Research on discrete element simulation of anchor frame beam reinforcement in bedding shale slope

[摘要] The anchor frame beam is a new type of composite support method, which is a kind of slope protection structure considering the interaction between the anchors and the slope. Based on the reinforcement project of a bedding shale slope in Chengzhang highway, the reinforced effect of anchor frame beam is studied by discrete element method. Firstly, the mesoscopic parameters of the rock mass are obtained by calibration while that of anchor frame beam are obtained by calculation. Then the slope model with the reinforcement of anchor frame beam is established by particle flow software PFC2D. Afterwards, the statement of slope can be analyzed and the reinforcement effect of anchor frame beam can be predicted. Results show that: there is no instability in the slope after reinforcement, and the sliding of slope can be effectively prevented by anchor frame beam. The simulation results can provide reference for the design and construction of the project.

[发布机构] College of Geology and Environment, Xi'An University of Science and Technology, Xi'an, Shaanxi; 710061, China^1

[效力级别] 生态环境科学

[关键词] Anchor frame beam;Composite support;Design and construction;Discrete element simulation;Mesoscopic parameter;Particle flow;Protection structure;Reinforcement effects