Floor Heave Controlling Technology of Deep Soft Rock Roadway

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Abstract:

The floor heave is one of soft rock roadway distortion. Based on soft rock supporting theory and engineering practice, the program bolt-mesh-anchors and floor corner, bolts coupling support to control floor heave of the soft rock roadway is proposed. Numerical simulation results show that bolt-anchors can mobilize the strength of the deep adjacent rock, at the same time, and properly arranged floor corner bolts with high bending rigidity can cut the slip-line field and achieve the goal of controlling floor heave effectively.

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68-71

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May 2012

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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