PDF(1626 KB)
Study on Pillar Design Formula of Mining Face with Partial W-type Ventilation
Zhang Han,Li Yingming,Yang Mingdong
Chinese Journal of Underground Space and Engineering ›› 2015, Vol. 11 ›› Issue (4) : 988-993.
PDF(1626 KB)
PDF(1626 KB)
Study on Pillar Design Formula of Mining Face with Partial W-type Ventilation
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