Construction Method of Retaining Wall in Subway Station

A technology inside retaining walls and subway stations, applied in artificial islands, water conservancy projects, infrastructure projects, etc., can solve problems such as difficult monitoring of monitoring points, small effective excavation depth, and large visual blind spots for excavator drivers. The effects of reducing visual blind spots, increasing effective excavation depth, and reducing cleaning procedures
CN108589770BActive Publication Date: 2021-05-25CHINA RAILWAY 12TH BUREAU GRP +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA RAILWAY 12TH BUREAU GRP
Publication Date
2021-05-25

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Abstract

An embodiment of the present invention provides a construction method for internally moving a retaining wall of a subway station. The method includes: before pouring the crown beam, pre-embedding reinforcement bars for the retaining wall on the side of the crown beam close to the foundation pit; pouring; setting a monitoring point protection device at the monitoring point on the crown beam; and carrying out retaining wall construction. The method provided by the invention can reduce the process of cleaning the earthwork on the crown beam, facilitate the monitoring of the monitoring points on the crown beam, provide accurate and reliable monitoring data for the excavation of the foundation pit, and at the same time reduce the distance between the excavator and the foundation pit. The distance further increases the effective excavation depth of the excavator and reduces the visual blind spot of the excavator driver.
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Description

technical field

[0001] The invention relates to the field of municipal engineering construction, in particular to an inwardly moving construction method for a retaining wall of a subway station. Background technique

[0002] A retaining wall is a structure that can support roadbed fill or hillside soil and prevent the deformation and instability of the fill or soil. The use of retaining walls is currently the most widely used support in road, railway and subway construction projects. Way.

[0003] In the prior art, when the strength of the crown beam around the foundation pit reaches the design value, a retaining wall is first built outside the crown beam, and then the excavator enters the site to excavate the foundation pit outside the retaining wall. Since the crown beam is set between the foundation pit and the retaining wall, when the excavator is working, earthwork often falls on the crown beam, which affects the monitoring of the monitoring points on the crown beam an...

Claims

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