CAJ | 학술논문

应用ANSYS有限元计算软件对寒区路基涵洞进行了模拟计算，采用不同的工况模拟寒区路基涵洞的冻胀影响，对涵洞-冻土整体数值分析模型进行了非线性有限元分析。对路基涵洞在不同冻胀率、有无垫层、不同垫层厚度下的位移及拉应力关系进行分析。揭示可能导致路基涵洞结构发生破坏的主要因素如冻胀率及冻胀深度等的设计限制值，给出了路基涵洞结构在不同冻胀变形下垫层厚度的安全限制值。
응용ANSYS유한원계산연건대한구로기함동진행료모의계산，채용불동적공황모의한구로기함동적동창영향，대함동-동토정체수치분석모형진행료비선성유한원분석。대로기함동재불동동창솔、유무점층、불동점층후도하적위이급랍응력관계진행분석。게시가능도치로기함동결구발생파배적주요인소여동창솔급동창심도등적설계한제치，급출료로기함동결구재불동동창변형하점층후도적안전한제치。
With ANSYS finite element analysis software, simulation is carried out against subgrade culvert in cold region to the extent that the frost-heaving effect on such culverts in different cases is simulated and nonlinear finite element analysis is conducted against the integrated culvert-frozen soil numerical analysis model; and then the relationship between displacement and tensile stress of the subgrade culvert under different frost-heaving rates, cushion or no cushion, or different thickness values of the cushion is analyzed. Thus, the design limits of the main factors, which may cause structural damage on the subgrade culvert, such as rate and depth of frost-heaving, are disclosed; and the safety limits of the cushion thickness for the subgrade culvert structure under different rates of frost-heaving.