【作者】 徐恩虎；

【Author】 Xu Enhu (Shandong University of Science and Technology,Tai’an 271019 China)

【机构】 山东科技大学资源与环境工程学院；

【摘要】 将圆形巷道锚杆加固区定义为一定假设基础上的环观各向同性区,由细观力学分析方法得到其等效各向异性力学参数,并导出了与之相适应的Mohr-Coulomb准则。结果表明,与以往的简化力模型相比,该方法能更好地体现出锚杆支护的良好结果,巷道围岩变形对支护参数的敏感性明显提高。更多还原

【Abstract】 The bolted zone of a circular roadway is defined as a cylindrical isotropic zone which is based on appropriate hypothesis.By using of the meso-mechanical analysis method,its equivalent anisotropic mechanical parameters have been gained,and Mohr-Coulomb rule adapted with it has been obtained.The results show that this method can incarnate better the good effect of the bolting,compared with the simplified force model,and the sensitivity of the roadway deformation with bolting parameters increases distinctly.更多还原