VARIOUS ASPECTS OF LONGWALL ROOF SUPPORT.

被引：0
|
作者：
Wilson, Arthur H.
机构：
来源：
| 1978年 / 226卷 / 04期
关键词：
LONGWALL MINING;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
After discussing the basic concepts involved in the behavior of strata around longwall faces, the author explains how to set yield loads in both level and inclined seams, and then deals with control of weak roofs. Various types of longwall roof supports are surveyed, including powered and shield supports, and future work in longwall roof supports is outlined.
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页码：50 / 54
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