清水矿南二05运输巷软岩特性试验研究

Experimental Study on South Two 05 TransportCrossheading Soft Rock of Qingshui Mine

针对清水矿南二05运输巷道变形严重、围岩特性及破坏机理缺乏系统进行全面研究,综合采用物理力学实验、围岩吸水特性测试、电子显微镜扫描和X射线衍射等手段,对该区域内围岩特性开展了试验研究。结果表明,清水矿南二05运输巷道围岩为典型的膨胀性-节理化复合型软岩,具有复合型变形力学机制,为巷道支护方案设计提供了重要的基础数据。

As to the deformation of the transport crossheading roadway becomes serious on the Qingshui mine south two 05 and there is a lack of comprehensive and systematic research on suxrounding rock deformation characteristics and failure mechanism ,the authors use physical mechanics experiment, water absorption characteristics of surrounding rock test, scanning electron microscope, X ray diffraction and other methods to have test and study on surrounding rock characteristics. The results shows that the surrounding rock of the transport erossheading roadway on the Qingshui mine south two 05 is expansion -jointed compound soft rock, and the surrounding rock has com- pound mechanical mechanism of deformation, and it can provides important basic datum for the design of tunnel.