富水软土地区综合管廊运行初期结构变形规律与安全评价

Structural Deformation Rule and Safety Evaluation of Utility Tunnel in Early Operation Period in Water-rich Soft Soil Area

摘要:

地下综合管廊是城市的生命线工程。管廊处于特殊的地质环境中，经过较长的运营期，极易产生不均匀沉降、接缝变形和断面扭转等结构病害，影响管廊的正常运营使用。因此，对地下构筑物进行结构健康监测在结构病害形成破坏前发现问题并采取工程手段去解决，以保障地下构筑物运营安全非常必要。以连云港市徐圩新区地下综合管廊为依托，开展管廊结构变形监测和病害调研，对结构健康监测数据进行分析，评价综合管廊的安全状态，并提出相应的养护措施，为国内相似工程提供一定借鉴及参考。

Abstract:

The underground utility tunnel is the lifeline project of a city. After a long operation period, the utility tunnel located in the special geological environment is easy to produce the structural diseases such as uneven settlement, joint deformation and section torsion, which affect the normal operation of the utility tunnel. Therefore, it is necessary to monitor the structural health of underground structures, to find out the problems before the formation of structural diseases and take the engineering measures to solve the problems so as to ensure the operation safety of underground structures. Based on the underground utility tunnel in Xuwei New District of Lianyungang City, the structural deformation monitoring and disease investigation of the utility tunnel are carried out. The structural health monitoring data are analyzed. The safety state of the utility tunnel is evaluated. And the corresponding maintenance measures are put forward, which provide some reference for similar projects in China.