铁道科学与工程学报2017，Vol.14Issue(5)：935-941,7.
降雨入渗条件下矿坑边坡稳定性分析
Stability analysis of slope under rainfall infiltration
摘要
Abstract
According to different rainfall conditions and permeability tensor of limestone which calculated by the permeability tensor calculation program. The change of displacement and safety factor of slope before and after reinforcement are compared and analyzed. The changes of axial force of slope reinforcement structure under rainfall are compared and analyzed. The following conclusions were obtained: after the slope displacement analysis of the slope without reinforcement after rainfall, the maximum displacement occurred in the lower part of the slope, followed by the middle, the upper part of the smallest displacement. After the rainfall intensity of 200 mm/d for 4 days, the displacement at the slope foot of the slope increased rapidly, and the corresponding safety factor was reduced to the minimum; The stability of the slope was enhanced by using the prestressed anchor cable, and the slope displacement was very small after the slope was strengthened. The minimum safety factor was much higher than the minimum safety factor when the slope was not strengthened. The axial force of the prestressing force was gradually increased with the rainfall, and the maximum axial force was appeared in the displacement position of the lower part of the slope. With the increase of rainfall duration, the axial force of the upper part of the slope in the displacement slope was stable, and the axial force of the anchor cable at the foot of the slope was increased greatly.关键词
渗透张量/位移/安全系数/轴力Key words
permeability tensor/displacement/safety factor/axial force分类
建筑与水利引用本文复制引用
杨秀竹,叶志凌,雷金山,刘正夫..降雨入渗条件下矿坑边坡稳定性分析[J].铁道科学与工程学报,2017,14(5):935-941,7.基金项目
国家自然科学基金资助项目(51108462) （51108462）
