SAFETY UNDERGROUND - LONGWALLING UNDER DIFFICULT CONDITIONS IN UNITED-STATES COAL-MINES

被引：0
|
作者：
MARK, C [1 ]
DEMARCO, MJ [1 ]
机构：
[1] US BUR MINES,DENVER RES CTR,DENVER,CO
来源：
CIM BULLETIN | 1993年 / 86卷 / 969期
关键词：
COAL MINING; UNDERGROUND MINING; BUMP HAZARD; SANDSTONE CHANNELS; SAFETY; ROCK MECHANICS; MINE ENGINEERING; MINE DESIGN;
D O I：
暂无
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The longwalls at United States coal mines have earned a reputation as the most productive in the world. Yet many have achieved success despite difficult natural conditions, including pillar bumps, face bursts, horizontal stress, sandstone channelling, and excessive gas emissions. This paper focusses on the experiences at several exceptional longwalls in Pennsylvania Kentucky, Alabama, and Utah The innovative engineering strategies developed in each case, including pillar design, stress control, geologic evaluation, equipment selection, and borehole degasification, are discussed.
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页码：31 / 38
页数：8
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