摘要
滑坡是我国主要的地质灾害类型之一,滑坡的发生受多种因素影响,如降雨、所在位置地形地貌,高程、坡度、植被覆盖及人工影响等,其中,我国大多数滑坡又以降雨为主要诱发因素,在这类降雨型滑坡研究中,降雨对滑坡产生的定量作用一直是学术界关注的热点和难点。本文根据梧州市万秀区降雨量与滑坡的数据,采用数理统计方法,关联滑坡的时空分布与降雨过程的统计关系,建立logistic回归模型进行分析,从而确定滑坡降雨临界值及滑坡发生概率。
The landslide is one of the major geological hazard in our country which is affected by many factors,such as rainfall,topography,elevation,slope gradient,vegetation coverage and human activities etc. Rainfall is the major inducing factor in our country. It is a focus and difficult issue in the academia that how to quantitatively determine the rainfall effect on landslide. Based on the monitoring data of rainfall and landslide in Wanxiu District of Wuzhou, using mathematical statistics method, the statistical relationship between spatial distribution of landslide and rainfall process is established and analyzed by logistic regression model. The critical value of rainfall induced landslide and the probability of landslide could be determine by this method.
出处
《工程勘察》
2014年第10期27-31,共5页
Geotechnical Investigation & Surveying
