摘要
根据成都粘土中裂隙特征与地质环境条件的综合分析，提出成都粘土中两种主要裂隙类型的成因模式：上升剥蚀引起的垂向卸荷作用，产生波状水平裂隙；冲沟切割引起的侧向卸荷作用，产生平行斜列裂隙。并通过地质力学模拟试验和有限元数值分析，验证了裂隙的产生及演化历程。
In this paper,the genesis of two types of typical fissures in Chengdu clay is discussed by the comprehenive analysis of the patterns of fissures and the geological environment conditions:the undulant horizontal fissures was caused by the vertical unloading effect due to denudation during the crust rising;and the planar parrallely inclinned fissures was caused by the lateral unloading effect due to gully development.FInally,by means of geomechanical simulating test and finite element analysis,the genesis of fissures in chengdu clay was confirmed.
出处
《地质灾害与环境保护》
1997年第4期40-46,共7页
Journal of Geological Hazards and Environment Preservation
关键词
粘土
裂隙成因
物理力学
应力分析
Chengdu clay\ Fissure\ Genesis analysis\ Unloading effect\ Geomchenical simulation\ Finite element
