Enclosure structure combined with prefabricated members and mixing wall and construction method

A technology of prefabricated components and enclosure structures, which is applied in the direction of foundation structure engineering, excavation, sheet pile walls, etc., can solve the problems of high-strength steel bars with poor bendability and welding performance, poor lap joints, and low relaxation, etc., and achieve construction efficiency The effect of high height, fast pile sinking speed and fast wall forming speed

Inactive Publication Date: 2018-04-06
SHANGHAI CHENGDI CONSTR +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, high-strength steel bars will be used for prefabricated pile reinforcement. High-strength steel bars have high tensile strength, low relaxation, and good upsetting performance. The pile caps of precast piles are not easy to overlap, so only single-section piles can be used

Method used

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  • Enclosure structure combined with prefabricated members and mixing wall and construction method
  • Enclosure structure combined with prefabricated members and mixing wall and construction method
  • Enclosure structure combined with prefabricated members and mixing wall and construction method

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Embodiment

[0045] Such as Figure 1-4 As shown, an enclosure structure and construction method combining prefabricated components and mixing walls. The enclosure structure is suitable for foundation pit and river channel enclosure retaining soil and water stop. The prefabricated components have two forms: one is the urban and land assembled H-shaped enclosure pile component 1, and the other is the prefabricated centrifugal rectangular pile enclosure for water stop. Protective structure3. The mixing wall is a continuous square cement-soil mixing wall, which can be completed by two construction methods, one is the TRD construction method, that is, the TRD construction method mixing wall 2, and the other is the CSM construction method, that is, the CSM construction method mixing wall 4. The prefabricated components are pressed into the mixing wall according to requirements to form the enclosure.

[0046] There are two construction methods for an enclosure structure combining prefabricate...

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Abstract

The invention relates to an enclosure structure combined with prefabricated members and a mixing wall and a construction method. The enclosure structure is suitable for enclosure soil blocking and water stopping of foundation pits and riverways. The prefabricated members have two modes, namely, the city land assembling type H-shaped enclosure pile members and the water-stopping prefabricated centrifugal rectangular pile enclosure structures. The mixing wall is a continuous square cement-soil mixing wall and can be constructed through two construction methods, namely the TRD construction methodand the CSM construction method. The prefabricated members are pressed into the mixing wall according to the requirement to form enclosure. Compared with the prior art, the enclosure structure has the advantages that the bending and shear resistance is good, the brittleness is small, the ductility is good, the cost is low, the efficiency is high, pollution is avoided, multiple sections can be connected, and the enclosure structure can be constructed to be longer and deeper.

Description

technical field [0001] The invention relates to an enclosure structure combined with a prefabricated component and a mixing wall and a construction method. The enclosure structure is suitable for foundation pit and river enclosure retaining soil and water stop. Background technique [0002] In economically developed areas such as the Yangtze River Delta in my country, the annual cost of foundation pit enclosure is as high as 100 billion yuan. At present, the retaining structures used in foundation pit enclosure in my country mainly include underground diaphragm walls, cast-in-place piles, and SMW piles. , soil-nailed walls and pile-anchor structures, the construction techniques of these structures have their own advantages and disadvantages. [0003] In shallow foundation pits, there are many cases of using dual-axis mixing piles to construct gravity dams. The technology of biaxial mixing piles was born in the 1980s and has been used until now. Low, labor-intensive, and the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/20E02D17/04
CPCE02D5/20E02D17/04
Inventor 谢晓东周玉石谢曙东谢益飞赵伟明黄立伟鲍国强汤武张群裴奇斌
Owner SHANGHAI CHENGDI CONSTR
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