Shield tunnel monitoring system under water

The utility model relates to a shield tunnel monitoring system under water, it sets up the concatenation section of jurisdiction in the tunnel on surface of water below stratum, installs at least foursurface stress meter on splicing the section of jurisdiction inside wall. Further improvement as above -mentioned technical scheme: surface stress counts vibrating wire type. Install wireless rangingmodule on splicing the section of jurisdiction, wireless ranging module is including the lower wireless transmitting terminal who lies in tunnel bottom surface center, the last wireless receiving terminal who lies in tunnel top surface center and the side wireless receiving terminal of two at least distributions on the tunnel side. The utility model relates to a rationally, compact structure andconvenient to use. 本实用新型涉及水下盾构隧道监测系统，其设置在水面下方地层的隧道内的拼接管片，在拼接管片内侧壁上安装有至少四个表面应力计。作为上述技术方案的进步改进：表面应力计为振弦式。在拼接管片上安装有无线测距模块，无线测距模块包括位于隧道底面中心的下无线发射端、位于隧道顶面中心的上无线接收端以及至少两个分布在隧道侧面上的侧无线接收端。本实用新型设计合理、结构紧凑且使用方便。