STUDIES ON THE LAW OF ROOF-COAL MOVEMENT BY USING THE ROOF-COAL CAVING METHOD

被引：0
|
作者：
张海戈
徐秉业
沈新普
王志勤
机构：
来源：
JournalofCoalScience&Engineering(China) | 1996年 / 02期
关键词：
roof-coal caving; roof-coal movement; end-face stability control;
D O I：
暂无
中图分类号：
P618.11 [煤];
学科分类号：
摘要：
In this paper, the law of roof-coal movement has been investigated through the field measurement, theoretical analysis and numerical calculation. Several results, which are of important values for caving process, design of the supports, controlling end-face stability, raising recovery rate, realizing working face high output and other related aspects in practice, have been obtained. These results mainly include the following: roof-coal breaking curve of soft-coal seam, roof-coal movement curve of soft-coal and medium-hard coal seam, and roof-coal movement equation. The roof-coal caveability has been analyzed.
引用
收藏
页码：39 / 43
页数：5
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