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CAI Feng. Failure Mechanism and Support Countermeasures of Deep Soft Rock Roadway[J]. Safety in Coal Mines, 2017, 48(10): 132-135.
Citation: CAI Feng. Failure Mechanism and Support Countermeasures of Deep Soft Rock Roadway[J]. Safety in Coal Mines, 2017, 48(10): 132-135.
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Failure Mechanism and Support Countermeasures of Deep Soft Rock Roadway

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  • Published Date: October 19, 2017
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  • According to the features of roadway at three-level in Hebi No. 5 Coal Mine, the deformation failure mechanism and its support countermeasures are investigated. The results show that the main reasons of deformation failures in deep roadways are high self-weight stress, high degree of environmental ground stress, weakening surrounding rock and irrational design. In responding to the identified problems, a countermeasure of bolt-mesh-anchor-shotcrete +floor bolting + truss coupling supporting is proposed. Using bolt-mesh-anchor-shotcrete support to block unwanted deformation and using floor bolting to transfer floor heave plastic slippage force and using truss with reserved deformation to ensure the overall stability, integrative control and even load have been realized, the aim of stability control has been achieved. The results of simulation and field test show that this support technology could effectively control the deformation of roadway in deep mine and it’s a useful support type for soft rock roadway in deep mine.
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    • References (12)
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