Poulos-Davis-Randolph (PDR) Method is a empirical calculation method. It is easy to compute the relation between the number of piles and the average settlement of the foundation.
PDR法是计算沉降控制复合桩基的一种经验方法，它在一定程度上考虑了桩的非线性和桩—土—筏的共同作用。
The collapsibility farmland is easy to change, which make the make building appear substantial settlement, fracture and tilt.
湿陷性黄土地基易变形，会使建筑物大幅度沉降、折裂及倾斜。
Dacromet coating solutions prepared with mixed metal powders are easy to be dispersed with short-time agitation and have good anti-settlement and covering force.
混合处理后的粉末配制的达克罗涂液易分散，搅拌时间短、抗降沉性好、遮盖力强。
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