超高水材料开放式充填开采研究  

Research on Open Back-Filling with Highly-Water-Absorbing Material

作　　者：冯光明[1] 王成真[1] 李凤凯[2] 韩晓东[1] 周振[1] 连小林[1] 

机构地区：[1]中国矿业大学矿业工程学院,江苏徐州221116 [2]冀中能源集团陶一煤矿,河北邯郸056000

出　　处：《采矿与安全工程学报》2010年第4期453-457,共5页Journal of Mining & Safety Engineering

基　　金：国家自然科学基金项目(51074164)

摘　　要：针对我国建筑物下压煤充填开采技术在实际应用中存在的不足,本文通过对超高水材料基本性能的研究,提出进行采空区开放式充填开采,这可使具有高流动性的超高水材料浆液在岩层活动期内自行流入煤层开采后所形成的"采空"空间并在可控时间内胶结、凝聚,凝固后的充填体与垮矸以及围岩形成一完整的结构体来控制上覆岩层活动,从而达到有效减缓地面沉降的目的.研究结果表明:超高水材料是性能良好的采空区充填材料;超高水材料开放式充填开采技术是解放建筑物下压煤的一种先进的方法,是符合绿色开采方向的成果.Against the shortcomings in practical application of China＇s filling mining technology under buildings,open filling mining with highly-water-absorbing material is proposed by studying the basic properties of such material.In this way,the slurry of highly-water-absorbing material which has a high liquidity automatically affluxes into ＂goaf＂ area during the period of strata activity,and then it cements itself in an adjustable time.The highly-water-absorbing filling body with gangue and rock strata forms a complete structural element which can control the overlying strata activity and slow down the land subsidence effectively.The highly-water-absorbing material is a filling material with good performance in goaf and the technology of open filling mining with super high-water material is an advanced filling mining method under buildings and is also a result which conforms to the direction of green mining.

关 键 词：超高水材料 充填开采 开放式 充填体 岩层活动 

分 类 号：TD823.7[矿业工程—煤矿开采]