巷道围岩结构稳定性控制机理研究综述

    Study Review on Structural Stability Control Mechanism of Roadway Surrounding Rock

    • 摘要: 为了进行巷道围岩结构稳定性控制机理研究,从影响巷道围岩稳定性的巷道围岩结构承载机理、巷道围岩结构弱化机理、巷道围岩大变形及其控制机理3个方面介绍了目前国内外的相关研究成果,并对研究成果进行了总结分析。结果表明:目前,围岩结构承载模型局限于二维问题,围岩结构承载能力弱化研究局限于水化作用,围岩结构变形分析局限于结构体内本身的力学行为;从而提出从建立三向承载结构力学响应模型,量化围岩结构承载能力的多项弱化分析指标,建立含弱结构的煤层巷道数值分析模型,强化含弱结构承载能力4个方面来提高巷道围岩整体稳定性。

       

      Abstract: In order to study the structural stability control mechanism of roadway surrounding rock, from roadway surrounding rock structure load-bearing mechanism affecting the stability of roadway surrounding rock, structure weakening mechanism of roadway surrounding rock, the large deformation of roadway surrounding rock and its control mechanism three aspects, we introduce the related research results at home and abroad, and summarize the analysis of relevant research results. The results show that the structure of surrounding rock bearing model is confined to the two-dimensional problem, and bearing capacity weaken of surrounding rock confines to the hydration, rock structure deformation analysis is confined to the mechanical behavior of structure of the body itself at present. We propose four aspects to improve the overall stability of roadway surrounding rock including establishing mechanical response model with three-dimensional bearing structure, quantifying several weakening analysis indexes of bearing capacity of surrounding rock structure, establishing numerical analysis model of coal seam roadway with weak structure, strengthening the bearing capacity of weak structure.

       

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