摘要
在作者已提出的初始温度均匀堤坝中形成单个渗漏通道的温度场解析解的基础上,运用叠加原理建立了多个渗漏通道的温度场解析式,随后通过六参数Bursa-Wolf模型进行坐标变换,运用反分析建立出基于温度场探测多个集中渗漏通道的模型。将该模型用于分析陡河水库的渗漏问题。分析中将模型简化,建立圆柱状多个渗漏通道温度探测平面模型,先进行单个集中渗漏通道数据拟合,再计算各测点相对于该拟合曲线的残差,对残差作三次样条插值曲线,从而直观地判断集中渗漏通道的数量。计算结果表明,该工程存在3个明显的温度波谷。最后用优化方法计算出左坝肩的3个渗漏通道的确切位置,与实地调查结果一致,较同位素等综合方法定性分析更为精确。
On the basis of the analytic solution of temperature field analysis for detecting a single seepage passage suggested by the authors,a new analytic solution for multiple seepage passages is established by means of superposition principle.The Bursa-Wolf model is used to implement the coordination transformation and the model applying the reverse analysis for detecting multiple concentrated seepage pessages is established.The model is applied to analyze the seepage problem occurred to the earth dam of Douhe Re...
出处
《水利学报》
EI
CSCD
北大核心
2009年第4期486-491,共6页
Journal of Hydraulic Engineering
基金
华北水利水电学院高层次人才启动项目(200716)
关键词
温度场探测
集中渗漏
计算模型
反分析
陡河水库
temperature detection
concentrated seepage passage
calculation model
reverse analysis
abutment of earth dam
