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| A Mine Goaf Filling Body Surface Fine Mud Inhibition Studies |
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Received:September 11, 2013
Revised:September 15, 2013
Accepted:September 16, 2013
Published Online:February 12, 2015
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| DOI： |
| KeyWord:fine tailings; settling speed; impermeable layer of fine mud; flocculation |
| Author | Institution |
| Zhang Lei |
The Faculty of Land Resource Engineering,Kunming University of Science and Technology Kunming |
| Lv Lixing |
China |
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| Abstract: |
| Underground goaf use fine-grained tailings filling, fine-grained tailings tend to form a thin layer of fine mud on the surface of backfill, fine mud impermeable layer prevents the clarified water above the surface of the filling penetration down, affecting the quality of filling body. Backfilling materials by fine grain filling in the underground mine-out area and its filling body surface subsidence model study of the mechanism of fine clay impermeable layer. Through the experimental study, use of flocculants can inhibit the filling body surface formation of fine clay aquiclude. Different flocculants have different effect. From the consideration on the economy and the effect, choose alum as flocculant is more advantageous. |
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