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直线递增、波状递增、附加荷载作用等分布模式。对不同土压力分布模式下支护结构内力进行分析得出:直线递增(三角形)荷载作用下,整个墙身上部弯矩较小,下部则较大;