万福矿井深部巷道过富水灰岩层预注浆治理技术  

Pregrouting treatment technology for overwater-rich limestone layer in deep roadway

作　　者：吕文茂[1] 钱自卫[2] 孟凡贞 范宝江 LV Wenmao;QIAN Ziwei;MENG Fanzhen;FAN Baojiang(Yanzhou Coal Mining Co.LTD,Zoucheng273500,China;School of Resources and Earth Sciences,China University of Mining and Technology,Xuzhou221116,China;Yanmei wanfu energy co.,LTD.,Heze274900,China)

机构地区：[1]兖州煤业股份有限公司,山东邹城273500 [2]中国矿业大学资源与地球科学学院,江苏徐州221116 [3]兖煤万福能源有限公司,山东菏泽274900

出　　处：《煤矿现代化》2021年第5期37-39,共3页Coal Mine Modernization

基　　金：国家自然科学青年基金(41602299)资助

摘　　要：万福矿井三灰埋深大、承压高、富水性较强,-820水平多条深部仓巷穿越三灰施工。以万福矿井-820水平回风大巷为例,设计选用工作面预注浆方法治理三灰水害,并对注浆帷幕厚度、注浆钻孔、浆液选择、注浆压力、施工工艺等进行具体设计,通过检查孔及实际开挖检验,矿井深部巷道过富水灰岩层预注浆治理效果较好。The third layer of Wanfu Coal Mine has a large depth of limestone,high water pressure and strong water wealth.Many deep roadways at the level of-820 need to pass through the third layer of limestone.Taking aroadway at the level of-820 in Wanfu mine as an example,the method of pre-grouting at the working face is adopted to control the water damage of the third layer of limestone,and the thickness of grouting curtain,grouting borehole,slurry,grouting pressure and construction technology are designed.The grouting effect is better through inspection hole and actual excavation test.The experience of pre-grouting treatment for water-rich limestone strata in deep roadway of Wanfu mine can be used for reference for the treatment of similar water disasters.

关 键 词：深部巷道 三灰含水层 工作面预注浆 封水帷幕 

分 类 号：TD743[矿业工程—矿井通风与安全]