整合煤矿采空区内掘进巷道注浆加固技术  

Grouting Consolidation Technlogy of Driving Roadway in Goaf of Integrated Coal Mine

作　　者：苏清政 杨榆生 潘越[2] 韩卫青 侯玮[2] 

机构地区：[1]山西煤炭进出口集团有限公司,山西太原030006 [2]河北工程大学,河北邯郸056038

出　　处：《煤炭科学技术》2013年第7期51-53,共3页Coal Science and Technology

摘　　要：针对整合煤矿宏远煤矿总回风巷掘进通过采空区时巷道支护难的现状,采用在巷道掘进前进行高冒区充填注浆的技术方法,提高破碎矸石整体粘结力进而构成人工顶板,掘进时钻孔超前注浆提高采空区围岩强度。现场实践证明,选用化学注浆加固材料进行注浆加固,片帮、顶板冒落现象明显改善,围岩变形得到了很好控制,两帮移近量为118～141 mm,顶底板移近量为123～133 mm。Due to roadway support difficulty of air return roadway pass through goal in integrated Hongyuan coal mine, the authors adopted the backfill and grouting technology in high caving area before the tunnel excavation, aiming at increasing the crushing gangue overall cohesion to form artificial roof, and improving the strength of surrounding rock in goaf during driving with advanced boreholes grouting.The site practice results showed that the rib and roof falling phenomenon obviously were improved when the chemical grouting reinforcement materials was used.The convergence of two sidewalls was 118- 141 ram, roof-to-floor convergence was 123 - 133 mm.

关 键 词：整合矿井 注浆加固 化学注浆 掘进巷道 采空区 

分 类 号：TD353[矿业工程—矿井建设]