开展煤矿高应力软岩巷道支护技术研究具有重要的理论意义和工程实用价值。本文以魏家地煤矿二号石门巷道返修工程为依托，采用理论分析、现场监测和FLAC-3D模拟相结合的方法，对高应力软岩巷道的围岩变形规律及其返修技术进行了研究。主要内容与结论有： （1）研究了高应力软岩巷道的变形破坏机理，分析了影响高应力软岩巷道稳定的主要因素。影响高应力软岩巷道稳定的主要因素有：巷道围岩的性质、巷道位置、埋深、地下水的作用、巷道的断面尺寸、掘进破岩方法、暴露时间、采动影响、构造应力影响以及支护方式等。高应力软岩巷道围岩变形具有流变性、大变形、难控制的特点。 （2）采用钻孔内窥仪完成了围岩松动圈范围测试研究，分析了二号石门巷道破坏的主要原因。完成了高应力软岩返修巷道的支护设计，确定采用锚杆（索）、锚注联合支护方案作为二号石门半煤岩巷道段的返修方案，给出了支护参数。 （3）设计了二号石门巷道的返修施工监测方案，采用信息化技术进行施工，进行了巷道变形、锚杆（索）受力规律监测研究。结果表明：高地应力软岩巷道的变形主要以两帮收敛和底鼓为主。锚索对控制巷道深部围岩变形有重要作用。注浆可以将松散围岩胶结成一个整体，使得锚杆和锚索成为全长锚固，可有效地控制围岩变形。 （4）采用FLAC-3D软件进行了全煤巷道段开挖施工过程三维仿真计算，分析了巷道围岩支护前后的变形演化规律，研究了巷道变形与巷道掘进工作面距离之间的关系，讨论了二号石门巷道施工对邻近巷道稳定性的影响规律，建议了二号石门巷道合理的施工措施。

Research support technology of soft rock roadway with the high geo-stress of mine has important theoretical and practical engineering value. This article is based on roadway repair project of Wei Jia di coal mine, use the manner of combine assume study deformation of the surrounding rock of soft rock roadway with the high geo-stress and repairing technology by theoretical analysis, in-situ monitoring and FLAC-3D simulation method. The main contents and conclusions are as follows: (1) Studied the deformation failure mechanism for soft rock roadway with the high geo-stress,the main impact factor of stability for soft rock roadway with the high geo-stress is analysised.are the nature of surrounding rock, location and depth of roadway, the role of groundwater, roadway cross-section size, methods of explosion, exposure time, the impact of mining, the impact of tectonic stress, support the type of care and so on.The impact of stability of soft rock roadway with the high geo-stress main factors: the nature of surrounding rock, location and depth of roadway, the role of groundwater, roadway cross-section size, methods of explosion, exposure time, the impact of mining, the impact of tectonic stress, support the type of care and so on.Deformation of soft rock roadway with the high geo-stress with rock rheology, large deformation, unmanageable. (2) Research surrounding rock loose circle range tests the by drilling within endoscope. analysis of the destruction main reason for the second rock cross-cut roadway. Completed the repair support design of soft rock roadway with the high geo-stress to determine the anchor bolts (cable), bolt-grouting combine support program as the second rock cross-cut semi coal and rock roadway rework the program, given the support parameters. (3) Design construction monitoring programs of roadway rework .the use of information technology construction for the roadway deformation, the law of anchor bolts (cable) force in-situ monitoring. The results showed that: deformation of soft rock roadway with the high geo-stress mainly between two groups of convergence and at the end of the main drum. Anchor cable to control the deep tunnel plays an important role in rock deformation. Grouting can be loosely cemented rock into a whole, making a total length anchor of anchor blots and anchor cable has become, to be effective in controlling the deformation of surrounding rock. (4) FLAC-3D software used for the tunnel excavation of three-dimensional simulation of the construction process for full coal, an analysis of surrounding rock deformation before and after support evolution to study the deformation of the roadway and the roadway heading face away from the relationship between the discussion of the second rock cross-cut roadway roadway construction on the stability of neighboring law proposed roadway on the the second rock cross-cut reasonable construction measures.