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Construction method of underground diaphragm walls close to subways

A technology of underground diaphragm wall and construction method, which is applied in the direction of sheet pile wall, foundation structure engineering, construction, etc., can solve the problem that underground diaphragm wall cannot meet the construction requirements, and achieve the effect of meeting the construction requirements

Inactive Publication Date: 2020-08-25
CHINA RAILWAY 14TH BUREAU GRP LARGE SHIELD ENG CO LTD +1
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a construction method for an underground diaphragm wall adjacent to a subway to solve the problem in the prior art that an underground diaphragm wall adjacent to a subway cannot meet construction requirements

Method used

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  • Construction method of underground diaphragm walls close to subways

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Embodiment Construction

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0019] Such as figure 1 As shown, the embodiment of the present invention provides a kind of underground diaphragm wall construction method near subway, and this underground diaphragm wall construction method near subway comprises:

[0020] Step 1), using composite anchor piles to reinforce and prot...

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Abstract

The invention provides a construction method of underground diaphragm walls close to subways. The construction method comprises the steps that (1) composite anchor piles are used for reinforcing and protecting bridge piles and roadbeds of the adjacent subways; (2) surveying and setting out are conducted; (3) excavation is conducted at the positions of guide walls according to surveying and settingout positioning parameters, then plain concrete cushion layers are poured, and guide wall construction is conducted; (4) all the underground diaphragm walls on the same straight line section are divided according to groove sections, and framing groove jumping construction is conducted; (5) a reinforcement cage is hoisted, and guide pipe arrangement and concrete pouring are conducted; and (6) in the step (1) and the steps (3) - (5), the deformation conditions of the bridge piles and the roadbeds of the adjacent subways are monitored, an accumulated deformation curve is generated according to monitored data, and construction parameters in the step (1) and the steps (3) - (5) are adjusted in time according to the deformation conditions. Through the technical scheme provided by the invention,the problem that in the prior art, the underground diaphragm walls close to the subways cannot meet the construction requirements can be solved.

Description

technical field [0001] The invention relates to the technical field of underground diaphragm wall construction, in particular to a construction method for an underground diaphragm wall adjacent to a subway. Background technique [0002] At present, during the construction of the underground diaphragm wall of the shield tunnel, if there are existing adjacent subway lines around the shield tunnel under construction, the construction process may cause the adjacent subway lines to subside, posing safety hazards. And, there is no effective method for prevention and control in the prior art. [0003] Therefore, there is a problem in the prior art that the underground diaphragm wall adjacent to the subway cannot meet the construction requirements. Contents of the invention [0004] The invention provides a construction method for an underground diaphragm wall adjacent to a subway to solve the problem in the prior art that the underground diaphragm wall adjacent to a subway canno...

Claims

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Application Information

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IPC IPC(8): E02D5/18E02D5/74
CPCE02D5/18E02D5/187E02D5/74
Inventor 陈爽杜贵新刘磊高始军赵斌刘善福房新胜李瑞光吴琼
Owner CHINA RAILWAY 14TH BUREAU GRP LARGE SHIELD ENG CO LTD
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