厚松散含水层煤层开采突水溃沙防治技术

发布时间：2018-05-02 13:18

本文选题：神东矿区 + 厚松散含水层　；参考：《煤炭科学技术》2016年08期

【摘要】：为了有效解决神东矿区薄基岩厚松散含水层煤层开采突水溃沙难题,以哈拉沟煤矿22206工作面为例,分析工作面开采所面临的水害情况,针对地面施工注浆工程存在受地表条件限制大、施工干扰多、工程费用高及对地表生态环境破坏的实际问题,提出了井下疏放水与注浆加固相结合的治理方法,并在此基础上形成了"疏注结合、先疏后注、边治边探、先治后采"的突水溃沙防治技术路线,在哈拉沟煤矿应用结果表明:井下疏水注浆技术实施之后工作面少数支架间有淋水滴沙现象,采空区涌水中携带有少量泥沙,对工作面正常回采无影响,其余地段均未出现流沙现象,该技术达到了最优的治理效果。
[Abstract]:In order to effectively solve the problem of water bursting and sand bursting in coal seam mining of thin bedrock thick loose aquifer in Shendong mining area, taking 22206 face of Haragou Coal Mine as an example, the situation of water hazard in mining face is analyzed. In view of the practical problems of the surface construction grouting project which is limited by the surface condition, more construction interference, high engineering cost and damage to the surface ecological environment, the paper puts forward the treatment method of the combination of underground drainage and grouting reinforcement. On the basis of this, the technical route of water inrush and sand burst prevention and control has been formed, which is "combination of thinning and grouting, first thinning and then injecting, exploring while managing and exploring, first treating and then collecting". The results of application in Hagou Coal Mine show that after the implementation of underground hydrophobic grouting technology, there is a phenomenon of dripping sand among a few supports in the working face, and a small amount of sediment in the gushing water in the goaf has no effect on the normal mining of the working face. There is no quicksand phenomenon in other areas, and the technology achieves the best control effect.
【作者单位】：神华神东煤炭集团有限责任公司;
【基金】：国家自然科学基金资助项目(41272388) 西安科技大学培育基金资助项目(201607)
【分类号】：TD745

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