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Recyclable prestress supporting system and construction method

A technology of prestressed and prestressed structures, applied in excavation, foundation structure engineering, sheet pile walls, etc., can solve problems such as difficult to recover costs, support components that cannot be recovered, and deformation that is difficult to control, so as to reduce costs and avoid repeated invalidation Transport, improve the effect of bending resistance

Pending Publication Date: 2021-10-22
SHENZHEN YJY BUILDING TECH +1
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Problems solved by technology

[0003] During the construction of the pipe gallery project, it is necessary to construct concrete support structures on both sides of the pipe gallery to achieve the support effect. The support components cannot be recycled after the construction is completed, and the existing support components are often For passive support, its deformation is difficult to control. In order to ensure a better support effect, the cross-section of the support components is often designed with a larger size, which further increases the cost that is difficult to recover

Method used

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  • Recyclable prestress supporting system and construction method
  • Recyclable prestress supporting system and construction method
  • Recyclable prestress supporting system and construction method

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Embodiment

[0068] Refer below Figure 1-Figure 6 The recyclable prestressed support system and construction method of a specific embodiment of the present invention are described.

[0069] The recoverable prestressed support system of this embodiment includes two rows of enclosure structures, two crown beams 3 , a bridge-type prestressed support system 4 , a first prestressed structure 2 and a second prestressed structure 5 .

[0070] Two rows of enclosure structures are arranged at intervals on both sides of the foundation pit, and each row of enclosure structures includes a plurality of retrievable support piles 1 that are sequentially engaged, and each retrievable support pile 1 is provided with a first prestressed structure 2. A crown beam 3 is connected to a plurality of recoverable support piles 1 of each row of enclosure structures, and a first prestressed structure 2 is arranged inside the crown beam 3 . The recyclable support pile 1 includes a recyclable steel pipe 11 and plas...

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Abstract

The invention discloses a recyclable prestress supporting system and a construction method, and relates to the technical field of foundation pit engineering. The recyclable prestress supporting system comprises two rows of enclosure structures, two top beams and a bridge type prestress supporting system. The two rows of enclosure structures are arranged on the two sides of a foundation pit at intervals, each row of enclosure structure comprises a plurality of recyclable supporting piles which are sequentially engaged, and a first prestress structure is arranged in each recyclable supporting pile. One top beam is connected to the multiple recyclable supporting piles of each row of enclosure structures, and the corresponding first prestress structure is arranged in the top beam. The two ends of the bridge type prestress supporting system are arranged on the top beams respectively and connected with the top beams, the bridge type prestress supporting system is provided with a bearing face used for bearing a soil body, and a second prestress structure is arranged in the bridge type prestress supporting system. The recyclable prestress supporting system can reduce the construction cost and improve the construction efficiency and the construction quality.

Description

technical field [0001] The invention relates to the technical field of foundation pit engineering, in particular to a recyclable prestressed support system and a construction method. Background technique [0002] The support system of support pile + internal support is one of the most common and widely used support types in foundation pit engineering. Both the supporting piles and the inner support are made of concrete. Although it has strong applicability and can control the deformation of the foundation pit well, the concrete needs curing time and a long construction period. After the foundation pit project is completed, the support has to be removed, resulting in construction waste and waste of resources. In some municipal pipe gallery projects, it is often necessary to excavate a foundation pit with a certain width and a long longitudinal length, and the longitudinal construction needs to be divided into sections. [0003] During the construction of the pipe gallery pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D17/04E02D5/76
CPCE02D17/04E02D5/765
Inventor 梁伟桥吴旭君龚超曹文昭于至海
Owner SHENZHEN YJY BUILDING TECH
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