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Abstract Based on strata behaviors, repairing after digging, restricting production problems due to mine deep extension, according to the bolt support theory, Yunjialing Mine was taken as an example, high stress soft coal seam roadway support technology was explored. through optimizing support parameters, improving the support strength, optimizing anchor cable reinforcement, bottom grouting anchor cable reinforcement and coal chemical grouting technology, achieved efficient support roadway and bolt support technology development.
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