以便由力量减小方法的计算结果直接决定斜坡的 slip 飞机,并且分析斜坡稳定性的有影响的因素,一个数字模型被 FLAC3D 为同类的土壤斜坡在飞机紧张模式建立,其参数被减少直到斜坡,到达了临界态。然后,鱼节目被用来得到地点数据从排水量轮廓线滑动飞机。而且,决定的方法多重滑动飞机被设置有弹性的区域的不同高度也建议。为稳定性的有影响的因素被分析,包括结合,内部磨擦角度,和张力的强度。计算结果证明随结合的增加,斜坡的失败模式从到深滑倒的浅滑倒变化,当时倾斜滑动飞机变得更慢,滑倒的体积变得更大;随磨擦角度的增加,斜坡的失败模式从到浅滑倒的深滑倒变化,当时滑动飞机成为更陡峭、上面的边阶滑动飞机接近顶点倾斜;安全因素增加很少并且滑动飞机带着张力的力量的增加远去离开斜坡的顶点。
In order to determine the slip plane of slope directly by the calculation results of strength reduction method, and analyze the influential factors of slope stability, a numerical model was established in plane strain mode by FLAC3D for homogeneous soil slope, whose parameters were reduced until the slope reached the critical state. Then FISH program was used to get the location data of slip plane from displacement contour lines. Furthermore, the method to determine multiple slip planes was also proposed by setting different heights of elastic areas. The influential factors for the stability were analyzed, including cohesion, internal friction angle, and tensile strength. The calculation results show that with the increase of cohesion, failure mode of slope changes from shallow slipping to the deep slipping, while inclination of slip plane becomes slower and slipping volume becomes larger; with the increase of friction angle, failure mode of slope changes from deep slipping to shallow slipping, while slip plane becomes steeper and upper border of slip plane comes closer to the vertex of slope; the safety factor increases little and slip plane goes far away from vertex of slope with the increase of tensile strength.