undulance

By analyzing the monitoring data of the earth pressure on the wall,three earth pressure models were sum up,that is,the straight line increase,undulance increase and extra load pattern etc.

施工过程土压力沿坑深变化有递增、波状递增、附加荷载作用等分布模式。土压力分布模式下支结构内力进行分析得:递增(三角形)荷载作用下,整个墙身上部弯矩较小,下部则较大;