Li Qingwang, Ren Fengyu, Hou Jianguang, Li Jiang. REGULARITY OF ROOF-FALL IN THE SOUTHERN WORKED OUT ZONE OF XISHIMEN IRON ORE MINEJ. CHINA MINING MAGAZINE, 2001, 10(3): 42-44.
Citation:
Li Qingwang, Ren Fengyu, Hou Jianguang, Li Jiang. REGULARITY OF ROOF-FALL IN THE SOUTHERN WORKED OUT ZONE OF XISHIMEN IRON ORE MINEJ. CHINA MINING MAGAZINE, 2001, 10(3): 42-44.
Li Qingwang, Ren Fengyu, Hou Jianguang, Li Jiang. REGULARITY OF ROOF-FALL IN THE SOUTHERN WORKED OUT ZONE OF XISHIMEN IRON ORE MINEJ. CHINA MINING MAGAZINE, 2001, 10(3): 42-44.
Citation:
Li Qingwang, Ren Fengyu, Hou Jianguang, Li Jiang. REGULARITY OF ROOF-FALL IN THE SOUTHERN WORKED OUT ZONE OF XISHIMEN IRON ORE MINEJ. CHINA MINING MAGAZINE, 2001, 10(3): 42-44.
REGULARITY OF ROOF-FALL IN THE SOUTHERN WORKED OUT ZONE OF XISHIMEN IRON ORE MINE
Based on measurement of rock's point-load strength and rock's structural profile,the stability of rockmass is classified into different grades.The roof-fall in the southern worked-out zone can be forecasted:it will occur in the future mainly in two modes——scattered or batchwise.
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