The Field Application of Inclinometers for Deformation Sensing in Metro Shield Tunnel

摘要

The wireless inclinometers were fixed on the multi rings of metro shield tunnel to monitor tunnel deformation under the condition of lateral grouting.The method for sensing the longitudinal joint opening of shield tunnel was put forward.The real time monitoring during the soil grouting was adopted for multi rings.Long term convergence data were studied.The change value of joint opening and the data from wireless crack gauges were analyzed.The results showed the good performance of the wireless inclinometers, and the effectiveness of sensing methods were proved.