缓倾斜煤层工作面回采上限优化计算研究  

Research on Increasing of Mining Upper Limit for Gently Inclined Coal Seam

作　　者：胥克俊 

机构地区：[1]中电投宁夏青铜峡能源铝业集团有限公司,银川750000

出　　处：《煤炭技术》2016年第12期75-77,共3页Coal Technology

基　　金：国家自然科学基金资助项目(41602254);国家自然科学基金资助项目(41302214)

摘　　要：为了确定红一煤矿首采工作面合理回采上限,确保煤柱宽度既能满足抵御风氧化带侧向静水压力的要求,又能保证顶板含水层与导水裂缝带不能贯通,同时还能尽可能多地解放呆滞煤量,在考虑煤层倾角、导水裂缝带高度、岩移影响带等多种因素的前提下,分别采用常规计算方法和优化计算方法计算了首采工作面防隔水煤岩柱,最终确定了红一煤矿首采工作面回采上限。A walerproof pillar should be set between the effloreseent oxygenized belts and the fist mining working face. In order to ensure that waterproof pillar＇s width not only meets the requirements of resistance the hydrostatie pressure frome the efflorescent oxygenized belts, but also meets the requirements of ensuer that the water flowing fractured zone couldn＇t unicome the paleogene aquifers, in consideration of the coal seam dip angle, under the premise of a variety of factors crevice belt height, beh roek movement infhlenee, optimization of the first anti-impermeable coal pillar mining face, in order to finalize the waterproof pillar outeome leaving in pillar basis.

关 键 词：风氧化带 回采上限 导水裂缝带 防隔水煤岩柱 

分 类 号：TD823[矿业工程—煤矿开采]