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Novel mixed reinforcement H-shaped sheet pile and five (six)-shaft cement soil mixing wall combined building envelope and construction method thereof

A technology of cement-soil mixing wall and mixed reinforcement, applied in sheet pile wall, foundation structure engineering, excavation, etc. The effect of high construction efficiency, fast pile driving and shortened construction period

Inactive Publication Date: 2014-11-05
SHANGHAI CHENGDI CONSTR +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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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  • Novel mixed reinforcement H-shaped sheet pile and five (six)-shaft cement soil mixing wall combined building envelope and construction method thereof
  • Novel mixed reinforcement H-shaped sheet pile and five (six)-shaft cement soil mixing wall combined building envelope and construction method thereof
  • Novel mixed reinforcement H-shaped sheet pile and five (six)-shaft cement soil mixing wall combined building envelope and construction method thereof

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Embodiment

[0041] Such as Figure 1-4 As shown, a new type of mixed-reinforced H-shaped sheet pile combined with five-axis (six-axis) FCW construction method cement-soil mixing wall is suitable for foundation pit and river channel enclosure retaining soil and water. The new type of mixed-reinforced H The type sheet pile includes a middle connection part and two end connection parts, wherein both sides of the middle connection part and the ends of the two end connection parts are provided with embedded iron 3-1 and multi-section connection iron plates 3-2. The new hybrid reinforced H-shaped sheet pile 2 is equipped with high-strength steel bars 4 and ordinary steel bars 5 at the same time. Described high-strength steel bars 4 and ordinary steel bars 5 are provided with multiple (can be prepared according to the size requirements of actual piles, as in the present embodiment, high-strength steel bars 4 are prepared with 7, and ordinary steel bars 5 are prepared with 16), distributed in the...

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Abstract

The invention relates to a novel mixed reinforcement H-shaped sheet pile and five (six)-shaft cement soil mixing wall combined building envelope and a construction method thereof. The building envelope is suitable for soil retaining and water stop of foundation pit and riverway envelopes; and high-strength reinforcements and conventional (grade II, grade III and grade IV) reinforcements are synchronously arranged in novel mixed reinforcement H-shaped sheet piles. The high-strength reinforcements are tensioned with low prestress; the conventional reinforcements are tensioned without the prestress; the high-strength reinforcements and the conventional reinforcements are respectively connected with pile caps; and the pile caps are connected with each other to form a multi-section H-shaped sheet pile building envelope. Compared with the prior art, the novel mixed reinforcement H-shaped sheet pile and five (six)-shaft cement soil mixing wall combined building envelope has such advantages as good bending and shearing resistance, low brittleness, good ductility, low cost, high effect and no pollution; and multiple sections can be connected to achieve the long and deep effects.

Description

technical field [0001] The invention relates to an enclosure structure and a construction method in which a novel mixed-reinforced H-shaped sheet pile is combined with a five-axis (six-axis) FCW construction method cement-soil mixing wall. 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] There are many cases of using two-axis mixing piles to construct gravity dams in shallow foundation pits. The two-axis mixing pile technology wa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D17/04E02D5/10
Inventor 谢晓东周玉石谢益飞赵伟明黄立伟鲍国强汤武张群邢克伦施问知
Owner SHANGHAI CHENGDI CONSTR
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