大倾角自燃煤层采空区大面积注浆技术研究  

Technology research of large- scale grouting in the goaf of large dip angle self- ignite coal seam

作　　者：周长超 刘森[1] 张志红[1] 

机构地区：[1]淄博矿业集团有限责任公司许厂煤矿,山东济宁272173

出　　处：《山东煤炭科技》2014年第4期97-99,共3页Shandong Coal Science and Technology

摘　　要：许厂煤矿3下煤层倾角大、厚度大、具有自然发火倾向,在综放过程中,采空区内遗煤多易自然发火。因此,本文研究将固化的高强度、低成本和防灭火性能好的材料制作成可以压注的轻质高效无机浆液,通过注浆管路系统注入采空区,以密实充填煤体的缝隙,堵住漏风供氧通道,同时惰化煤体的氧化性能,延长煤体自然发火周期,为采空区注氮、注液态二氧化碳等综合防火措施提供条件。In Xuchang Coal Mine,3 coal seam with large dip angle and thickness,has the spontaneous combustion tendency,in the process of minning fully mechanized top coal caving,missing coal in goaf is easy self- ignite.Therefore,this paper studies the high consolidation strength,low cost and good performance of antifire materials.injected into the goaf by grouting pipe system to fill the fracture of gaps and seal the air supply channel,at the same time idle oxidation performance of coal,to extend the coal spontaneous combustion period,provide the conditions for injection nitrogen and liquid carbon dioxide in goaf.

关 键 词：大倾角自燃煤层 采空区 横向大面积注浆 

分 类 号：TD752.2[矿业工程—矿井通风与安全]