平推式滑坡成因机制研究  

STUDY ON GENETIC MECHANISM OF TRANSLATIONAL LANDSLIDE

作　　者：范宣梅[1] 许强[1] 张倬元[1] 董思萌[1] 唐然[2] 

机构地区：[1]成都理工大学地质灾害防治与地质环境保护国家重点实验室,四川成都610059 [2]四川省地质工程勘察院,四川成都610059

出　　处：《岩石力学与工程学报》2008年第A02期3753-3759,共7页Chinese Journal of Rock Mechanics and Engineering

基　　金：国家自然科学基金委员会、二滩水电开发有限责任公司雅砻江水电联合基金项目(50579099);霍英东高校青年教师基金(91020)

摘　　要：以四川省宣汉县天台乡滑坡为地质原型,采用相似材料的机制模拟法,通过物理模拟再现滑坡的变形破坏过程,进一步验证平推式滑坡的启动机制和张倬元等提出的启动判据公式。研究结果表明,促使滑坡启动的临界水头高度和与滑面倾角之间的关系为:滑面倾角越大,启动临界水头高度越小;反之,滑面倾角越小,启动临界水头高度越大。According to the physico-mechanical parameters of the Tiantai Village landslide, the physical simulation was preformed. The deformation and failure evolution of the translational landslide, which is caused by the cooperation of the hydrostatic pressure and the uplift pressure, are reconstructed. The clear relationship between the critical water head and the dip angle of the sliding plane is revealed by the results： the larger the dip angle of the slide plane is, the smaller the critical head would be under the same physico-mechanical parameters of rock and soil in the landslide, and vice versa.

关 键 词：边坡工程 平推式滑坡 成因机制 物理模拟 启动判据 

分 类 号：P642.22[天文地球—工程地质学]