摘要
在综合分析豫西枣乡峪乱石沟地质条件的基础上,提出了矿山崩塌地质灾害发生的主要影响因素,包括节理发育情况、地形坡度、临空条件和采矿开挖影响。利用GIS的空间分析功能,采用1mm×1mm(实际栅格大小10m×10m)的方格对各因素图件进行栅格化。依据各因素分布情况进行预测指标的选取和指标状态的划分。采用层次分析法建立崩塌体危险性评价指标体系并计算其中各指标的因素权重,然后运用模糊综合评判法,得到研究区各崩塌体的危险性综合评价得分,建立基于层次分析-模糊综合评价的崩塌危险性评价数学模型。在此基础上,对枣乡峪乱石沟崩塌危险性进行分区。其结果可以用于指导该地区的矿山开采活动,并为土地规划提供依据,使政府决策部门在防灾减灾工作中更有针对性。
Based on the comprehensive analysis on geological conditions of Zhaoxiangyu Luanshigou in western Henan,this paper proposed the major factors for mine rock fall disaster,including joint development condition,terrain slope,empty condition and mining excavation.Utilizing the spatial analysis function of GIS,the map of each factor is rasterized by 1 mm×1 mm （practical size of the raster is 10 m×10 m） square grid.The prediction index is selected and the state of index is divided according to the distribution of each factor.Analytic hierarchy process （AHP） model is used to establish evaluation index system of collapse hazard zonation and calculate the weight of these factors and then obtained the risk comprehensive evaluation score of each collapse in the study area by fuzzy comprehensive evaluation（FCE）.Finally,a mathematical model based on AHP and FCE is established for collapse risk evaluation.On this basis,the collapse risk division for Zhaoxiangyu Luanshi gully is carried out and the result can guide mining activities and provide basis for land planning to make disaster prevention and reduction of government be more pertinent.
出处
《金属矿山》
CAS
北大核心
2010年第6期147-152,共6页
Metal Mine
基金
国家自然科学基金项目(编号:40872176)
作者简介
刘长春（1985-），女，中国地质大学（武汉）工程学院，博士研究生，430074湖北省武汉市。
