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使用遥感技术、地理信息系统技术和ArcGIS平台,分析崩塌滑坡在坡度、高程、地层岩性、距离发震断层距离和距离水系距离方面的敏感性。用信息量法,以此五因子为评价因子,对研究区进行危险性评价。结果表明,中度和高度危险的区域分别占研究区24.79%和20.48%,91%的受损房屋处于基本无危险区和轻度危险区,但仍有部分房屋处于中高度危险区,应做好安全防范工作。
Using remote sensing technology, GIS technology and ArcGIS platform, the sensitivity of landslides to slope, elevation, stratigraphy lithology, seismogenic fault distance and distance to water system is analyzed. Using informative method, taking the five factors as the evaluation factor, the risk assessment of the study area was carried out. The results showed that moderately and highly dangerous areas accounted for 24.79% and 20.48% of the study area, respectively, and 91% of the damaged houses were in the basic non-hazardous area and mildly hazardous area. However, some of the houses were still in medium-high danger area and should be done Good security precautions.