摘要
预应力锚杆支护技术广泛应用于边坡工程,但预应力锚杆的作用机理还缺乏系统深入的研究。通过利用ANSYS提供的非线性弹塑性模型,结合一边坡锚喷支护工程实例,采用基于摩尔-库伦等面积屈服准则的强度理论,对边坡支护前后的稳定性进行分析,对锚固件和边坡岩土体的相互作用进行数值模拟,得出一些有益的结论,对边坡锚喷支护工程优化设计具有一定的指导意义。
Although pre-stress anchor bolt is widely used in slope engineering, the mechanism of anchor bolt is not studied thoroughly and systematically. By using the nonlinear plasticity Druker-Prager moder offered by ANSYS, combining a slope engineering case of anchor-plate retaining, with the strength theroy based on Mohr-Column eqivalent area circle yield criterion, some problems are discussed, including slope stability fore and after retaining interactive mechanism between anchor bolt and rock-soil mass. Finally, some profitable conclusions are presented, which would serve as guide to improve the design of slope anchor-plate retaining engineering.
出处
《地质灾害与环境保护》
2009年第2期79-85,共7页
Journal of Geological Hazards and Environment Preservation
关键词
锚喷支护
数值模拟
机理
稳定性
anchor-plate retaining
numerical simulation
mechanism
stability
