摘要
采用考虑锚芯与灌浆体间剪切作用的三维锚杆单元 ,建立了地表锚杆预加固浅埋隧道的空间耦合数值分析计算模型 ,编制了空间弹塑性有限元 -无限元 -锚杆单元耦合程序 ,并通过与现场量测和室内模型试验研究成果的比较 ,表明计算模型具有较高的计算精度 。
A coupled spatial computational model of shallow tunnels pre reinforced with surface mortar bolts is developed by using three dimension bolt element in which the shear action between bolt and mortar is considered and a coupling program of spatial elastic plastic finite element,infinite element,and bolt element is made.Compared with the results of measuring in site and model tests the model has high computational precision.And this analysis method will also shed light on engineering design.
出处
《长沙铁道学院学报》
CSCD
北大核心
2001年第3期49-54,共6页
Journal of Changsha Railway University
