采用桩基穿过可液化土层以消除液化时建筑物下沉的危险,是在工程中常用的措施之一。但由于地震和液化问题的复杂性,至今对液化土中桩的设计还缺乏适当的方法。目前,最常用的实用计算方法是将可液化层的摩擦力和承载力均取零,而地震力与全层液化同时出现,一般不考虑承台旁土的被动抗力。许多人已经指出这种方法可能偏于保守。本文在我国海城、唐山震害调查基础上 The use of pile foundations to penetrate liquefiable soil layers to eliminate the danger of buildings sinking during liquefaction is one of the commonly used measures in engineering. However, due to the complexity of seismic and liquefaction problems, there is still a lack of appropriate methods for the design of piles in liquefied soil. At present, the most commonly used practical calculation method is to take the friction force and bearing capacity of the liquefiable layer as zero, and the seismic force and the full layer liquefaction occur at the same time, generally do not consider the passive resistance of the earth near the platform. Many people have pointed out that this method may be conservative. This article is based on the investigation of earthquake damage in Haicheng and Tangshan in China