Bulletin of Surveying and Mapping ›› 2021, Vol. 0 ›› Issue (8): 69-73.doi: 10.13474/j.cnki.11-2246.2021.0243

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Application of static leveling automatic measurement technology in subway tunnel structure monitoring

LIU Xinyu1, WANG Yong2,3, TANG Chao2,3   

  1. 1. Foshan University of science and technology, Foshan 528000, China;
    2. Beijing Urban Construction Survey and Design Institute Co., Ltd., Beijing 100101, China;
    3. Beijing Key Laboratory of Deep Foundation Pit Geotechnical Engineering of Rail Transit, Beijing 100101, China
  • Received:2021-06-07 Revised:2021-06-25 Online:2021-08-25 Published:2021-08-30

Abstract: At present, the settlement of subway tunnel structure is mainly measured manually by leveling instrument.This monitoring method not only has low work efficiency, consumes a lot of manpower and material resources, but also can not achieve all-weather monitoring. Traditional manual monitoring can not meet the real-time monitoring requirements during subway operation.To solve this problem, this paper introduces the automatic static leveling measurement technology, through the deployment of static leveling gauges on the subway tunnel track bed, real-time monitoring point data is obtained from the remote control terminal, realizing the whole process monitoring during the construction of the tunnel structure protection area, and provides guarantee for the safety of the tunnel structure during the construction period. This article analyzes the actual engineering application cases and the monitoring results in the project. The results show that this technology realizes the automatic leveling of subway tunnels and provides technical support for the safety of subway operations.

Key words: structural settlement, level, automatic measurement, hydrostatic level, remote collection

CLC Number: