Segmented reinforcement cage and continuous wall construction method under low-clear-air high-voltage line

A technology of underground diaphragm wall and steel cage, which is applied in the direction of sheet pile wall, foundation structure engineering, construction material processing, etc., to achieve the effect of convenient hoisting, simple and convenient connection, and simple and firm structure

Inactive Publication Date: 2020-11-27
CHINA RAILWAY 14TH CONSTR BUREAU GRP 4TH ENG +2
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] Affected by the clearance height of the high-voltage line and the distance requirements of the safety protection zone, it is difficult to use conventional machinery for trenching and hoisting operations when the high-voltage line is continuously powered and the safe construction height is so low with the current earth-connecting construction method

Method used

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  • Segmented reinforcement cage and continuous wall construction method under low-clear-air high-voltage line
  • Segmented reinforcement cage and continuous wall construction method under low-clear-air high-voltage line
  • Segmented reinforcement cage and continuous wall construction method under low-clear-air high-voltage line

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Embodiment Construction

[0059] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0060] This embodiment takes a section of a certain river tunnel as an example. The construction area of ​​the underground diaphragm wall in this embodiment belongs to the joint construction section of rail transit and road, and the overhead line above the construction area is a 110KV high-voltage line crossing the road, located at EK0+870 of the joint construction section ~EK0+900 section.

[0061] In the present embodiment, the sectioned reinforcement cage for the continuous wall is adopted, including: a multi-section reinforcement cage unit 1, and the reinforcement cage unit 1 is as figure 1 As shown, it includes reinforcement cage skeleton 1-1, main reinforcement 1-2,...

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Abstract

The invention discloses a segmented reinforcement cage and a continuous wall construction method under a low-clear-air high-voltage line, and belongs to the technical field of continuous wall construction. Each unit of the multi-section reinforcement cage comprises a reinforcement cage framework, main steel bars, reinforcing ribs and inverted U-shaped lifting lugs, sections are connected in a mainsteel bar connector mode and a full-welding mode, the structure is simple and firm, hoisting is facilitated, and the stability is high. According to the method, a set of construction protection measures under the high-voltage line and a construction preparation process are provided, and grooving and hoisting construction can be carried out by adopting conventional equipment on the premise that the low-clear-air high-voltage line does not stop power supply. According to the method, the strength of the underground continuous wall of the area under the high-voltage line is not lower than that ofother sections while safe, orderly and rapid construction is carried out.

Description

technical field [0001] The invention relates to the technical field of diaphragm wall construction, in particular to a construction method for a diaphragm wall under a sectioned reinforcement cage and a low-clearance high-voltage line. Background technique [0002] Urban infrastructure is the material basis for the normal operation and healthy development of a city. As a key area of ​​urban infrastructure construction, the construction of public transport infrastructure plays an important role in improving the travel environment of residents and ensuring travel safety. Among them, the subway plays a key role in urban public transportation, and my country has made rapid development in subway construction since the 1990s. Because the underground diaphragm wall has many advantages such as high efficiency, reliable quality, low construction noise and good seepage resistance, it is used in many aspects of urban foundation engineering. In the construction of urban tunnel open cut...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/18E02D15/08E04C5/16E04G21/32
CPCE02D5/18E02D15/08E04C5/163E04C5/165E04G21/32
Inventor 赫德亮陈天宇朱士齐李红普何本国宋效忠吴新建曹现涛邢高冲田运朋杨立亭王剑孙伟亮辛乐清李涛李树敬明茂刚曲超周悦龙
Owner CHINA RAILWAY 14TH CONSTR BUREAU GRP 4TH ENG
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