Automated deformation monitoring for urban subway tunnelling risk assessment: a case study from the Wuhan Metro line 12

作     者：Yuyong Jiao Jianfeng Qi Hongbin An Luyi Shen Fei Zheng Zhi Li You Zhang Lingling He 

作者机构：Faculty of Engineering China University of Geosciences (Wuhan) Wuhan Metro Inc. School of Civil and Hydraulic Engineering Huazhong University of Science and Technology China Railway Construction Investment Group Corporation Ltd. Department of Civil Engineering Monash University 

出 版 物：《Journal of Earth Science》 (地球科学学刊)

年 卷 期：2024年

核心收录：

学科分类：081406[工学-桥梁与隧道工程] 08[工学] 0814[工学-土木工程] 082301[工学-道路与铁道工程] 0823[工学-交通运输工程] 

基　　金：supported by the Natural Science Foundation of China’s grant 41920104007,42227805 "CUG Scholar"Scientific Research Funds at China University of Geosciences (Wuhan)(Project No.2022019) 

摘      要：Monitoring deformation is of critical importance for tunnel boring projects. This importance is further amplified for the metro construction project that involves boring beneath or near susceptible civil infrastructures. Here， we present a case study that uses robotic total station to preform automated deformation monitoring inside a tunnel during the excavation. Further， enabled with the Internet of Things technology， the monitoring data are streamlined through wireless internet access points and processed by a remote control center. A complete suite of software is deployed that can 1. process the monitoring data automatically. 2. set different triggering threshold reflecting various levels of hazardous incidents. 3. storing the data for further analysis that visualize the data， quantify overall risk levels and conduct predictive modelling. Built upon this automated system， a triage of risk response protocol is established that preforms reactive treatment according to the levels of reported hazards. A de-risk process， involving third party review， is also established. Overall， this report demonstrates our effort in monitoring the tunnel’s deformation with an automated system to save cost and reduce human induced errors. This report can be a useful reference for other engineers preforming metro tunneling tasks.