Soft geological foundation pit excavation construction method for existing line station
A construction method and technology for existing lines, applied in excavation, infrastructure engineering, artificial islands, etc., can solve the problems of existing line station structure safety, new line soft soil foundation pit construction, difficult construction, low construction efficiency, etc., to achieve Automatic monitoring effect is good, construction efficiency is improved, and safety is high
Inactive Publication Date: 2021-07-23
中铁九局集团第一建设有限公司
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Problems solved by technology
Among them, large-scale cities, such as Shanghai, Suzhou and other urban rail transits are developing more rapidly. Many subway lines are planned at positions close to the existing lines for the convenience of transfer. The soft foundation pit construction of the line has brought great difficulties
Most of the platforms of the existing rail transit Line 2 are ground transfers, and the net distance between them is only 5.5m. The construction is difficult, the construction efficiency is low, and the construction safety is poor.
Method used
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Embodiment 1
[0059] See attached figure 1 as shown, figure 1 It is a flow chart of a method for excavating foundation pits in soft ground for existing railway stations provided by the present invention. The invention provides a construction method for excavating foundation pits in soft ground for existing railway stations. The method includes steps: S1, construction preparation.
[0060] Specifically, before construction, it is necessary to prepare the work arrangement for the excavation of the foundation pit, the deployment of construction personnel, etc. The technician confirms the construction drawings, and when the confirmation is correct, it is handed over to the construction personnel, who will operate it, thereby improving the excavation efficiency of the foundation pit.
[0061] S2. Monitoring the foundation pit to be excavated.
[0062] Specifically, before the excavation of the foundation pit, by arranging monitoring points for the foundation pit and the operating station, by ...
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The invention relates to the technical field of foundation pit excavation construction, and provides a soft geological foundation pit excavation construction method of an existing line station. The soft geological foundation pit excavation construction method comprises the following steps that S1, construction is prepared; S2, a foundation pit to be excavated is monitored; S3, a main body of the station is excavated; S4, a steel support servo system is arranged on the main body of the station, construction monitoring is performed on excavation of the main body of the station through the steel support servo system, data is automatically monitored, a deformation rule is analyzed and automatic control is performed; and S5, the excavated foundation pit is subjected to leakage water stopping treatment. The construction efficiency of the foundation pit can be improved, the automatic monitoring effect is good, the construction safety is high, and the application range is wide.
Description
technical field [0001] The invention belongs to the technical field of foundation pit excavation construction, and in particular relates to a method for excavating foundation pits in soft ground for existing railway stations. Background technique [0002] With the development of the city, rail transit is an important transportation hub in the city, and more and more cities have begun to build. Among them, large-scale cities, such as Shanghai, Suzhou and other urban rail transits are developing more rapidly. Many subway lines are planned at positions close to the existing lines for the convenience of transfer. The soft foundation pit construction of the line has brought great difficulties. Most of the platforms of the existing rail transit Line 2 are ground transfers, and the net distance between them is only 5.5m. The construction is difficult, the construction efficiency is low, and the construction safety is poor. Contents of the invention [0003] The invention provid...
Claims
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Patent Timeline
Login to View More IPC IPC(8): E02D17/02E02D17/00E02D17/04E02D19/12E02D29/045
CPCE02D17/02E02D17/00E02D17/04E02D19/12E02D29/045
Inventor 薄洋钟雨涛郑阳衣忠强刘继红王天龙李仁强田晶晶浦锐
Owner 中铁九局集团第一建设有限公司