深井软岩巷道峰后特性支护技术研究

随着开采深度增加，巷道围岩趋于体现软岩的特征，因此深井软岩巷道支护的研究对指导现场施工具有重要意义。在现场实测的基础上，采用数据分析和理论依据相结合，对深井软岩巷道支护技术进行研究，结果表明，对于软岩巷道支护要充分发挥其软的特征，允许围岩进入塑性状态，发挥围岩自身的承载能力。在实测的基础上选择最佳二次支护时间，控制其二次变形量，在实践中取得了显著的经济效果。

Research on Supporting Technology of Deep Soft Rock Roadway Based on the Characters of Surrounding Rock after Peak Stress

The surrounding rock of roadway tends to behave the characters of soft rock with the increase of mining depth,so the research on support technology of deep soft rock roadway is very important for locale construction.Based on the in-situ measure,this paper adopts researches the support technology of roadway in deep soft rock using data analysis method and combining with the theoretical basis.The researched result shows that for the support of soft rock roadway the soft character of rock should be made use of and the surrounding rock should be allowed become plastic so as to exert the self's load bearing capability of surrounding rock.In the practice,through choosing the best time of second supporting and controlling the second deformation of surrounding rock based on the actual measure,the good economy effect has been obtained.