The substructures of building have to been constructed in the mucky soil with development of the urbanconstruction, and the difficulty of the slope supportting in foundation pit occures in this case.

• 随着城市建设的发展，许多建筑物地下室往往坐落在淤泥质土层中，由于淤泥质土是一种流动性大、高压缩性、高灵敏性土体，因此，它给地下室基坑边坡围护带来了很大的因难。