摘要
根据原状冻土和扰动冻土的强度和蠕变试验结果,全面地讨论了原状、扰动冻粘土单轴抗压、抗拉、抗剪强度及蠕变变形特性的差异性。由试验得出,原状冻粘土强度及蠕变变形低于扰动冻粘土,而弹模高于扰动冻粘土。并说明了两种冻粘土力学指标出现差异的原因。
In this article, based on the experiments in strength and creep, the differences of compression, tensile, shear strength and creep between original and disturbed frozen clays are discussed. According to the experiments, the strength and creep deformation of original frozen caly are smaller and the moduli are larger as compared with that of disturbed frozen calys. It is explained why mechanical properties between original and disturbed frozen clays are different. The results are available for determining design index of freezing engineering.
出处
《冰川冻土》
CSCD
北大核心
1996年第3期256-261,共6页
Journal of Glaciology and Geocryology
关键词
原状冻粘土
扰动冻粘土
强度
变形
土力学
orginal frozen clays, disturbed frozen clays, strength, deformation