论文部分内容阅读
本文采用一种特殊的岩体灌浆锚杆有限元数值模拟方法 ,并结合玛尔挡枢纽工程,对其地下厂房剖面进行了二维非线性有限元分析,主要研究了主厂房洞室开挖过程中及开挖完成后围岩的应力状态、位移值以及塑性区分布范围,重点分析了喷锚支护措施的加固效果在此基础上,对岩体质量进行综合定量评价,提出各高边坡岩体力学参数的综合指标。
In this paper, a special finite element numerical simulation method of grouting rock bolt is adopted in this paper. Combined with the Ma’er Bridges Project, the two-dimensional nonlinear finite element analysis of the underground workshop section is carried out. The main research works are as follows: After the completion of excavation and the surrounding rock stress state, the displacement value and the distribution of the plastic zone, focusing on the analysis of the reinforcement effect of shotcrete and anchor support measures on the basis of this, a comprehensive quantitative assessment of rock mass quality, put forward the high slope Comprehensive index of mechanical parameters of rock mass.