【作者】 徐颖； 许兰保；

【Author】 XU Ying,XU Lan - bao (School of Civil Engineering and Architecture,Anhui University of Science and Technology,Huainan,Anhui 232001,China)

【机构】 安徽理工大学土木建筑学院；

【摘要】 针对深部软岩巷道围岩的非对称变形破坏,结合典型工程实例,提出了非对称耦合支护对策,利用FLAC3D软件构建工程地质模型,分析非对称耦合支护效果。实际工程应用和监测结果表明,增加锚杆、锚注及锚杆长度等对变形破坏的关键部位进行非对称耦合支护,充分发挥围岩和支护体的支护能力,使围岩和支护结构相互耦合,消除了巷道围岩关键部位产生的差异性变形,降低了支护成本,验证了此非对称耦合支护对策的可行性。更多还原

【Abstract】 The asymmetric deformation damage of surrounding rock in deep soft rock roadway,combined with typical engineering examples,put forwards the asymmetric coupling support countermeasures,establishing engineering geological model by software of FLAC3D,analyzes effect of symmetric coupled supporting.The practical application and monitoring results show that,asymmetric coupling support for the key parts of deformation and failure by anchor, bolt -grouting,and length of anchor and so on,give support ability of surrounding rock and supporting full play,and make surrounding rock and supporting structure mutual coupling,eliminate the difference deformation of key parts in surrounding rock,and reducing the cost of supporting,verified the feasibility of symmetric coupled supporting measures.更多还原