
科学技术与工程

中国技术经济学会
Evaluation of Susceptibility to Geological Hazardin in Fuyuan County Based on GIS and Weighted Information Model
De-xin CUN , Chang-wei LINGHU , Yi-qi MA , Lin-hu YIN , Qing-song CHEN , Zhen-nan LIU , Chun-lin TU
Science Technology and Engineering ›› 2024, Vol. 24 ›› Issue (18) : 7563 -7573.
Fuyuan County is located in the eastern part of Yunnan Province, with complex terrain and fragile geological environment. In addition, coal mining engineering activities have led to frequent geological disasters, endangering people's lives, property, and production safety. Constructing a scientific and reasonable geological disaster evaluation system is of great significance for the prevention and control of geological disasters. Eight indexes, including elevation, slope, engineering geological group, structure, average annual rainfall, water system, main road and coal mining activity, were selected to evaluate the susceptibility of geological hazard in Fuyuan County based on geographic information system and weighted information model. The results show that coal mining engineering activities and engineering geological formations are key factors affecting the development of geological hazards in Fuyuan County. The area (proportion) of low-prone, lower-prone, medium-prone, higher-prone and high-prone geological hazards in Fuyuan County are 383.8 km2 (19.54%), 449.77 km2 (31.12%), 759.67 km2 (23.53%), 1 004.99 km2 (13.93%) and 630.97 km2 (11.89%), respectively. The distribution of high-prone areas is consistent with that of coal mining activities, which is a region with concentrated disaster points. Through ROC curve verification, the correct rate is 77.95 %, indicating that the zoning is reasonable and can provide reference for the prevention and control of geological disasters in Fuyuan County.
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