摘要
以南京市某边坡为例,介绍了一种边坡稳定性评价的半定量方法。首先,根据边坡所处地质环境对其稳定性趋势作出分析,确定该边坡的稳定性影响因素;进而,根据对该地区同类型滑坡的统计,分析了影响因素与滑坡发生的相关性;在通过对比求和评分法得出了各影响因素的稳定性权重值之后,又根据相关性分析得出的结果,完成了影响因素的分级赋值;最后,得出了边坡稳定性的评价模型,并求出了不同降雨量情况下边坡的稳定性指数。
In this paper,a half quantitative evaluation method is presented for evaluating the stability of a slope in Nanjing City.Firstly,the stability tendency of the slope is analyzed according to its geological background and the influential factors of the stability are indicated.Then,the correlation between influential factors and the occurrence of the slips is studied based on the data of past slips of Nanjing City.After working out the weighting value,each influential factor is assigned value by grade based on the analysis of correlation.Finally,the evaluation model is given and the stability coefficient during different rainfall ranges is obtained.
出处
《防灾减灾工程学报》
CSCD
2007年第4期425-428,共4页
Journal of Disaster Prevention and Mitigation Engineering
关键词
边坡稳定性
影响因素
相关性分析
稳定性权重值
评价模型
slope stability
influential factors
analysis of correlation
the evaluation value of stability
evaluation model
