摘要
针对塔然高勒煤矿3煤顶板侏罗系中统~中下统含水层涌水危险性分区评价问题,利用层次分析法赋予含水层厚度、岩心采取率、脆塑性岩厚度比、渗透系数等含水层富水性影响因素权重值,并将各影响因素及其权重耦合,引入"富水性指数"建立侏罗系中统~中下统含水层涌水危险性评价模型,结合钻孔单位涌水量对富水性分区进行检验,并通过修正各影响因素权重,直至富水性分区评价结果符合实际水文地质条件。结果表明,矿井顶板涌水危险性由东南向西北逐渐降低,东南部顶板涌水危险性较高。
This paper is aimed at the evaluation of the risk of water gushing in the middle and lower Jurassic aquifers in the coal roof of Tarangaole Coal Mine,the weight values of the water-rich influencing factors such as aquifer thickness,collecting rate of drill core,thickness ratio of brittle-plasticity,permeability coefficient are given by the analytic hierarchy process.The factors coupled with their weight values,and a model for evaluating the risk of water inflow of the middle and middle-lower Jurassic aquifers is established by introducing water-richness index.According to the unit water inflow of borehole,the water-rich zone was tested,and the weight of each influencing factor was modified until the evaluation result of water-rich zone was in line with the actual hydrogeological conditions.The results show that the risk of mine roof water inrush decreases gradually from southeast to northwest,while the risk of mine roof water inrush is higher in the southeast.
作者
黄欢
朱宏军
HUANG Huan;ZHU Hongjun(China Coal Technology and Engineering Group Xi’an Research Institute,Xi’an 710077,China;Key Laboratory of Preventing Coal Mine Water Hazard of Shaanxi Province,Xi’an 710077,China)
出处
《煤矿安全》
CAS
北大核心
2020年第2期192-196,共5页
Safety in Coal Mines
基金
国家自然科学基金青年科学基金资助项目(41402220)
国家自然科学基金资助项目(41807221)
陕西省自然科学基础研究计划资助项目(2018JQ5150).
作者简介
黄欢(1988—),男,研究实习员,硕士,2017年毕业于煤炭科学研究总院,主要从事矿井水文地质等方面的研究工作。
