CAJ | 학술논문

　　邓肯-张E-B模型能反映堆石料不同围压下的应力变形关系，在混凝土面板堆石坝应力变形数值计算中得到了广泛的应用。本文基于正交试验法，以混凝土面板堆石坝为例，进行了邓肯-张E-B模型参数对坝体竖向位移、上下游水平位移的敏感性分析。研究结果表明：邓肯-张E-B模型参数中的初始体积模量基数、初始内摩擦角、初始弹性模量基数对坝体竖向位移的敏感性相对较大；初始内摩擦角、初始弹性模量基数、破坏比对坝体向上游水平位移的敏感性相对较大；初始体积模量基数、初始内摩擦角、初始弹性模量基数对坝体向下游水平位移的敏感性相对较大；模型参数取值对向上游水平位移的影响最为显著；体积模量指数、摩擦角中的减少值、弹性模量指数对坝体变形计算结果的影响相对较小。本文的研究方法及成果可以为面板堆石坝邓肯-张E-B模型参数选取提供参考。
　　산긍-장E-B모형능반영퇴석료불동위압하적응력변형관계，재혼응토면판퇴석패응력변형수치계산중득도료엄범적응용。본문기우정교시험법，이혼응토면판퇴석패위례，진행료산긍-장E-B모형삼수대패체수향위이、상하유수평위이적민감성분석。연구결과표명：산긍-장E-B모형삼수중적초시체적모량기수、초시내마찰각、초시탄성모량기수대패체수향위이적민감성상대교대；초시내마찰각、초시탄성모량기수、파배비대패체향상유수평위이적민감성상대교대；초시체적모량기수、초시내마찰각、초시탄성모량기수대패체향하유수평위이적민감성상대교대；모형삼수취치대향상유수평위이적영향최위현저；체적모량지수、마찰각중적감소치、탄성모량지수대패체변형계산결과적영향상대교소。본문적연구방법급성과가이위면판퇴석패산긍-장E-B모형삼수선취제공삼고。
Duncan-Chang E-B model can reflect the relationship of stress and deformation of rockfill materi-als under different confining pressures, therefore it has been widely applied in the numerical calculation of stress and deformation of the concrete faced rockfill dam. Based on the orthogonal test method, the con-crete faced rockfill dam is taken as examples in this paper to conduct the sensitivity analysis of Dun-can-Chang E-B model parameters, and study the sensitivity of various parameters to the vertical settlement displacement of the dam and the horizontal displacement of upstream and downstream. The results of the study show that among the Duncan-Chang E-B model parameters,the sensitivity of Kb,φ0 and K are rela-tively large on the vertical displacement of the dam;φ0, K and Rf have a relatively appreciable influence on the horizontal displacement of upstream;Kb,φ0 and K have a relatively great influence on the horizon-tal displacement of downstream;the value of model parameters have the most significant effect on the hori-zontal displacement of upstream;the sensitivity of m,Δφ and n have a relatively small influence on the re-sults of dam deformation. The research methods and results of this paper can provide a reference for select-ing the Duncan-Chang E-B model parameters of concrete faced rockfill dam.