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滑坡影响范围的研究一直是滑坡空间研究的主要内容,具有重要的减灾防灾意义。研究滑坡影响的范围主要根据滑坡滑动距离来确定,现阶段的研究存在较大进步的空间。本文以甘肃黑方台地区所有滑坡的滑动距离作为整体样本,根据研究区实际情况,将滑坡群分为Ⅰ段、Ⅱ段、Ⅲ段、Ⅳ段、Ⅴ段和Ⅵ段;基于核密度估计模型与Value-at-Risk(VaR)模型对研究区滑坡影响范围展开了分析。结果表明MISE窗宽值为68.7238的核密度估计能较好表达整体样本的概率分布规律;VaR模型计算得到了符合滑坡分段实情的滑坡风险滑动距离值(DR);结合分区实际情况,得出在Ⅰ段、Ⅱ段、Ⅲ段和Ⅵ段的滑坡底部DR处修建简易牢固拦挡措施及基于Ⅳ段和Ⅴ段的黄土滑坡样本研究滑坡滑带部位含水量与滑动距离之关系的认识。
The research on the influence range of landslide has been the main content of landslide space research, which has the important significance of disaster prevention and mitigation. The study of the scope of landslide impact is mainly based on the landslide sliding distance to determine, there is room for improvement at this stage of research. Based on the sliding distance of all landslides in Heibutai region of Gansu Province as a whole sample, the landslide group is divided into Ⅰ, Ⅱ, Ⅲ, Ⅳ, Ⅴ and Ⅵ according to the actual situation of the study area. Based on the nuclear density estimation model And the Value-at-Risk (VaR) model to analyze the influence range of the landslide in the study area. The results show that the kernel density estimation of MISE with a window width of 68.7238 can express the probability distribution law of the whole sample better. The VaR model calculates the landslide risk sliding distance (DR) which accords with the actual situation of landslide segmentation. SIMPLE AND STRENGTHENING MEASURES TO ESTABLISH A SIMPLEST AND STRONG SLOPE IN THE DRILL AT SLOPE OF TERRESTRIAL LANDS Ⅰ, Ⅱ, Ⅲ, AND VI AND THE LOOSE LANDSLIDE SAMPLES BASED ON SECTIONS IV AND V ON THE STUDY OF THE RELATIONSHIP BETWEEN THE WATER CONTENT AND THE SLIDING DISTANCE OF LANDSLIDE SLIP.