闭坑矿井采空区积水过程分析  

Analysis of water-filling process in goaf of closed mine

作　　者：毕尧山 吴基文[1] 王广涛[1] 翟晓荣[1] 张红梅[1] 黄凯[1] BIYaoshan;WU Jiwen;WANG Guangtao;ZHAI Xiaorong;ZHANG Hongmei;HUANG Kai(School of Earth and Environment, Anhui University of Science and Technology, Huainan 232001, China)

机构地区：[1]安徽理工大学地球与环境学院,安徽淮南232001

出　　处：《工矿自动化》2018年第6期53-57,共5页Journal Of Mine Automation

基　　金：国家自然科学基金资助项目(41272278);安徽高校自然科学重点资助项目(KJ2017A073;KJ2016A826);安徽高校科研平台创新团队建设项目(2016-2018-24)

摘　　要：为研究闭坑矿井采空区积水问题,以岱河煤矿为研究对象,根据该煤矿矿井地质、水文地质条件及已有工作面采空区探放水资料,选用回采空间法计算了该煤矿闭坑后采空区积水体积,并分析了闭坑后采空区积水过程。分析结果表明:(1)岱河煤矿闭坑后采空区积水体积共6 208 267.20m^3,包括4 808 923.58m^3的工作面采空区积水体积和1 399 343.62 m^3的废弃巷道积水体积。假设单位涌水量为80 m^3/h,预计3 233.47d后积水充满矿井。(2)岱河煤矿闭坑后积水高度H与时间td关系表达式为H=2×10^(-8)t_d^3-7×10^(-5)t_d^2+0.131 7t_d-415.29。In order to research water-filling problem in goaf of closed mine, taking Daihe Coal Mine as research object, mining space method was used to calculate water-filling volume in goaf of the closed mineaccording to geological and hydrogeological conditions of the coal mine as well as exploration and drainage data of previous working face goaf, and water-filling process in goaf of the closed mine was analyzed. The analysis results are as follows：① Total water-filling volume in goaf after Daihe Coal Mine being closed is 6 208 267.20 m^3, which includes 4 808 923.58 m^3in working face goaf and 1 399 343.62 m^3in abandoned roadways. If water bursting speed is 80 m^3/h, then the closed coal mine will fully filled with water after 3 233.47 days.② Relationship expressionbetween water-filling height （H ） and time （t d） is H=2×10^-8td^3-7×10^-5td^2＋0.131 7td-415.29.

关 键 词：煤炭开采 闭坑矿井 采空区积水 矿井水位回升 回采空间法 积水体积 积水过程 积水系数 

分 类 号：TD745[矿业工程—矿井通风与安全]