煤田地质与勘探2017，Vol.45Issue(3)：96-100,5.DOI:10.3969/j.issn.1001-1986.2017.03.018
基于影响线分析的滑坡削方减载稳定性计算
Calculation of stability of landslide with deloading trough rock and soil removal based on influence line analysis
摘要
Abstract
Because of its simple method, convenient construction and good anti sliding effect, deloading through rock and soil removal is one of the commonly used measures for landslide control. But different cutting position has different effects on the stability of a slope. In order to illustrate intuitionally this kind of influence, this paper learns from the concept of the influence line of moving load in structural mechanics. By reducing load in different position as the variable load and reducing load to each case corresponds to the stability coefficient as the value of influence, the analysis method for the influence line of the load reduction on the landslide was put forward. Ac-cording to the size of the stability factor and combined with the engineering practice, the optimal cutting position of the landslide was determined. Finally, taking a landslide as an example, statistics were made for the stability factor corresponding to deloading through rock and soil removal at different position. According to the size of the coeffi-cient of stability and combined with the situation of the slope, the optimal unloading position was given, which provides the basis for the reasonable and scientific load reduction. The method is simple in calculation and the re-sult is clear and direct, can provide reference for similar landslide treatment engineering.关键词
滑坡/削方减载/稳定系数/影响线Key words
landslide/deloading through rock and soil removal/stability factor/influence line分类
天文与地球科学引用本文复制引用
李寻昌,李葛,吴瑞芳,杨威..基于影响线分析的滑坡削方减载稳定性计算[J].煤田地质与勘探,2017,45(3):96-100,5.基金项目
中央高校基本科研业务费资助项目(310826172203,310826161018) （310826172203,310826161018）
陕西省科技统筹创新工程计划项目(2016KTZDSF04-05-04) Fundamental Research Funds for the Central University of China(310826172203,310826161018) （2016KTZDSF04-05-04）
Planned Project of Overall Scientific and Technological Innovation Engineering of Shaanxi Povince(2016KTZDSF04-05-04) （2016KTZDSF04-05-04）
