连续采矿顶板诱导崩落综合技术的研究与应用

对大型矿体的开采,用充填的采矿方法成本较高,对有些矿体的开采不可行,而传统的空场法或崩落法存在资源整体回收率低、后期地压难控制等问题。对此采用我国著名采矿专家古德生院士提出的"以矿段为回采单元、矿段间不留矿柱"的连续开采方式,并相应地用一定的诱导工程崩落处理顶板以释放地压,通过在广西大厂铜坑矿92号矿体的工业试验最终有效地提高了资源的回收率,并用经济安全的工程手段成功控制了大的地压灾害的发生。

Research and Application of Successive Mining-derivational-roof Caving Polytechnic

To mine large-scale orebody,the filling method is nonviable because of economic reason,and problems such as lower unitary reclamation rate of resources and difficult control on later stage's ground pressure and so on will occur by traditional open stope method or caving method.To solve these problems,successive mining method which treats the ore segments as mining units and there is no jamb between ore segments,proposed by professor Gu Desheng whom is the famous specialist and Member of Chinese Academy of Engineering,should be adopted.And accordingly definite derivational engineering to cave rock roof may be done on purpose to release ground pressure.Through the industrial experimentation on 92# orebody of Tongkeng Mine in Guangxi,it proved to increase the reclamation rate of resources availably and large ground pressure disaster was controlled successfully via economical and secure engineering means.