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.
引用
收藏
页码:493 / 498
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