将土体中的第四纪断层作为一种土体结构面 ,已成为岩土工程新的研究领域 .通过对土体断层面上物质特征的研究 ,发现当断层面上土颗粒的定向度大于 80 % ,且有次生矿物生成时与蠕滑有关 ;当定向度小于 80 % ,无次生矿物生成时与粘滑有关 . The Quaternary fault in the soil body as a soil structure surface has become a new field of geotechnical engineering.Based on the study of the material characteristics of the fault surface of the soil body, it is found that when the orientation degree of the soil particles on the fault plane is greater than 80%, and there are secondary minerals associated with creep; when the degree of orientation is less than 80%, there are no secondary minerals related to stick-slip.