Numerical Simulation of Bolt-Mesh-Anchor Support Technology at Soft Rock Roadway

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Abstract:

The roof of 12501 transportation roadway of Tunlan mine is friable. To solve the problem of large roadway deformation, the bolt-mesh-anchor support scheme is put forward. With the FLAC3D numerical software in the program, the simulation analysis shows that the program can effectively increase the roadway confining pressure to improve the state of the surrounding rock stress, reduce roadway displacement and deformation and thus keep the stability of the surrounding rock. The results show that Bolt and cable support can effectively control the surrounding rock, with the roadway convergence rate small, and the support system safe.

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251-254

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December 2013

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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