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Underground-space steel truss foundation pit supporting structure and construction method thereof

A technology for foundation pit support and underground space, which is applied in foundation structure engineering, excavation, construction, etc., can solve problems such as water stoppage, and achieve the effect of convenient excavation, good economy, and small deformation

Inactive Publication Date: 2013-03-27
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

H-shaped steel itself has no locks, and it can only retain soil when used in foundation pit engineering, but cannot stop water

Method used

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  • Underground-space steel truss foundation pit supporting structure and construction method thereof
  • Underground-space steel truss foundation pit supporting structure and construction method thereof
  • Underground-space steel truss foundation pit supporting structure and construction method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0039] The technical scheme of the present invention is described in detail below in conjunction with accompanying drawing:

[0040] Such as Figure 1-13 As shown, an underground space steel truss foundation pit support structure is characterized in that the foundation pit is equipped with steel sheet piles 1 that are used to retain soil and water in the foundation pit, and the same side of the steel sheet pile 1 is arranged in sequence for foundation pit retaining The first H-shaped steel 2 and the second H-shaped steel 3 of the soil, the steel sheet pile 1 and the first H-shaped steel 2 are connected through a truss structure, and the first H-shaped steel 2 and the second H-shaped steel 3 are connected through a truss structure.

[0041] Such as figure 2 As shown, the truss structure of the present invention includes steel corbels 4, steel purlins 5, and steel connecting beams 6. The two ends of the steel connecting beams 6 are respectively arranged with steel purlins 5, a...

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PUM

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Abstract

The invention relates to an underground-space steel truss foundation pit supporting structure and a construction method thereof, belonging to the technical field of rock soil engineering. According to the invention, a foundation pit is provided with a steel plate pile for soil retaining and water stopping of the foundation pit synchronously; first H-type steel and second H-type steel which are used for soil retaining of the foundation pit are sequentially arranged on the same side of the steel plate pile; the steel plate pile and the first H-type steel are connected with each other through a truss structure; and the first H-type steel and the second H-type steel are connected with each other through a truss structure. The underground-space steel truss foundation pit supporting structure fulfill the purposes of being high in structure rigidity, having the functions of soil retaining and water stopping, being recyclable, not needing an inner support, and being applicable to excavation of foundation pits with deep depth and large area.

Description

[0001] technical field [0002] The invention relates to an underground space steel truss foundation pit support structure, which belongs to the technical field of geotechnical engineering. [0003] Background technique [0004] When the excavation of the foundation pit is deep and the area is large, piles plus internal support or double-row pile foundation pit support are often used. Pile plus internal support system foundation pit support type, ring beams are set on the pile top of the support piles, the overall rigidity is good, combined with the application of the internal support system, the ability to control deformation is better. However, this kind of support type has a long construction period, high engineering cost and is not conducive to earthwork excavation. [0005] The double-row pile support type refers to setting two rows of parallel piles in the foundation soil, and the front and rear rows of piles are arranged in a rectangular or quincunx shape. The tops ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D17/02E02D17/04E02D19/18
Inventor 李仁民陈晓凤王守超余巍童立元方磊
Owner SOUTHEAST UNIV
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