| Autor: |
Zhai, X., Wu, J. |
| Zdroj: |
Continuum & Distinct Element Numerical Modeling in Geomechanics - 2013 (Proceedings of the 3rd International FLAC / DEM Symposium); 2013, p1-5, 5p |
| Abstrakt: |
By means of FLAC3D, this paper presents a case study of acceptable pillar size when mining towards a steep fault at the third coal seam of the Mengzhuang Coal Mine. The numerical models indicate that high stress can be continually built up in the mining front and in the adjacent area of the fault as the mining front is approaching the fault. High stress can even be overlapped when the pillar size reduces below the critical level. Meanwhile, displacement along the fault is gradually mobilized. A critical pillar width of 30m is indicated by the model in terms of the mining-induced stress and displacement in the pillar. This suggested acceptable pillar size has been used as a great support to mining design. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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