摘要
有鉴于有建筑物的边坡越来越多,而地震、边坡坡高、建筑物大小(即荷载大小)以及建筑物位置(即荷载位置)都对边坡稳定性有很大的影响,分清影响因素的主次,可以为治理此类边坡提供依据。文章通过GEO-studio采用有限元法进行边坡数值模拟,通过正交实验法分析了各个因素对边坡稳定性影响的敏感性,发现影响边坡稳定性因素的主次顺序为:坡高H影响最大,其次是荷载距离L,荷载P与地震加速度α相差无几。通过模拟分析发现,荷载距离大于12m时,荷载位置对边坡稳定性影响就微乎其微了。
In view of the increasing number of slopes in buildings, earthquakes, slope heights, building sizes (load sizes) and building locations (load locations) have a large impact on slope stability. Distinguishing the primary and secondary factors of influence can provide a basis for the treatment of such slopes. In this paper, the numerical simulation of slope is carried out by GEO-studio using finite element method. The sensitivity of each factor to the stability of slope is analyzed by orthogonal experiment. The order of the factors affecting the stability of slope is found: the influence of slope height H is the largest, followed by the load distance L, and the load P is almost the same as the seismic acceleration α. Through simulation analysis, it is found that when the load distance is greater than 12m, the impact of the load position on the slope stability is negligible.
作者
王乐
WANG Le(College of Water Resources and Environment,China Three Gorges University,Yichang 443002,China)
出处
《价值工程》
2019年第11期147-149,共3页
Value Engineering
关键词
边坡稳定性
敏感性分析
荷载位置
荷载大小
地震
slope stability
sensitivity analysis
load location
load size
earthquake
