基于无网格方法的边坡支挡结构变形特征研究  

Research on Deformation Characteristics of Slope Retaining Structure Based on Meshless Method

作　　者：徐晓东[1] XU Xiaodong(Barun Mining Branch of Inner Mougolia Baotou Steel Union Co.,Ltd.)

机构地区：[1]内蒙古包钢钢联股份有限公司巴润矿业分公司,内蒙古包头市014080

出　　处：《现代矿业》2023年第11期236-240,244,共6页Modern Mining

摘　　要：为了准确描述边坡变形特征,研究失稳后支护结构的冲击效应,采用光滑流体粒子动力方法,建立HPB本构关系的边坡失稳运动过程及支护结构冲击效应的数值模型,研究边坡失稳演化全过程及其变形体与支护结构的相互作用。为验证提出方法的合理性,模拟了经典的Poiseuille流问题,同时对比分析了Bingham模型的流体运动问题,发现其能准确地反映流体运动速度场时空分布及堆积形态,表明HBP本构模型可以有效地表征边坡流变特征及动力过程。光滑粒子流体动力学在边坡变形分析、支护结构设计、边坡失稳预测及防治方面具有实践意义。In order to accurately describe the deformation characteristics of the slope and study the impact effect of the supporting structure after the instability,the smooth fluid particle dynamic method is used to establish the numerical model of the slope instability movement process and the impact effect of the supporting structure of the HPB constitutive relationship,and to study the whole process of slope instability evolution and the interaction between the deformation body and the supporting structure.In order to verify the rationality of the proposed method,the classical Poiseuille flow problem is simulated,and the fluid movement problem of Bingham model is analyzed comparatively,which accurately reflects the temporal and spatial distribution of the fluid movement velocity field and the accumulation form,indicating that the HBP constitutive model can effectively represent the slope flow characteristics and dynamic process.The proposed smooth particle hydrodynamics has practical significance in slope deformation analysis,support structure design,slope instability prediction and prevention.

关 键 词：边坡 光滑粒子流体动力学 HPB模型 数值模拟 

分 类 号：TD854.6[矿业工程—金属矿开采]