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枣庄局山家林矿在沿空留巷中曾使用过矸石带,木垛、密集支柱,混凝土块及金属支柱等五种巷旁支护材料,本文对同一巷道内五种支护的实际支撑性能的对比测定结果作了评述。
Zaozhuang Bureau Hill House Mine in the gob-side entry lane used gangue belt, woodpile, dense pillars, concrete blocks and metal pillars and other five types of roadside support materials, the same roadway five kinds of support within the actual support performance The results of the comparison were reviewed.