CAJ | 학술논문

基于Duncan－Chang E－B材料本构模型，采用大型通用有限元分析软件ABAQUS，针对坝体在实际运行中分期蓄水和湿化作用的影响，对某沥青混凝土心墙堆石坝进行非线性有限元分析。在一次性蓄水、考虑湿化的一次性蓄水和分期蓄水时沥青混凝土心墙堆石坝应力应变特性的基础上，分别对坝体和心墙的水平位移、竖直沉降、大小主应力进行比较。结果表明：分期蓄水对坝体和心墙的应力变形影响较小；湿化作用对坝体和心墙的应力变形影响较大，在计算中应考虑其影响。
기우Duncan－Chang E－B재료본구모형，채용대형통용유한원분석연건ABAQUS，침대패체재실제운행중분기축수화습화작용적영향，대모력청혼응토심장퇴석패진행비선성유한원분석。재일차성축수、고필습화적일차성축수화분기축수시력청혼응토심장퇴석패응력응변특성적기출상，분별대패체화심장적수평위이、수직침강、대소주응력진행비교。결과표명：분기축수대패체화심장적응력변형영향교소；습화작용대패체화심장적응력변형영향교대，재계산중응고필기영향。
Based on Duncan-Chang E-B material model and aimed at the effect of staging impoundment and wetting deformation in practical application ,the paper analyzed an rock-fill dam with asphalt concrete core by the finite element software ABAQUS .It contrasted horizontal displacement ,vertical settlement and the size of principal stress of dam body with core respectively based on dam ,s strain stress characteristic under the one-time impoundment ,considering the humidification one-time impoundment and by-stage im-poundment .The results show that staging impoundment has little effect on the stress and deformation of dam body and core ,but humidification has large influence on the deformation and stress of dam body and core so its effect should be considered in calculation .