Construction method of complex geology and environment access to existing support system of subway

A technology with complex geology and systems, applied in artificial islands, water conservancy projects, infrastructure projects, etc., to achieve the effects of increasing stability, saving costs, and reducing noise

Active Publication Date: 2016-11-30
CHINA CONSTR SIXTH ENG BUREAU CIVILENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This patent discloses the ground connection wall of cast-in-place rectangular support piles by immersed tubes, which is not suitable for the construction method of ground connection wall support in the surrounding area of ​​this application, which is close to the subway station and has complex geology.

Method used

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  • Construction method of complex geology and environment access to existing support system of subway
  • Construction method of complex geology and environment access to existing support system of subway
  • Construction method of complex geology and environment access to existing support system of subway

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Embodiment 1

[0032](1) Select a point in the ground connection wall system to be built as the first axis point 1. The principle of selecting the first axis point is based on the actual situation on site. In order to ensure that the construction period is not delayed, the first axis point is far away from the surrounding underground pipelines to be relocated , and at the same time select the first axis point 1 to ensure that there will be no influence of the surrounding buildings during the construction of the ground connection wall to be constructed. Set the two intersecting surfaces of the original support ground connection wall system and the to-be-built ground connection wall system of the original subway station; the original support ground connection wall system and the to-be-built ground connection wall system of the original subway station Select an intersecting surface closest to the first axis point as the first connecting surface, and another intersecting surface as the second con...

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Abstract

The invention discloses a construction method for an existing supporting system connected into a subway in the complex geology and environment. The construction method comprises the following steps that a point is selected from an underground diaphragm wall system to be built as a first axis point, and two intersecting surfaces of an original underground diaphragm wall supporting system of an original subway station and the underground diaphragm wall system to be built are set; a new underground diaphragm wall is built from the first axis point to the first connection surface to form a closed structure; an angular point closest to the first connection surface and the second connection surface is selected from the closed structure as a second axis point, and then two rows of third three-axis mixing piles are driven on the left side and the right side of a set third new underground diaphragm wall to be built from the second axis point to the second connection surface; and cement is poured into the spaces among first three-axis mixing piles, second three-axis mixing piles and the third three-axis mixing piles in sequence to form the first new underground diaphragm wall, the second new underground diaphragm wall and the third new underground diaphragm wall. By means of the method, the structural stability and the waterproof effect are improved.

Description

technical field [0001] The invention relates to a construction method for connecting to an existing support system of a subway, in particular to a construction method for a connecting wall connected to an existing support system of a subway with complex geology and environment. Background technique [0002] The underground diaphragm wall originated in Italy. After decades of development, the technology of the underground diaphragm wall has been quite mature. , the emergence of high-rise and super high-rise buildings, it has developed from the basement exterior wall to the load-bearing foundation of high-rise buildings, which greatly strengthens the overall bearing capacity of the building and relatively reduces the cost. Especially with the continuous improvement and improvement of construction technology, it continues to The development of ultra-thin and ultra-deep is widely used in the anti-seepage of rivers and lakes, the construction of ports, docks and sewage treatment ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D29/045E02D5/18
Inventor 袁银书王丽梅李永红葛强朱永
Owner CHINA CONSTR SIXTH ENG BUREAU CIVILENG
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