华北型煤田古风化壳隔水性能影响因素的灵敏度分析  

Sensitivity Analysis of Influencing Factors on Water-repellent Performance of Weathered Crust in North China Coal Field

作　　者：牛鹏堃 李哲 曾一凡 刘守强 宫厚健 闫猛 NIU Peng-kun, LI Zhe, ZENG Yi-fan, LIU Shou-qiang, GONG Hou-jian, YAN Meng(National Engineering Research Center of Coal Mine Water Hazard Controlling, China University of Mining and Technology（Beijing）, Beijing 100083, China)

机构地区：[1]中国矿业大学(北京)国家煤矿水害防治工程技术研究中心,北京100083

出　　处：《煤炭技术》2018年第8期103-105,共3页Coal Technology

基　　金：国家自然科学基金(41702261);中国博士后科学基金(2016-M601172);武汉市‘黄鹤英才计划’联合资助项目(2016YCT20)

摘　　要：华北型煤田下组煤下伏巨厚奥灰强含水层,且煤层距奥灰含水层较近,受奥灰突水威胁严重,部分区域奥陶系顶界存在具有一定隔水性能的古风化壳。为研究古风化壳隔水性能的控制因素及其影响程度,建立了古风化壳隔水性能评价指标体系,运用层次分析法确定各指标相应权重,利用计算出的"隔水性指数"绘制隔水性分区图。采用灵敏度分析法来验证初始权重的合理性,以各因素权重变化后隔水性分区图面积变化率来量化影响程度。The coal mining under the coalfield in north China is facing the next huge thick strong Ordovician aquifer. Since the lower coal seam is near the Ordovician aquifer, the floor is thin and threatened by serious water inrush. In some areas, the top of the Ordovician contains an ancient weathering crust. In order to study the controlling factors and influence degree of ancient weathered crust water-barrier performance, established the evaluation index system of ancient weathered crust water-barrier performance, and used the analytic hierarchy process to determine the corresponding weight, and the water barrier partition diagram was drawn by using the ＂water barrier index method＂. When the weight of each factor changed, the response of the partition diagram was observed. The degree of influence was quantified by the rate of change of the partition area and the rationality of the initial weights was verified by sensitivity analysis.

关 键 词：古风化壳 隔水性能模型 隔水性指数 灵敏度分析 

分 类 号：TD745[矿业工程—矿井通风与安全]