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(一)前言 开采比较厚大的倾斜矿体或倾斜矿段,如何减少其下盘矿石损失并妥善处理空区问题?这是关系到矿山安全和经济效益,以及资源利用的重要课题。 在国内化工和冶金等部门的地下矿山,倾斜矿体均占有较大比重,通常多用空场法或崩落法开采,针对如何减少下盘损失等问题,国内外都很重视寻求新的采矿方法(如试验分段留矿崩落法),研究采用一些专门
(I) Preface How to reduce the loss of ore in the footwall and properly handle the problem of empty areas when mining thicker inclined ore bodies or inclined ore sections? This is an important issue that concerns the safety and economic benefits of mines and the utilization of resources. In the domestic chemical industry and metallurgy and other departments of underground mines, inclined ore bodies account for a large proportion, usually more than empty field or caving method mining, how to reduce the lower plate loss and other issues, both at home and abroad attach great importance to the search for new mining methods Such as the test sub-subsidence caving method), the study uses a number of specialized