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Square deep foundation pit non-build-in concrete wall supporting structure

A technology for concrete structures and concrete walls, which is applied in basic structure engineering, excavation, construction, etc., can solve problems such as increased cost and increased engineering volume, and achieve the effects of optimizing stress, improving structural stress, and saving costs.

Inactive Publication Date: 2019-09-06
中铁六局集团有限公司工程设计院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] For this reason, the embodiment of the present invention provides a square deep foundation pit without embedded concrete wall support structure to solve the problem of increased engineering quantity and increased cost due to the need for a certain embedded depth in the prior art

Method used

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  • Square deep foundation pit non-build-in concrete wall supporting structure
  • Square deep foundation pit non-build-in concrete wall supporting structure
  • Square deep foundation pit non-build-in concrete wall supporting structure

Examples

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Embodiment 1

[0029] Such as Figure 1-4 As shown, Embodiment 1 provides a square deep foundation pit without embedded concrete wall support structure, which includes four straight-line concrete walls 1 and four arc-shaped corner concrete walls 2 .

[0030] Concrete wall 1 in the straight section is grade C25, with a thickness of 300mm, double-layer bidirectional reinforcement, and the reinforcement (reinforcement ratio) is controlled according to 0.35%. The concrete model of the curved corner concrete wall 2 is the same as that of the straight section concrete wall 1, and the strength grade is the same. The thickness of the arc-shaped corner concrete wall 2 is 300mm, and the reinforcement is constructed according to 0.35%. The arc section of the arc-shaped corner concrete wall 2 is a quarter circle, and the corner radius is 1.5m. The end of the straight section concrete wall 1 is seamlessly connected with the end of the curved corner concrete wall 2, that is, the straight section concrete...

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Abstract

The embodiment of the invention discloses a square deep foundation pit non-build-in concrete wall supporting structure, and relates to the technical field of foundation pit supporting. The square deepfoundation pit non-build-in concrete wall supporting structure comprises four straight-line-segment concrete walls, four arc-shaped corner concrete walls and four angle brace steel pipes; the ends ofthe straight-line-segment concrete walls and the ends of the arc-shaped corner concrete walls are seamlessly connected; the arc-shaped segment of each arc-shaped corner concrete wall is a quarter circle, and the four straight-line-segment concrete walls and the four arc-shaped corner concrete walls constitute a square-shaped structure; and the angle brace steel pipes are horizontally arranged, and the two ends of each angle brace steel pipe are fixed to the two corresponding adjacent straight-line-segment concrete walls correspondingly. According to the square deep foundation pit non-build-inconcrete wall supporting structure, a stable space stress structure system is formed, structure stress is improved, thus the supporting structure is more stable, the requirement of the build-in depthdoes not need to be met, the engineering quantity is saved, and the cost is saved.

Description

technical field [0001] The embodiment of the present invention relates to the technical field of foundation pit support, in particular to a support structure for a square deep foundation pit without embedded concrete walls. Background technique [0002] In the field of engineering construction, square deep foundation pits are often encountered. The square foundation pit is different from the large-scale deep foundation pit in the traditional sense. Square deep foundation pits are often encountered in the construction of traffic bridge pier caps, pipe jacking projects, and receiving shaft construction. It is characterized by a large foundation pit depth and a small foundation pit area. Generally, the side length is 10-20m, or even 5~10m. When the square deep foundation pit project is located in the city, limited by site conditions, only support structures can be used to excavate vertically. According to the design regulations for foundation pit support, for vertical suppor...

Claims

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Application Information

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IPC IPC(8): E02D17/04
CPCE02D17/04
Inventor 苗金丽唐伟民崔龙涛白学丽周群
Owner 中铁六局集团有限公司工程设计院
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