sides of the front of the pole 1. The base 2 is fixedly connected to the bottom end of the pole 1, and the support connecting plate 3 is fixedly installed on the pole 1.

[0028] The supporting connecting plate 3 includes an L-shaped mounting plate 301, an outrigger 302, adjusting bolts 303, reinforcing ribs 304, mounting grooves 305, and connecting bolts 306. Outriggers 302 are fixedly connected to the bent plate of the L-shaped mounting plate 301. Reinforcing ribs 304 are fixedly connected between the two outriggers 302. The L-shaped mounting plate 301 is connected to the adjusting holes 101 opened on the upright 1 through four adjusting bolts 303. The front end of each of the two outriggers 302 is provided with a mounting groove 305. Two sets of connecting bolts 306 are symmetrically installed at the mounting grooves 305.

[0029] Through the structural design of the above-mentioned upright 1, support connecting plate 3, and I-beam 4, the height of the support connecting plate 3 on the upright 1 can be adjusted to set it in a suitable support position, which has good flexibility. All of them adopt detachable connection, and can be installed and removed separately.

[0030] The top of the pole 1 is provided with a splicing groove 102, and a fixing bolt 103 is provided at the splicing groove 102.

[0031] The base 2 includes a base body 201, a diagonal brace 202, a splicing column 203, a through hole 204, and a ground nail 205. The diagonal brace 202 is fixedly connected between the two extension plates of the base body 201, and the splicing column 203 is fixedly installed at the lower end of the base body 201 directly below the upright 1.

[0032] The splicing column 203 has a through hole 204, and the two extension plates of the base 201 are movably inserted with ground nails 205.

[0033] By setting the splicing column 203 and two ground nails 205 on the base 2, the base 2 can be firmly fixed in the foundation pit, so that the support node structure has good stability.

[0034] The splicing column 203 at the lower end of the base 2 engages with the splicing groove 102 at the top of the upright 1, and the rod of the fixing bolt 103 passes through the through hole 204 for fixing.

[0035] By using the splicing column 203 and the splicing groove 102 opened at the top of the upright 1 for assembly design, and fixing it with fixing bolts 103, the two support node structures can be stacked upwards to be suitable for the support of foundation pits of different depths, which has good practicality.

[0036] One end of the I-beam 4 is assembled in the mounting groove 305 and fixed by two sets of connecting bolts 306.

[0037] The working principle and usage process of this utility model are as follows: In specific use, the base 2 is placed at the bottom of the foundation pit, and the splicing column 203 at the lower end of the base 2 is driven into the foundation pit. Then, the two ground nails 205 on the base 201 are also driven into the foundation pit to fix the upright 1. Similarly, corresponding support node structures are set at the corners of the foundation pit. Then, I-beams 4 of appropriate length are used to install the two ends of the I-beams 4 between the support connecting plates 3 of the corresponding support node structures, forming a protective support structure in the foundation pit. The number of support connecting plates 3 on the upright 1 can be freely increased or decreased to be set according to the depth of the foundation pit, thereby improving the stability of the support. By inserting the splicing column 203 at the lower end of the base 2 of another support node structure into the splicing groove 102 opened at the upper end of the upright 1, and fixing the splicing column 203 by passing the fixing bolt 103 through the through hole 204, the upward assembly of the two support node structures is realized, which can be adjusted according to the depth of the foundation pit, and has good flexibility.

[0038] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A temporary steel support node structure for a foundation pit, comprising uprights (1), a base (2), a support connecting plate (3), and I-beams (4), characterized in that: The upright (1) has multiple sets of adjustment holes (101) symmetrically opened on the two adjacent sides of the front. The multiple sets of adjustment holes (101) are equidistantly distributed on the two adjacent sides of the front of the upright (1). The bottom end of the upright (1) is fixedly connected to a base (2). A support connecting plate (3) is fixedly installed on the upright (1). The supporting connecting plate (3) includes an L-shaped mounting plate (301), an outrigger (302), an adjusting bolt (303), a reinforcing rib (304), a mounting groove (305), and connecting bolts (306). An outrigger (302) is fixedly connected to the bent plate of the L-shaped mounting plate (301). A reinforcing rib (304) is fixedly connected between the two outriggers (302). The L-shaped mounting plate (301) is connected to the adjusting hole (101) on the upright (1) by four adjusting bolts (303). A mounting groove (305) is opened at the front end of each of the two outriggers (302). Two sets of connecting bolts (306) are symmetrically installed at the mounting groove (305).

2. The temporary steel support node structure for the foundation pit according to claim 1, characterized in that: The top of the pole (1) is provided with a splicing groove (102), and a fixing bolt (103) is provided at the splicing groove (102).

3. The temporary steel support node structure for the foundation pit according to claim 1, characterized in that: The base (2) includes a base body (201), a bracing plate (202), a splicing column (203), a through hole (204), and a ground nail (205). The bracing plate (202) is fixedly connected between the two extension plates of the base body (201). The splicing column (203) is fixedly installed at the lower end of the base body (201) directly below the upright (1).

4. The temporary steel support node structure for the foundation pit according to claim 3, characterized in that: The splicing column (203) has a through hole (204), and the two extension plates of the base (201) are movably inserted with ground nails (205).

5. The temporary steel support node structure for the foundation pit according to claim 2, characterized in that: The splicing column (203) at the lower end of the base (2) is engaged with the splicing groove (102) at the top of the upright (1), and the rod of the fixing bolt (103) passes through the through hole (204) for fixing.

6. The temporary steel support node structure for the foundation pit according to claim 1, characterized in that: One end of the I-beam (4) is assembled in the mounting groove (305) and fixed by two sets of connecting bolts (306).

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