基于监测位移的围岩参数反演和变形预测

On parameter back analysis of surrounding rocks and deformation forecasting based on monitoring displacement

结合宁波某隧道工程实例,基于位移监测数据,对围岩的力学参数进行了正交反演试验,并采用ABAQUS软件进行了数值模拟正算,对比了未开挖围岩预测的位移与实际监测位移数据,指出采用反演值进行数值模拟具有较高的可靠性。

Combining with some tunnel project in Ningbo City,the paper undertakes the orthogonal back test of the dynamic parameter of surrounding rocks,undertakes the numeric simulation calculation of ABAQUS software,compares the displacement of the unexcavated surrounding forecasting and the displacement data of the monitoring,and points out the numeric simulation of the back value is highly reliable.