【摘要】 本文采用离散元分析技术-颗粒流(软件PFC2d)来建立能够合理描述锚板上拔过程的颗粒流模型。通过详细考察颗粒刚度、模型粒径比、颗粒摩擦系数、模型孔隙率等细观参数对荷载-位移曲线以及锚板抗拔承载力的影响,将数值模拟结果与试验结果进行对比分析,验证了该数值方法的合理性与可行性。通过数值方法的建立分析预测条形锚板承载力,对优化锚固基础结构形式、提高系泊系统稳定性具有重要的工程意义。更多还原

【Abstract】 A discrete element analysis technique(software PFC2 d) is used to build a particle flow code model that shows a reasonable uplift process of anchor plates. By quantifying the impact of such microscopic parameters as particle stiffness, particle size ratio, particle friction coefficient and model’s porosity on the load-displacement curve and uplift bearing capacity of anchor plates, the numerical simulation results are compared with the experimental results, and the analysis results verify the feasibility and rationality of the numerical method. The bearing capacity of strip anchor plates can be analyzed and predicted by using the above method, which will plays an important role in optimizing the structure of anchoring foundation and stabilizing the mooring system.更多还原