Numerical simulation of the migration laws of supports and surrounding rock for coal seams of large dip angle
Abstract
SDIC Nileke mine district contains 6 minable seam layers, which is located in Xinjiang. The average 45º dip angle of mine results in complex process of the mining working face. Processes such as support moving and mining working face advance are restricted and affected. The lateral stress of the roof increases, at the same time the problem of controlling the working face roof are serious. Based on field actual conditions, FLAC 3D was used to simulate the process of excavation and supporting of the mining working face. This study can provide technical support for safety production through the reasonable support mode which was obtained by the simulation of mine pressure behavior of working face.
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