Circular foundation pit supporting structure and use method thereof

A technology of foundation pit support and support structure, which is applied in the direction of foundation structure engineering, excavation, construction, etc., and can solve problems such as delaying construction time

Active Publication Date: 2020-10-20
CHINA THREE GORGES UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, in the foundation pit support structure, concrete is still used to smear the foundation pit wall, which great...

Method used

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  • Circular foundation pit supporting structure and use method thereof
  • Circular foundation pit supporting structure and use method thereof
  • Circular foundation pit supporting structure and use method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] see Figure 1-11 , a circular foundation pit support structure, which includes a plurality of arc-shaped guard plate structures 1, and the adjacent multiple arc-shaped guard plate structures 1 are linked by hinges 3 to form a cylindrical shape that can be folded inward; adjacent The two arc-shaped guard plate structures 1 can be relatively rotated at a certain angle, and the entire support structure can be folded into a petal shape; each inner wall of the arc-shaped guard plate structure 1 is respectively fixed with a hook 6, Round holes 5 are processed at different heights of the arc-shaped guard plate structure 1; the adjacent arc-shaped guard plate structure 1 is shaped and fixed by the buckle 2 after stretching, and makes the entire support structure a stable cylindrical shape. By adopting the circular foundation pit support structure with the above structure, it can be used to support the inner wall of the foundation pit during the excavation process of the foundat...

Embodiment 2

[0051] see Figure 12 , 15 , 16, the method for using the circular foundation pit support structure to carry out foundation pit support, it includes the following steps:

[0052] Installation steps of support structure:

[0053] Step 1, carry out the excavation of preliminary foundation pit;

[0054] Step 2, when the preliminary foundation pit is dug to a certain depth, fold the support structure in the folded state on the upper part of the foundation pit to make its radius smaller, and then, use the crane, wire rope 8 and hook 6 to fold the entire folded structure The supporting structure is lifted and put into the preliminary foundation pit;

[0055] Step 3, inside the foundation pit, unfold the folded support structure again, so that the positioning protrusion 104 on the outer wall of the arc guard plate structure 1 is in contact with the inner side wall of the foundation pit, and then install the buckle 2 to the entire support structure. The support structure is fixed,...

Embodiment 3

[0059] see Figure 13 , 14 , 15, 17, when the foundation pit is stabilized, when the supporting structure needs to be removed, the removal process follows the bottom-up removal process, and the removal steps are as follows:

[0060] Step 1, loosen the nut 4 of the support structure at the bottom, remove the buckle 2, and fold the arc-shaped guard structure 1 inwardly. At this time, the entire support structure will be folded into a petal shape, and its diameter will be smaller than that of the upper support The supporting structure behind the circle;

[0061] Step 2, using the crane and the wire rope 8 to hang and connect with the folded support structure of the bottom layer, start the crane, and lift the support structure of the bottom layer out of the foundation pit;

[0062] Step 3, after the last support structure is removed, repeat steps 1 to 2;

[0063] Step 4, until all the supporting structures inside the entire foundation pit are completely dismantled and taken out...

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Abstract

The invention provides a circular foundation pit supporting structure and a use method thereof. The circular foundation pit supporting structure includes a plurality of arc-shaped protective plate structures, and adjacent multiple arc-shaped protective plate structures are linked by hinges into a cylindrical shape that can be folded inward; two adjacent arc-shaped protective plate structures can rotate at a certain angle relative to each other, and the entire supporting structure can be folded into petals; a hook is fixed on the inner side wall of each arc-shaped protective plate structure separately, and round holes are processed at different heights of the arc-shaped protective plate structure; and the adjacent arc-shaped protective plate structures are fixed by buckles after being expanded, so that the entire supporting structure is in a stable cylindrical shape. The structure can be used for effectively supporting the foundation pit during the excavation of the foundation pit, andcan be easily folded and assembled for convenient installation and arrangement of the circular foundation pit supporting structure, so as to replace the traditional construction technology of pouringconcrete for foundation pit wall protection.

Description

technical field [0001] The invention relates to the technical field of supporting structures, in particular to a circular foundation pit supporting structure and a use method thereof. Background technique [0002] Safe and fast excavation of foundation pits is a prerequisite for the rapid development of field erection of power towers, neutral poles in line construction, and bridge foundation erection. The construction has certain requirements on the depth of the foundation pit. During the excavation process of the foundation pit, the foundation pit support structure is needed to stabilize the excavated foundation pit, so as to ensure the safety of the construction personnel and the integrity of the foundation pit, and then continue to deepen the foundation pit excavation design. At present, concrete is still used in the foundation pit support structure to smear the foundation pit wall, which greatly delays the construction time. Therefore, a circular foundation pit support ...

Claims

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Application Information

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IPC IPC(8): E02D17/04
CPCE02D17/04
Inventor 董元发蒋磊张文厉刘文戎张存吉彭巍孟荣华
Owner CHINA THREE GORGES UNIV
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