Technology and engineering test of filling goaf with coal gangue slurry
[ad_1] Background of low-level grouting filling test Dahaize Coal Mine is located west of Yuyang District, Yulin City, Shaanxi Province. The industrial site of the mine and the coal preparation plant are arranged separately and connected by a 3.0 km trestle. The designed production capacity of the mine is 15.0Mt/a, which adopts full vertical shaft development […]
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