摘要
介绍镇城底矿 5年来沿空窄煤柱掘巷的经验 ,提出最佳留设煤柱宽度为 3m以下 。
Introduces the experience of leaving narrow coal pillar along worked out area in exca- vation;Apoint that optimuzation value of pillar is limeted in 3m scope in Zhenchengdi coal mine.
出处
《西山科技》
2000年第6期4-6,共3页
Xishan Science & Technology
关键词
沿空掘巷
采空区
煤层
顶板
护巷煤柱
支护
Excavation along worked out area Narrow coal pillar Optimuzation
