摘要
分析寒区隧道变形破坏的外力根源。将软岩视为空间弹性体,提出了岩体在冻结过程中的温度场、应力场两场耦合的一般模型,用有限元ANSYS模拟了在温度荷载作用下隧道围岩冻胀力的分布,模拟显示和大坂山隧道实测数据一致。
The paper shows the outside force root of damage and destroY in permafrost tunnel.Regarding the rock as space elasticitY mass,we set up the thermal-stress coupling models,with the application of FEM software ANSYS,simulating the coupled simulation of temperature-stress field.The result is accorded with the practice.
出处
《咸阳师范学院学报》
2009年第4期23-26,共4页
Journal of Xianyang Normal University
关键词
岩体
热力耦合
数值模拟
rock
thermal-stress coupled
numerical simulation
