沙基型浅埋煤层保水开采工程实践研究  

Research on the engineering practice of aquifer-protective mining in the shallow sand-bed-rock coal seam

作　　者：刘玉德[1] 张东升[2,3] 范钢伟[2,3] 

机构地区：[1]华北科技学院安全工程学院,北京101601 [2]中国矿业大学矿业工程学院,江苏徐州221116 [3]中国矿业大学煤炭资源与安全开采国家重点实验室,江苏徐州221008

出　　处：《湖南科技大学学报（自然科学版）》2011年第1期15-20,共6页Journal of Hunan University of Science And Technology：Natural Science Edition

基　　金：华北科技学院科研基金(A09002);教育部新世纪优秀人才支持计划(NECT-05-0480);国家自然科学基金(50374065);中国矿业大学科技基金(200513002)

摘　　要：以神东矿区2-2煤层为研究对象,通过分析浅埋煤层保水开采机理和关键,以"综合分类指标分析法"、以导水裂隙带高度作为分类的综合指标、以采高、顶板厚度、岩体完整性及强度等作为综合分类指标的相关因素,对比基岩厚度与导水裂隙带高度,将沙基型浅埋煤层保水开采适用条件划分为七类,初步形成浅埋煤层保水开采的"分类体系";通过对各分类采高、开采速度、支护力、局部处理措施等的分析与计算,初步形成沙基型浅埋煤层保水开采的"技术体系".以大柳塔煤矿12404工作面过强含水区域为保水开采工程实例,对照"分类体系"标准划分了5个分区,对照"技术体系"标准选取各分区开采的技术参数及措施,实验结果表明,观测点水位经下降、回升后趋于稳定,工作面安全通过富水区域.Based on the domestic and foreign research conclusion and based on the 2-2 coal seam as the research object,with ＂comprehensive classification index analysis＂,to take conducting water fracture zones height as classification comprehensive index,and to take mining height,roof thickness,rock body integrity and strength as related factors of comprehensive classification index,the applicable condition of aquifer-protective mining in shallow coal seam was divided into seven categories by contrasting bedrock thickness and conducting water fracture zones height.So the shallow coal seam aquifer-protective mining ＂classification system＂ was initially formed.Based on the analysis and calculation about mining height,mining speed,supporting force,local processing measures of each classification,the shallow coal seam aquifer-protective mining technique system was initially formed too.For practical engineering example of aquifer-protective mining,12404 working face through strong-water-area of Daliuta mine was divided five subareas by contrasting ＂classification system＂ standard and each subarea mining technical parameters and measures may be selected by contrasting ＂technical system＂ standard.Experimental results show that the water level of observation sites are more stable after descending and ascending,and working face safety passes through strong-water-area.

关 键 词：浅埋厚煤层 保水开采 综合指标分类 导水裂隙带 工程实践 

分 类 号：TD82[矿业工程—煤矿开采]