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DEVELOPMENT OF MINING THICK SEAMS OF COAL.
被引：0
作者：
Kis-Tamas, L.
Solymos, A.
机构：
来源：
Mining Engineer London
|
1983年
/
142卷
/
258期
关键词：
D O I：
暂无
中图分类号：
TD [矿业工程];
P61 [矿床学];
学科分类号：
0709 ;
081803 ;
0819 ;
摘要：
The paper briefly describes various methods of thick seam extraction from room and pillar methods to present-day longwall techniques. Thick seams provide an opportunity for vertical concentration and a possibility of selecting slices of 2. 5-3. 0 meters in thickness. Descending order of extraction is suggested, with caving behind shield supports and chemically consolidating the caved debris to form an artificial roof for the face below.
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页码：493 / 498
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