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根据四川省的地质环境特征和泥石流、滑坡灾害现状,将四川省泥石流分区和滑坡分区专题图与矿产资源规划开采区进行空间耦合,按照定量评价标准分别对每个规划开采分区赋值,进行矿产资源规划开采区泥石流和滑坡灾害危险度分析与预测,再采用多目标线性加权函数评价模型,进行危险度综合分析与预测。结果显示:30个规划开采区中,10个属于地质灾害极高度危险区,主要位于川西高山高原区、横断山区和盆周山区;11个属于地质灾害高度危险区,主要位于川南喀斯特区、川西高山高原区、横断山区和盆周山区;5个属于地质灾害中度危险区,主要位于川南喀斯特区、横断山区和川中丘陵区;4个属于地质灾害轻度危险区,主要位于川中丘陵区和川西高山高原区。评价结果对预防和控制矿区地质灾害有一定参考价值。
According to the characteristics of geological environment in Sichuan Province and the status quo of debris flow and landslide hazard, thematic map of debris flow zoning and landslide partition in Sichuan Province was spatially coupled with the mineral resources planning and exploitation area. According to the quantitative evaluation criteria, each planning mining zoning assignment, mineral resources Planning and mining area debris flow and landslide hazard risk analysis and prediction, and then use multi-objective linear weighted function evaluation model for comprehensive analysis and prediction of risk. The results showed that 10 out of the 30 planned mining areas belonged to the extremely high risk areas of geological disasters, mainly located in the alpine plateau, Hengduan Mountains and the basin periphery of the western Sichuan; 11 belonged to the high risk areas of geological hazards, mainly located in the Karst area of South Sichuan, 5 in the moderately dangerous geological disasters, mainly located in the Karst area of southern Sichuan, Hengduan Mountains and central Sichuan hilly areas; 4 belong to the mild hazard of geological disasters, mainly in the hilly area of central Sichuan and Western Sichuan alpine plateau area. The evaluation results have certain reference value for the prevention and control of geological disasters in the mining area.