Three-dimensional intelligent monitoring method for structure adjacent to existing station in new subway construction

Abstract

Provided is a three-dimensional intelligent monitoring method for a structure adjacent to an existing station in new subway construction. The method is an optimization of space monitoring point selection, and comprises the following steps: selecting different monitoring sections between a subway construction area and the existing station, selecting a plurality of monitoring points on the same monitoring section, and drilling; arranging inclinometers, settlement meters and other instruments in the holes, so that the settlement deformation condition of the soil body near the existing station is obtained, according to the obtained soil body monitoring data, a pre-established prediction model about the existing station and subway construction is corrected, and the inclinometers and other monitoring instruments are arranged on the side wall of the existing station to monitor the deformation of the existing station. And the obtained monitoring data is used for checking the corrected model, so that the accuracy of the prediction model is determined, the prediction model realizes the extraction of deformation settlement data at any position of the existing station under different construction steps, and the position and the construction stage which have great influence on the deformation of the existing station in the whole construction process can be determined in advance.

Description

technical field [0001] The invention relates to intelligent monitoring and early warning of existing subway stations, in particular to a spatial three-dimensional intelligent monitoring method of existing stations. Background technique [0002] At present, in order to monitor the deformation impact of new subway construction on existing stations, instruments such as total stations and levels are usually installed inside the station to monitor it, but in this way, the monitoring cost is high and only limited monitoring points can be obtained. However, various environmental factors in the station will have a non-negligible impact on the monitoring, resulting in a decrease in the final monitoring accuracy or inaccurate monitoring data; while monitoring existing stations by means of ground penetrating radar, although non-destructive testing can be achieved, it can only The approximate location of the station is obtained, so the obtained settlement deformation data is not accurat...

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Problems solved by technology

[0002] At present, in order to monitor the deformation impact of new subway construction on existing stations, instruments such as total stations and levels are usually installed inside the station to monitor it, but in this way, the monitoring cost is high and only limited monitoring points can be obtained. However, various environmental factors in the station will have a non-negligible impact on the monitoring, resulting in a decrease in the final monitoring accuracy or inaccurate monitoring data; while monitoring existing stations by means of ground penetrating radar, although non-destructive testing can be achieved, it can only Obtain the approximate location of the station, so the obtained settlement deformation data is not accurate and cannot be used as reference data in actual construction

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