薄基岩浅埋煤层保水开采技术研究  

Aquifer-protective Mining Technology in Shallow Coal Seam with Thin Bedrock

作　　者：马立强[1] 张东升[1] 刘玉德[1] 王安 赵永峰 郑铜镖 

机构地区：[1]中国矿业大学南湖校区矿业工程学院 [2]神东煤炭分公司,陕西神木719315

出　　处：《湖南科技大学学报（自然科学版）》2008年第1期1-5,共5页Journal of Hunan University of Science And Technology：Natural Science Edition

基　　金：教育部新世纪优秀人才支持计划(NCET-05-0480);江苏省普通高校研究生科研创新计划项目;煤炭资源与安全开采国家重点实验室2007年开放基金项目;中国矿业大学科学研究基金项目(2005B002);中国矿业大学煤炭资源与安全开采国家重点实验室2007年开放基金资助项目(07KF09)

摘　　要：薄基岩浅埋煤层开采过程中顶板基岩易全厚切落,破断直接波及地表,存在顶板突水的安全隐患.在分析顶板导水通道特征基础上,针对浅埋煤层采用传统技术实现保水开采的难点,从开采方法本身采取措施,提出了一套较为系统的薄基岩浅埋煤层保水开采新技术.此项技术的关键有三:一是长壁工作面快速推进;二是支架合理支护阻力的计算确定;三是局部降低采高或局部充填.补连塔煤矿32201工作面的三维固-液耦合数值模拟计算和现场实践结果证明,该套技术的应用是成功而有效的,可在薄基岩浅埋煤层保水防溃开采中推广应用.图4,表1,参12.There is hidden safety problem of roof water inrush in the shallow coal seam with thin bedrock during mining, because its roof bedrocks break and fall in a whole and affects ground surface directly. To solve the tradition technique difficulties of aquifer-protective mining in the shallow coal seam with thin bedrock, based on the analysis of the roof water inrush channel features, from the aspect of mining methods. A set of roof aquifer-protective mining techniques were put forward. There were three key aspects in this technique： （ 1 ） rapid mining of longwall coalface; （2） calculation to determine the reasonable supporter resistance; （3） reduce mining height partially or filling partially. The results of 3-dimensional Solid-liquid numerical simulation and field practice of 32021 coal face in Bulianta coal mine showed that the technique is opened up successfully, which can be applied in roof water inrush control and aquifer-protective mining in shallow coal seam with thin bedrock.

关 键 词：薄基岩 浅埋煤层 保水开采 快速推进 支护阻力 降低采高 充填 

分 类 号：TD325[矿业工程—矿井建设]