Numerical analysis of the effects induced by normal faults and dip angles on rock bursts - 07/09/17
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Abstract |
The study of mining effects under the influences of a normal fault and its dip angle is significant for the prediction and prevention of rock bursts. Based on the geological conditions of panel 2301N in a coalmine, the evolution laws of the strata behaviors of the working face affected by a fault and the instability of the fault induced by mining operations with the working face of the footwall and hanging wall advancing towards a normal fault are studied using UDEC numerical simulation. The mechanism that induces rock burst is revealed, and the influence characteristics of the fault dip angle are analyzed. The results of the numerical simulation are verified by conducting a case study regarding the microseismic events. The results of this study serve as a reference for the prediction of rock bursts and their classification into hazardous areas under similar conditions.
Le texte complet de cet article est disponible en PDF.Keywords : Normal fault, Dip angle of a fault, Strata behaviors, Instability of a fault, Rock burst
Plan
Vol 345 - N° 10
P. 690-705 - octobre 2017 Retour au numéroBienvenue sur EM-consulte, la référence des professionnels de santé.
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