一、引言对摩擦桩的大量研究,已经涉及到承载能力的确定和有关打桩的问题,尤其是超孔隙水压力的产生这方面问题。目前一般地认为,由于侧向应力和孔隙压力的产生打桩导致了粘土强度的损失。在软粘土情况下,再固结能使强度恢复到接近于原状土的强度值。 I. INTRODUCTION A large number of studies on friction piles have involved the determination of carrying capacity and problems related to piling, in particular the generation of excess pore water pressure. It is generally believed that the piling due to lateral stress and pore pressure leads to the loss of clay strength. In the case of soft clay, reconsolidation can restore the strength to a value close to that of the undisturbed soil.