采矿与安全工程学报Issue(1)：28-33,6.
深部穿层巷道非对称变形机理及控制对策研究
Study on the asymmetric deformation mechanism and control countermeasures of deep layers roadway
摘要
Abstract
The paper presents the research results based on failure mechanism and control counter-measures by numerical analysis and engineering tests. It shows that with the increase of buried depth, ground stress, and especially the influence of the horizontal tectonic stress, the surrounding rock of tun-nels performs large asymmetric deformation under the original supporting conditions, and the key parts of failure are at the cross section of roadway layer and rock tendency layer;dislocation deformations such as shearing slip deformation between different layers and extrusion deformation of soft rocks by the influence of asymmetry structure of surrounding rocks will also occur. Combined with field engi-neering geological conditions, the asymmetric coupling support countermeasures by using bolt-mesh-anchor and anchor in corner to strengthen key parts supports are put forward, which shows good effect in field applications on asymmetric deformation and dislocation deformation controlling, and surround-ing rock stabilities are improved.关键词
深部穿层巷道/非对称变形/数值模拟/破坏机理/控制对策Key words
deep layers tunnel/asymmetric deformation/numerical modeling/failure mechanism/control countermeasure分类
矿业与冶金引用本文复制引用
王炯,郭志飚,蔡峰,郝育喜,刘鑫..深部穿层巷道非对称变形机理及控制对策研究[J].采矿与安全工程学报,2014,(1):28-33,6.基金项目
国家自然科学基金项目(41172263，51734214) （41172263，51734214）
