一、前言工程实践表明,季节冻土地区的桩基桥涵的稳定性往往是由抗冻拔稳定控制的,也就是说,为了保证建筑物的稳固可靠,必须进行抗冻拔稳定检算。合理的确定切向冻胀力值则是抗冻拔稳定检算的关键。但是,目前国内外对季节冻土区桩基切 I. Preface Engineering practice shows that the stability of pile-foundation bridges and culverts in seasonal frozen soil is often controlled by anti-freezing stability, that is to say, in order to ensure the stability and reliability of buildings, anti-freezing stability estimation must be carried out. Reasonable to determine the value of tangential frost heave is the key anti-freezing stability of the test. However, at present, the pile cutting of seasonally frozen soil area is cut at home and abroad