铁道科学与工程学报2018，Vol.15Issue(3)：597-604,8.
全长黏结式注浆锚杆侧摩阻力分布实用简便计算
Practical and convenient calculation of frictional resistance distribution of full-length bonded grouting
摘要
Abstract
A simplified method for calculating the frictional resistance of the grouting bolt at full length is proposed. The bolts at work are segmented and analyzed to calculate the even distribution of the lateral friction of the assumed segmented anchor. According to the relationship between the stress and deformation of the bolt body, the grouting body and the rock and soil body, the expression of the double order series of the friction resistance distribution of the bolt side is deduced, the results show that the distribution of the resistance at the side of the bolt is approximately two-order series from the bottom to the end, which is more than 85% of the tensile load by 40% of the length of the end. The results of this method are in good agreement with the results of literature, and the feasibility and accuracy are verified. On this basis, the influence of the number of bolts, the diameter of bolt, the elastic modulus of anchor and the shear stiffness of soil are analyzed. The method is simple and practical, and it is feasible and practical to analyze the frictional resistance of grouting bolt. It provides a new method for multi-type bolt engineering calculation.关键词
全长黏结式注浆锚杆/摩阻力分布/2重级数表达式/实用简便计算Key words
full-length grouting anchor bolt/friction distribution/two-level series expression/practical and simple calculation分类
建筑与水利引用本文复制引用
熊辉,皮乐..全长黏结式注浆锚杆侧摩阻力分布实用简便计算[J].铁道科学与工程学报,2018,15(3):597-604,8.基金项目
教育部新世纪优秀人才支持计划资助项目(NCET-13-190) （NCET-13-190）
湖南省科技计划资助项目(2013FJ4214) （2013FJ4214）
