摘要
在引进拱坝应力重分析单位变形模量法的基础上,建立了拱坝地基处理的基础变形模量优化的多目标线性规划模型。该模型以不同高程地基变形模量E为设计变量,在人为可以改变地基变形模量的范围内,利用多目标线性规划的方法寻求对坝体应力、稳定及变形最优、相对基础处理费用又较低的地基变形模量。利用上述模型对我国某高拱坝的地基变形模量进行了优化,计算结果表明该数学模型合理,优化效果明显,优化的结果对工程地基处理有较现实的技术支持和指导意义。
This paper establishes an optimization model of multi-objective linear programming for the foundation deformation modulus of arch dam on the basis of introducing the unit deformation modulus method to calculate the stresses of arch dam.In the optimization model,the deformation modulus E,which varies with different elevation for arch dam foundation,is chosen as design variable,and the optimal deformation modulus,which is beneficial for the stresses,the stability and deformation of the dam with the minimum foundation treatment cost,is searched by using multi-objective linear programming method.The model is used to optimize the deformation modulus of a high arch dam in China.The calculated results indicate that the mathematic model is reasonable and effective for optimization,and can provide practical technique support to designers for foundation treatment.
作者
彭辉
刘德富
PENG Hui;LIU De-fu(College of Civil&Hydroelectric Engineering of the Three Gorges University,Yichang City 443002,China;College of Water Resources and Hydropower Engineering of Wuhan University,Wuhan City 430072)
出处
《中国农村水利水电》
北大核心
2005年第6期43-46,57,共5页
China Rural Water and Hydropower
关键词
高拱坝
变形模量
优化
地基处理
多目标
high arch dams
deformation modulus
optimization
foundation treatment
multi-objective
