Mechanism of piper gas emissions from coal seams

被引：0
|
作者：
S. V. Kuznetsov
V. A. Trofimov
机构：
[1] Russian Academy of Sciences,Institute of Problems of Complex Development of Bowels
来源：
Journal of Mining Science | 2004年 / 40卷
关键词：
three-dimensional stress state; zone of discontinuity;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Effect of sudden squeezing of mined-out coal seam on piper gas emissions into a mine working is described. The boundary problem is formulated for gas filtration from squeezing zone into the worked-out space, and the results of numerical calculations are cited. The coal seam permeabilities that give rise to appearance of technogenic pipers are evaluated.
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页码：339 / 344
页数：5
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