邯邢矿区奥陶系灰岩上部注浆改造技术  

Technical feasibility of grouting reform for upper part of Ordovician limestone in Xingtai and Handan coal mining areas

作　　者：南生辉[1] 

机构地区：[1]煤炭科学研究总院西安研究院,陕西西安710054

出　　处：《煤田地质与勘探》2010年第3期37-40,共4页Coal Geology & Exploration

摘　　要：注浆改造是华北型煤田下组煤开采的有效防治水技术之一。但是目前该项技术只能解决浅部上组煤问题,随着采深的增大,注浆改造煤层底板薄层灰岩含水层已不能满足安全开采条件。以东庞矿下组9号煤开采为例,分析了奥陶纪峰峰组岩溶含水层富水特征,研究了对奥陶系顶部进行注浆改造的可行性和相关技术问题,得出,对东庞矿奥灰上部进行注浆改造在技术上是可行的,合理的注浆改造厚度为40 m。试验性注浆结果表明,钻孔涌水平均堵水率达到74%,注浆效果良好,并提出了下一步防治水工作建议。Grouting reform is one of effective technologies for water prevention and control in mining lower coal seams in north China coal mines.But this technology can only be applied in mining shallow lower coal seams at present,with the mining depth increase,grouting reform for thin limestone aquifer under coal seam floor can not meet the conditions for safe mining.With mining lower coal seam No.9 in Dongpang mine for example,water-rich characteristics and grouting reform technology of karst aquifer in Ordovician Fengfeng Formation have been detailed and discussed in this paper,the conclusions show that grouting reform for the upper part of Ordovician limestone in Dongpang mine is technically feasible,the thickness of grouting reform is 40m.Grouting tests showed： 74 percent of water amount was reduced,grouting result was good,and next work proposals of water prevention and control were put foward.

关 键 词：下组煤 奥陶系石灰岩 注浆改造 含水层 

分 类 号：TD74[矿业工程—矿井通风与安全] P641.4[天文地球—地质矿产勘探]