摘要
基于邓肯E-B模型对扎毛水库混凝土面板堆石坝进行了结构非线性有限元分析,给出了坝体和面板在竣工期、蓄水期的应力变形及分布规律。计算结果表明:坝体的总体变形较小,最大沉降量为44.67cm,约为坝高的0.6%;面板最大拉应力和压应力分别为1.53MPa和2.32MPa,均未超过混凝土的极限抗拉-抗压值;面板的最大挠度为12.4cm,周边缝的变形也不大,均在已建工程实测值范围内。
With the finite element simulation based on Duncan-Zhang E -B model, an analysis is made of the stress and strain of Zhamao rock-fill dams with concrete face slab during construction and impoundment periods. The calculation results show that .. the overall deformation of the dam is relatively small, the maximum dam settlements are 44. 67cm, which accounts for 0. 6% of the height of the dam, the maximum tensile stresses and compressive stresses are 2.57 MPa and 1.86MPa, which do not exceed the limit of the concrete tensile-compressive value. The maximum deflection is 12. 4 cm, the deformation of surrounding seam in the normal range. The distribution of stress and deformation is similar with the prototype observations of other projects under construction.
出处
《中国农村水利水电》
北大核心
2012年第9期128-131,共4页
China Rural Water and Hydropower
关键词
混凝土面板堆石坝
结构非线性
应力变形
concrete faced rock-fill dam
structural nonlinear
stress and deformation
