摘要
将摩擦桩荷载传递模型应用于锚杆受力分析,通过理论推导获得弹性状态下锚杆受拉时围岩的弹性变形解析解,并分别讨论了有效锚固长度、扰动围岩表面半径与锚杆所受拉力的关系。通过解析解与数值解的对比分析,说明该荷载传递模型用于锚杆受力分析是可行的,基于该模型的分析结论对于锚杆设计具有一定的应用价值。
Through theoretical analysis on the mechanical properties of bolts based on the pile-soil load transfer model, a analytic solution of elastic deformation on surrounding rock while bolts under tensile load is obtained. Then, the relationship between valid anchorage length and disturbed-radius of surrounding rock and tensile force of bolts are discussed. In addition, according to the comparison of analytic solution and nurnerieal calculation, it is concluded that analytic analysis on mechanical properties of bolts based on pile-soil load transfer model is feasible, and the analysis results can be applied to the bolts design.
出处
《工程建设与设计》
2010年第9期102-105,共4页
Construction & Design for Engineering
关键词
荷载传递
扰动围岩半径
有效锚固长度
load transfer
disturbed-radius of surrounding rock
valid anchorage length
