要在多年冻土上或人工冻土中经济合理地修筑各种稳定的建筑物,设计师们必须掌握足够的冻土强度和蠕变资料。近半个世纪来,虽然许多研究者对冻土的强度和变形性进行了广泛的研究,但由于冻土的应力-应变过程十分复杂,所以人们对于该课题中的许多问题至今仍不清楚。和研究其它材料的强度一样,冻土强度的研究通常也有二种方法,即所谓强度试验和蠕变试验。前者是指对试样施加一恒定变形速度或应变速度,而 To build stable buildings economically and reasonably on permafrost or in artificially frozen ground, designers must have sufficient information on the strength and creep of permafrost. In the past half century, although many researchers have conducted extensive studies on the strength and deformability of permafrost, due to the complicated stress-strain process of permafrost, many questions about this subject are still unclear. As with the strengths of other materials, there are usually two methods for studying the strength of permafrost, the so-called strength test and creep test. The former refers to applying a constant deformation speed or strain rate to the sample, and