Improvement of the Technoogy of Steep Seam Working.

被引：0
|
作者：
Saratikyants, S.A.
机构：
来源：
Ugol' | 1979年
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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 extraction of coal from steep seams in the Donbas constitutes 13% of total underground production of mines managed by the Ministry of Coal Industry of the Ukrainian SSR. The seam bedding angles are 35-72 degree , their capacities are 0. 4-2. 2 m (0. 85 m average thickness). The specific weight of stoping faces in low-capacity (rif to 1. 2 m) seams amounts to almost 90%. The feasibility of mechanization of coal mining under these conditions is discussed; in particular the use of shield units.
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页码：21 / 27
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