Through the in?situ test,abtaining the phenomenon that the efficient pressure in mucky loam arises sharply when the displacement of support structure reaches to a certaint value.

• 通过现场监测数据分析,获得了在复杂地层中在支挡结构水平位移达到一定值时,淤泥质亚粘土层中有效应力会有突然增大的现象,为今后深基坑工程设计提供了一种土压力取值的依据。