摘要
山东枣庄某石膏矿经过多年的开采,在地下已形成大量采空区,且部分采空区来压明显,出现变形、破坏等垮落征兆,为避免酿成顶板大面积垮塌的严重灾害事故,拟对部分采空区强制放顶,并进行了爆破放顶的研究与设计。实践证明:人工强制放顶处理采空区,达到了预期的效果,并为后续采空区处理提供了依据。
A certain gypsum mine in Zao zhuang has been mining for many years,so that big area gob had been formed and rock pressure in parts of the gob is obvious,and some wall rocks have deformed and been destroyed.To avoid the worst harmful accidents of roof bulk caving,the measures of treating parts of the mined-out had been taken by forced caving method,and blasting scheme had been studied and designed.Practice has showed that the treatment of mined-out areas by artificial forced caving method has achieved prospective results and also found the base for the continual treatment of worked-out sections.
出处
《化工矿物与加工》
CAS
北大核心
2011年第4期33-35,40,共4页
Industrial Minerals & Processing
基金
山东省科技攻关资助项目(编号:20008GG10006016)
山东理工大学博士基金资助项目(编号:4041406026)
关键词
石膏矿
采空区处理
强制放顶
顶板大面积垮塌
gypsum mine
treatment of mined-out areas
forced caving
big area caving of roof
