摘要
应用有限元分析手段,采用地层结构法和工程类比法的方法,参照某隧道工程实例,研究了不同初始地应力对隧道衬砌受力的影响,指出在高地应力地区,应用地层结构法加载初始地应力可以较为准确地模拟在相同地应力条件下衬砌的受力情况。
The paper carries out finite element simulation by applying beam unit and three-dimension entity unit, carries out the construction process of continuous fish-ridge beam of Dazhi river bridge, analyzes and compares the calculation results. Results show that ： shearing deformation impact should not be neglected when calculation with beam unit model; the calcuiation results accuracy can meet demands when the grid size of three-dimensional entity unit is 0.5 m.
出处
《山西建筑》
2014年第11期173-174,共2页
Shanxi Architecture
关键词
有限元
地层结构法
初始地应力
衬砌
模拟
continuous fish-ridge beam, finite element analysis, displacement, stress
