滑坡与斜坡稳定性一般条分法分析中渗流作用的简化计算  

Simplified calculation of seepage flow action of stability analysis of a slope by general methods of slices

作　　者：方玉树[1] 

机构地区：[1]后勤工程学院,重庆401311

出　　处：《中国地质灾害与防治学报》2011年第3期125-128,共4页The Chinese Journal of Geological Hazard and Control

摘　　要：当滑体或潜在滑体内有倾斜的相对弱面或端部条块外侧面倾斜且有水压力作用时,采用一般条分法进行稳定性分析应比采用垂直条分法更为恰当。本文研究了对一般条分法也适用的渗流作用简化计算方法,首先给出土条渗透力的合理计算式,再根据水的面力与体力的关系给出土条周边孔隙水压力计算方法。同已有的计算方法相比,本文方法的合理性显著提高。To analyze stability of the landslide or the slope with relatively weak and gradient side or with water pressure on the gradient outside of its ends,using general methods of slices is fitter than using methods of vertical slices.The method of simplified calculation of seepage flow action is researched in the paper.The calculation formula of seepage force of a soil slice is put out.and then the method of its round pore water pressures is put out on the basis of connection of between face forces and body forces of water.Using those methods as the current calculation formula of the seepage force and the method of the round pore water pressures according to water depth and evidently advanses the rationality of the result.

关 键 词：滑坡 斜坡 稳定性分析 渗流作用简化计算 一般条分法 孔隙水压力 渗透力 浮力 

分 类 号：P642.22[天文地球—工程地质学]