复杂地质条件下沿顶掘巷实践
Zhongzhou Coal(2012)
Abstract
对大平煤矿11205复采面复杂地质条件进行了分析,确定11205复采面回风巷采用U型钢可缩性支架支护,沿顶掘巷,制订了一套较为系统、完善的施工流程,保证了巷道的准确贯通和工作面的顺利回采,且经济效益良好。
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