The Study of Numerical Simulation about Roadway Bolting and Reinforcement to Jointed Rock Mass

Zhi Qiang Kang; Shu Hui Yan; Qiu Yan

doi:10.4028/www.scientific.net/AMR.577.159

Paper Titles

Development and Research on Multi-Functional Sucker-Rod Pump Lifting Simulation Experiment System in Oil Mining Engineering
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Investigation of High Pressure Water Jet with Hydraulic Reaming Drainage Radius for Coal Seam Mining
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A Review on Reagents and Processes of Fine-Grained Cassiterite Flotation in Mining Engineering
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Study on the Technique to Control Heat-Damage in Mine
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The Study of Numerical Simulation about Roadway Bolting and Reinforcement to Jointed Rock Mass
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Effect of Pore Pressure Variation on Borehole Stability of Drilling in Sandstone Reservoir
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The Effect of Technological Parameter on the Co-liquefaction of Coal with Lignin
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A Study for Piping Phenomenon of the Different Graded Sands on Slope in Mining Engineering of Civil Construction
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Numerical Analysis of the Recovery Rate Influence with Stowing Roadway Mining in Daizhuang Shengjian Coal Mine
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The Study of Numerical Simulation about Roadway Bolting and Reinforcement to Jointed Rock Mass

Abstract:

Through the mechanical derivation on bolt grouting reinforcement shearing resistance strength of the joint surface, shows that bolt grouting reinforcement focus strengths on the anchor bolt and grouting, and it enhances and elaborates self-supporting ability of rock. Combined with the numerical simulation analysis using the Flac3D software during the jointing soft rock roadway with no supports and protections and bolt grouting reinforcement, we can see that bolt grouting reinforcement has a significant role on improving jointing soft rock roadway force status and limiting roadway rock deformation. Therefore bolt grouting reinforcement is a worthy technology to popularize.