城市轨道交通结构形变监测方法及应用——以邻近基坑开挖的影响为例

Method and Application of Rail Transit Structure Monitoring

受到地质条件、施工环境和施工技术等多种因素影响,轨道交通设施自运营开始就存在不同程度的结构病害与安全隐患,尤其是在长期处于地质条件不利的区域,保护区内基坑开挖、近距离的盾构穿越等外部作业的影响,都会导致轨道交通结构的形变。本文介绍了轨道交通结构监测的主要方法以及在实际工程中的运用,通过实际监测数据分析,及时掌握轨道交通结构的变形情况,确保其运营安全。

Affected by various factors such as geological conditions,construction environment and construction technology,rail transit structure have different degrees of structural diseases and safety hazards since the beginning of operation,especially in areas with unfavorable geological conditions,with the influence of external operations such as pit excavation or close shield crossing in the protected area of rail transit,it will lead to the deformation of rail transit structures.This paper introduces the main methods of rail transit structure monitoring measurement and its application in actual engineering,and through the analysis of monitoring data,timely grasps the deformation of rail transit structure to ensure its operational safety.