深部软岩巷道变形特性及其控制支护技术研究

Deformation Characteristics of Soft Rock Roadway in Deep Mines and Supporting Control Technology

围绕深部复杂软岩巷道稳定性控制研究中存在的主要问题,在软岩巷道的变形破坏特征、围岩的变形破坏机理以及深部软岩巷道的稳定性控制等方面进行了系统而全面的研究。基于对深部复杂软岩巷道变形破坏特征与围岩变形破坏机理的研究成果,分别采用"三锚"联合支护技术、"长短锚"联合支护技术以及抗让结合的支护理念,研究确定了深部复杂软岩巷道稳定性控制的合理支护方案。监测数据和分析结果表明,所确定的软岩巷道的稳定性控制方案是合理、有效的,可以保证深部复杂软岩巷道的长期稳定性。

This paper presented a systematic and comprehensive study on the main problems about the characteristics of deformation and failure of soft rock roadways,the mechanisms of deformation and failure of surrounding rocks and,the stability control of soft rock roadways in deep mine,etc.Some reasonable supporting plans were designed based on the achievement mentioned before by employing the supporting notion,i.e.respectively adopting the ＂three bolts＂ combination supporting technique,＂long-short bolts＂ combination supporting technique and the technique by combining the resisting with yielding.The analysis results of monitoring data showed that the plan for controlling the stability of soft rock roadways was reasonable and effective and good enough to ensure the long-term stability of complicated soft rock roadways in deep mines.