We propose a new mining method: point-pillar paste filling based on the combined advantages of room-pillar method and backfilling.
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。
The continuous wall junctions are connected by the methods of junction pipe method, junction plate method and section steel pillar method and good effectiveness has been gained.
连续墙墙段接头采用接头管法、接头板法和型钢柱法，均取得了较好的效果。
The continuous wall junctions are connected by the methods of junction pipe method, junction plate method and section steel pillar method and good effectiveness has been gained.
连续墙墙段接头采用接头管法、接头板法和型钢柱法，均取得了较好的效果。
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