超高水材料开放式充填开采覆岩控制研究  

Research on overburden strata control using a super high water content material during open back fill mining

作　　者：冯光明[1] 贾凯军[1] 李风凯[1,2] 殷术明[1] 王洪海[3] 

机构地区：[1]中国矿业大学矿业工程学院煤炭资源与安全开采国家重点实验室,江苏徐州221116 [2]邯郸矿业集团陶一煤矿,河北邯郸056300 [3]河南煤业化工集团焦煤集团,河南焦作454002

出　　处：《中国矿业大学学报》2011年第6期841-845,共5页Journal of China University of Mining & Technology

基　　金：国家自然科学基金项目(50774077)

摘　　要：以陶一矿超高水材料开放式充填开采为背景,介绍了超高水材料开放式充填开采效果的评价方法,并对其覆岩控制效果进行了分析和评价.结果表明:超高水材料的渗透效果与存在裂隙的多少及其导通性有关.采用该方法进行充填开采后,充填率可接近90%,覆岩控制效果良好,地表未发生明显变化,采空区及其顶底板岩层中几乎所有导通的缝隙和部分离层空间都被超高水材料充填密实,工作面瓦斯含量也有明显降低.Materials containing large amounts of water have been used for back filling mined areas.Open back fill mining has been conducted at the Tao-one coal mine in China.The effects of using ＂super high water content＂ material in the back fill have been evaluated in this mine.The results show that the permeation of the material is related to the number of existing cracks and their degree of mobility.The fill can be nearly 90% using this technology and the overburden of the mined out area is effectively controlled.The surface above the area did not show significant changes,the gob and most of the conduction gap,and part of the space in the roof and floor strata,were densely filled by the super high water content material.The gas content of the face was also clearly reduced.

关 键 词：超高水材料 开放式 覆岩控制 渗透 固结 

分 类 号：TD325[矿业工程—矿井建设]