• 河矿综采工作面巷道采用顺序开采的回采方。选用7200/23/38 A型式支架巷道进行超前支护,实践中提出了支护过程中存在的几点问题并提出了改进意见

    Sequential mining is utilized in the fully-mechanized face in Sihe mine. 7200/23/38A chock support is used in entry, some problems on its usage and related improvement opinions are put foreward.

    youdao

  • 河矿综采工作面巷道采用顺序开采的回采方。选用7200/23/38 A型式支架巷道进行超前支护,实践中提出了支护过程中存在的几点问题并提出了改进意见

    Sequential mining is utilized in the fully-mechanized face in Sihe mine. 7200/23/38A chock support is used in entry, some problems on its usage and related improvement opinions are put foreward.

    youdao

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