复杂地质公路隧道长期安全监控系统设计及应用  

Design and Application of Long-term Safety Monitoring System of Highway Tunnel under Complex Geological Conditions

作　　者：李讯[1] 何川[1] 王士民[1] 汪波[1] 

机构地区：[1]西南交通大学交通隧道工程教育部重点实验室,四川成都610031

出　　处：《中国安全科学学报》2013年第4期89-95,共7页China Safety Science Journal

基　　金：国家杰出青年科学基金资助(50925830);国家重点基础研究发展("973")计划项目(2010CB732105);国家科技支撑计划课题(2012BAG05B03);交通部西部交通建设科技项目(200731800039)

摘　　要：由于设计、施工以及地质等方面的原因,隧道在营运期间承载力逐渐下降并威胁行车安全,因此有必要进行长期安全监控以掌握隧道的实际工作性态。针对复杂地质条件下特长公路隧道的特点,提出监控数据采集、远程传输以及接收方法,制定监控断面的选取和布置原则,建立隧道安全性评价模型,并开发了隧道安全评价与预警软件。设计方案在重庆摩天岭隧道的具体实施表明:监控断面能充分反映隧道的整体受力情况;钢弦式传感器接入结构安全终端,能将采集的数据通过光纤进行远程传输;评价软件能够根据监控数据自动评估结构安全性,评价结果与实际情况吻合。It was pointed out by the authors that due to design, construction, geology and other reason,the carrying capacity of highway tunnel declines gradually during operation period, and endangers the traf- fic safety, and that it is necessary to understand the actual working state of highway tunnel. According to the characteristics of extra-long highway tunnel under complex geological conditions, the monitoring data acquisition, remote transmission and reception method were worked out, the principles of selection and arrangement of monitoring sections were formulated, a tunnel safety evaluation model was built, and a warning software was developed. The results of carrying out the design scheme in Chongqing Motianling tunnel show that the overall tunnel stress situation can be reflected by the monitoring sections, data acquired by steel wire sensors that connects to structural safety terminal can be transfered remotely through the optical fiber, that structural safety evaluation can be carried out according to the monitoring data by software automatically, and that the results are coincident with the practical condition.

关 键 词：隧道 长期监控 营运安全 监控系统 预警软件 

分 类 号：X924.3[环境科学与工程—安全科学] U458.1[建筑科学—桥梁与隧道工程]