Researching on grouting material in Chensilou coal mine

Mine water-irruption is the second to gas explosion of major security problems. Through studying Chensilou coal mine geological structure, hydrogeological condition and the mine water distribution, the grouting technology, the reasonable grouting scheme was brought. Two sorts of grouting materials c...

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Bibliographic Details
Published in:Materials research innovations 2015-05, Vol.19 (sup5), p.S5-454-S5-457
Main Authors: Feng, Y.-l., Liang, L., Duan, L.-h., Li, J.-l.
Format: Article
Language:English
Subjects:
Cement
Cements
Chensilou coal mine
Coal
Coal mines
Diffusion
Fly ash
Grouting
Grouting material
Limestone
Slurries
Water bursting
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Summary:Mine water-irruption is the second to gas explosion of major security problems. Through studying Chensilou coal mine geological structure, hydrogeological condition and the mine water distribution, the grouting technology, the reasonable grouting scheme was brought. Two sorts of grouting materials coal fly ash and cement, and pure cement material have been tested. Through the comparative and analysis, the compressive strength of limestone by injecting pure cement can reach 40-44 MPa. At the same time, limestone injected with fly ash and cement mixing material is relatively lower 14.3-16.3 MPa. The diffusion radius of injecting fly ash and cement mixed material slurry comes to more than 33 m, but the diffusion radius of injecting pure cement slurry material is 20-30 m.
ISSN:1432-8917
1433-075X
DOI:10.1179/1432891714Z.0000000001130