综放采区煤炭损失构成及对策分析  

ANALYSIS ON COAL LOSS IN MINING AREA AND ITS CONTROL IN SUBLEVEL CAVING

作　　者：孟金锁[1] 

机构地区：[1]煤炭科学研究总院

出　　处：《煤炭学报》1998年第3期305-309,共5页Journal of China Coal Society

摘　　要：分析了综放开采采区煤炭损失的构成和提高煤炭采出率的措施，明确了降低煤炭损失有提高煤炭损失部分的回收量和降低煤炭损失所占比率２个方面的含义，指出采用无煤柱开采及合理的放煤工艺可提高煤炭采出率，加大工作面几何参数可降低煤炭损失比率．探讨了放煤步距与顶煤厚度之间的关系，得出综放工作面最佳作业方式为一采一放工作方式，提出“原位”沿空掘巷的概念．Analysed coal loss of mining area and ways of control wholely, it is expounded that the implication of lessening coal loss, one of enhancing recovery of coal loss, the other of decreasing percentage of coal loss, it also points out pillarless mining and reasonable mining procedure can improve coal recovery,increasing geometical parameters of coalface can lessen coal loss rate. Discussed the relation of drawing interval and topcoal height at the first time, it is considered that the procedure of one cutting. one caving is the best working procedure in sublevel caving,in the meantime,it puts forward the concept of roadway driving along goaf.

关 键 词：综放开采 煤炭损失 放煤工艺 沿空掘巷 对策分析 

分 类 号：TD823.97[矿业工程—煤矿开采] TD82－9[矿业工程—矿山开采]