... pillar and breast method 房柱式井采法 pillar and post work 柱式开采 pillar blast 煤柱爆破 ...
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将房柱式开采和膏体充填开采的优点相融合，提出了点柱式膏体充填采煤方法。
We propose a new mining method: point-pillar paste filling based on the combined advantages of room-pillar method and backfilling.
国外高产高效矿井建设是以单一煤层长壁和房柱式综合机械化为主要开采技术。
The main technology to realize high production and high efficiency in abroad is fully mechanized long-wall mining for a single seam or room-and-pillar mining.
本文研究对减小煤柱尺寸，提高房柱式采煤回采率具有明显的理论指导意义，对解决我国生产矿区面临的不规则区段煤层开采问题具有实际意义。
These studies have evident theoretical significance to decrease coal pillar size and enhance recovery ratio, and practical importance to solve the problems of irregular seam mining in our country.
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