摘要
常规二维滑坡推力计算没有考虑其横向变化,导致设计过于保守,三维推力计算方法的提出则能体现滑坡推力的空间分布,解决二维存在的问题。本文在三维极限平衡法统一模型的基础上,建立了求解三维滑坡推力的统一公式。利用实例,通过二维推力计算与三维计算结果的对比分析,获得三维推力的横向分布函数,有效反映出三维滑坡推力的空间分布状态,所得三维滑坡推力应用于设计更合理。
The common two-dimensional（2D）methods for the driving forces of landslides don＇t consider the lateral variation and confinements,which can make the stabilization design un-precisely.Three-dimensional（3D）method can reflect the spatial distribution of the driving force of landslide.So it can resolve the problem of 2D methods.This paper provides a general formula for calculating the driving force of 3D landslide.It is based on the method of the general form of 3D equilibrium proposed by the authors.The paper presents case studies and a comparison between the 2D and 3D methods.Then,it obtains a distribution function of the lateral variation.This function reflects the spatial distribution of the driving force of 3D landslides,and makes slope stabilization design more reasonable.
出处
《工程地质学报》
CSCD
北大核心
2011年第2期162-167,283,共7页
Journal of Engineering Geology
基金
中央高校基本科研业务费专项资金(CHD2009JC072)
长安大学基础研究支持计划专项基金资助
国家自然科学基金资助项目(40772181
40972182)
关键词
滑坡
滑坡推力
三维极限平衡法
Landslide
Driving force
3D limit equilibrium
Slope stabilization
