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碾压混凝土坝计算参数对变形的敏感性分析
引用本文:周兰庭,顾冲时,李波. 碾压混凝土坝计算参数对变形的敏感性分析[J]. 三峡大学学报(自然科学版), 2012, 34(5): 7-9
作者姓名:周兰庭  顾冲时  李波
作者单位:1. 河海大学 水利水电工程学院,南京 210098;河海大学 水资源高效利用与工程安全国家工程研究中心,南京 210098
2. 长江科学院,武汉,430010
基金项目:国家自然科学基金(51079046,50909041,50809025,50879024,51139001);国家科技支撑计划课题(2008BAB298032008BAB29806);中央高校基本科研业务费项目(2010801814)
摘    要:针对碾压混凝土坝本体及层面影响带计算参数对变形影响的问题,定义了敏感度函数,探讨了变形计算参数的敏感性分析方法;并运用敏感性分析原理对某碾压混凝土坝变形主要计算参数进行敏感性分析,分析结果表明:本体弹模对变形最敏感,层面弹模次之,然后是本体泊松比,层面泊松比最不敏感.分析结果对碾压混凝土坝的变形分析具有一定的参考价值.

关 键 词:碾压混凝土坝  计算参数  变形  敏感性

Sensitivity Analysis of RCC Dam Calculation Parameters to Dam Deformation
Zhou Lanting , Gu Chongshi , Li Bo. Sensitivity Analysis of RCC Dam Calculation Parameters to Dam Deformation[J]. Journal of China Three Gorges University(Natural Sciences), 2012, 34(5): 7-9
Authors:Zhou Lanting    Gu Chongshi    Li Bo
Affiliation:Zhou Lanting Gu Chongshi Li Bo (1. College of Water Conservancy & Hydropower Engineering, Hohai Univ., Nanjing 210098, China; 2. National Engineering Research Center of Water Resources Efficient Utilization & Engineering Safety, Hohai Univ. , Nanjing 210098, China ; 3. Yangtze River Scientific Research Institute,Wuhan 430010, China)
Abstract:This paper aims at the problem of the noumenon and interface calculation parameters in roller compacted concrete(RCC) dam deformation, defines the sensitive function, and studies the sensitivity analysis method of dam deformation calculation parameters and uses the theory of sensitivity analysis to perform the sensitivity analysis of the main calculation parameters in a certain RCC dam deformation. The result shows that sensitivity to deformation, the ontology elastic modulus is the most sensitive; the level elastic modulus is less sensitive, then is the noumenon Poisson ratio; and the interface Poisson ratio is the least sensitive. The analysis result has reference value for analysis of the RCC dam deformation.
Keywords:RCCD  calculation parameters  deformation  sensitivity
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