【摘要】 针对柔性注压锚杆解析及实验比较困难,采用有限元方法,模拟研究其锚固段阻抗摩擦应力的分布规律。数值模拟显示:沿锚杆环向呈近似正弦或余弦函数的循环分布形态;沿锚杆轴向应力分布可划分成波浪段、平台段以及突降段3个阶段。柔性注压锚杆锚固段最大阻抗摩擦应力沿轴向分布近似是均匀的,可实现真正的全长锚固。更多还原

【Abstract】 On account of analytic method and test method are difficult,we use the finite element method on flexible inner pressure bolt to study the distribution pattern of impedance frictional stress of the anchor.Numerical simulations display the link to the approximate sine or the cosine function circulation distributed shape,and axial stress distribution can be divided into wave section,platform section and dump section.The maximum impedance frictional stress of axial distribution of the anchor section is uniform approximately,and full length anchoring can be true.更多还原