摘要
本文运用LASA软件,分析了采用传递系数法计算滑坡稳定系数时,传递系数计算式、条块划分、渗透压力计算对稳定系数的影响。传递系数计算式的分析得出采用迭代法求解是比较合理的方法;通过实例对条块划分导致的影响分析,可知条块划分应当尽量与滑体的实际情况相符合才可以减小计算误差;渗透压力计算分析指出稳定性计算考虑动水压力时,应当根据不同情况选择不同水力坡降计算式。
Based on the LASA（Landslide stability analysis system） software, the influencing factor about safety factors, including the expressive formula of transmitting coefficients, item compartmentalization.seepage pressure, is analyzed when the transmitting coefficients method is adopted. The results indicate that the iterative method to calculate the transmitting coefficients is reasonable, and the item compartmentalization should be accord with the actual situation in order to reduce the error. Finally, it is found that expressive formula of hydraulic gradient should be selected according to the different situation.
出处
《地球与环境》
CAS
CSCD
北大核心
2005年第B10期7-11,共5页
Earth and Environment
基金
三峡库区滑坡稳定性评价系统研究
国土资源部科研项目
关键词
传递系数法
LASA软件
条块划分
渗透压力
transmitting coefficients expression
LASA software
item compartmentalization
seepage pressure
