摘要
本文为边坡稳定性分析提出一种属于非严格条分法的新条分法。该方法能用于滑动面为任意形态(包括局部上凸和前部反翘)的边坡,能保证土条界面不处于受拉状态也不违反土体破坏准则,能适应端部有水平力的情形,对包括端部有水平力情形在内的直线形滑动面的边坡等效于单块力平衡方程,对无外加水平力的圆弧形滑动面的边坡等效于简化毕肖普法,且计算过程较简单。结果表明,该方法有较高的计算精度。
The new method of slices for slope stability analysis is presented. It belongs to the methods of slices in which all of force equilibrium conditions are not met. It could be used in the slope with general slip surfaces （including some parts protruding and the front part bending up of slip surfaces）, which can pledge that there is no effective pulling stress and that the soil failure principle is not violated on interfaces of slices and can adapt the situation in which there is horizontal forces at the ends. It is equivalent to the force equilibrium equations of single slice for the slope with a straight slip surface and horizontal forces at the ends, and to the simplified Bishop＇s method for the slope with a circular slip surface but without additional horizontal forces in slices. The calculation process is simple. Several results of calculation show that the new method is of the high precision.
出处
《工程勘察》
CSCD
北大核心
2007年第6期31-37,共7页
Geotechnical Investigation & Surveying
关键词
边坡
稳定性分析
新条分法
条间力假定
滑面折角
slope
stability analysis
new method of slices
assumption of inter-slice forces
bending angles of slip surface
