摘要
吐鲁番地区交河故城台地多元层状土质边坡由于差异性风蚀作用而在其中呈不连续分布的中砂和细砂层位置形成空腔后诱发的变形破坏是罕见和特殊的.因而选取该边坡为典型实例,根据其环境特征以及演化历史,采用地质历史成因分析的定性分析方法,并结合FLAC3D数值模拟定量分析方法,较为全面系统地研究了该边坡变形的原因、失稳过程和演化机理.
It is a rare phenomenon that wind erosion induces slope instability, especially in the multivariate layered steep soil slope in the Jiaohe ancient city mesa in Turpan, where discontinuous medium sands and fine sands layers exert the vacuum and cause transformation and destruction due to different wind erosion effects. So the slope was chosen as a typical case. According to the environmental characteristics and the evaluative history, this paper adopted the qualitative analysis of geologic history conglobation, and then combined the quantitative analysis of the FLAC^3D numerical simulation to study the reasons, instable process and evolution mechanism of slope deformation in an overall and systematic manner.
出处
《兰州大学学报（自然科学版）》
CAS
CSCD
北大核心
2011年第1期37-42,共6页
Journal of Lanzhou University(Natural Sciences)
基金
"十一五"科技支撑计划项目(2006BAK30B02)
兰州理工大学博士科研发展基金项目(BS04200902)
古代壁画保护国家文物局重点科研基地开放项目
教育部西部灾害与环境力学重点实验室开放基金项目(klmwde201006)
关键词
差异性风蚀
多元层状
土质边坡
演化机理
effect of different wind erosions
multivariate layer
soil slope
evolution mechanism
