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| SUPERFICIAL VIEWS ON TIGHT-FILLING RATIO OF ASCENDING DRIFT-AND-FILL |
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Revised:June 15, 1998
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| DOI： |
| KeyWord:Drift-and-fill, Fill shrinkage, Tight filling, Tight-filling ratio |
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| Beijing General Research institute of Mining and Metallurgy |
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| Abstract: |
| Tight filling is one of main safety measures for ascending drift-and-fillmining. Tight-filling ratio as high as possible is a real need for safe use of this miningmethod. However, how high may the tight-filling ratio reach? In this paper, the mainfactors of influencing the tight-filling are analyzed and the top value of the tight-fillingratio under the condition of normal drift sections is discussed theoretically. |
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