陕北某井田保水采煤最大采高探讨  

Discussion on maximum mining height of coal mining under water-containing condition in one mine field of northern Shaanxi province

作　　者：王悦[1,2] 夏玉成[1] 杜荣军[1] 

机构地区：[1]西安科技大学地质与环境学院,陕西西安710054 [2]陕西煤业化工技术研究院有限责任公司现代煤炭开采技术研究所,陕西西安710065

出　　处：《采矿与安全工程学报》2014年第4期558-563,568,共7页Journal of Mining & Safety Engineering

基　　金：国家国际科技合作专项资助项目(2012DFG71060);陕西省科技计划资助项目(2011K17-02-05)

摘　　要：如何在保护生态潜水的前提下合理开采煤炭资源,即实施"保水采煤",是陕北能源化工基地建设中迫切需要解决的技术难题。采用数值模拟方法,以陕北某井田为剖析对象,研究了不同采高条件下导水裂隙带的发育规律及其对生态潜水的影响程度。研究表明,导水裂隙带发育高度主要受采高控制;为了实现"保水采煤"目标,在研究区宜采用分层限高间歇式开采技术。据此对整个井田进行了限采高度的合理分区,为研究区分层开采最大采高的确定提供了依据。How to exploit coal resources under the premise of protecting the ecological diving, namely, the implementation of“coal mining under water-containing condition”, is a urgent technical problem to be solved in the construction of energy and chemical bases in Northern Shaanxi. Based on numerical simulation, taking a mine field in Northern Shaanxi as the research object, the growth regulation of wa-ter flowing fractured zone and the influence on ecological diving under different mining height were studied in this paper. The results show that the development height of water flowing fractured zone is mainly affected by the mining height. In order to realize the goal of “coal mining under wa-ter-containing condition”, slice and limit-height mining technology should be used in the study area. Based on this, the whole field is reasonably devided by limit mining height, which provides reference to ascertain the maximum mining height of slice mining.

关 键 词：保水采煤 导水裂隙带 最大采高 数值模拟 

分 类 号：P641.4[天文地球—地质矿产勘探]