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Keyword [Water-proof pillars]
Result: 1 - 3 | Page: 1 of 1
1.
A Study On The Engineering Geology Characteristics And On The Mechanics Of Water And Sand Bursting From The Overlying Strata Of Mining Coal Seam In Qidong Coalmine
2.
A Study On The Engineering Geology Characteristics And On Reasonable Scale Of Pillars For Protecting Water About The Overlying Strata Of Mining Coal Seam In Wugou Coalmine
3.
Study On The Feasibility Of Narrowing The Protective Pillaring In The Fully Mechanized Mining Face Under The Aquifer
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