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水布垭面板堆石坝渗流场分析和分区材料允许比降设计指标研究
引用本文:张家发,杨启贵,熊泽斌,王金龙.水布垭面板堆石坝渗流场分析和分区材料允许比降设计指标研究[J].长江科学院院报,2008,25(6):71-76.
作者姓名:张家发  杨启贵  熊泽斌  王金龙
作者单位:1. 长江科学院,水利部岩土力学与工程重点实验室,武汉,430010
2. 长江勘测规划设计研究院,武汉,430010
基金项目:国家自然科学基金 , 国家重点基金研究发展规划(973计划)  
摘    要: 采用饱和非饱和非稳定渗流模型对水布垭面板堆石坝在正常运行、面板局部缺损和面板失效等工况下的渗流场进行了较全面的模拟计算,分析了大坝各分区的水头和比降的分布,确定了垫层、过渡区和主堆石区可能出现的最大比降。这种最大比降对坝体渗透稳定性具有控制意义。据此提出了分区材料允许比降设计指标的建议值,为评价面板堆石坝分区之间水力过渡合理性和渗透稳定性提供了依据。

关 键 词:水布垭面板堆石坝  大坝分区  渗流场  设计指标  渗透比降

Studies on Seepage Field in Shuibuya Concrete Faced Rockfill Dam and Design Standard for Acceptable Seepage Gradient of Rockfill Materials
ZHANG Jia-fa,YANG Qi-gui,XIONG Ze-bin,WANG Jin-long.Studies on Seepage Field in Shuibuya Concrete Faced Rockfill Dam and Design Standard for Acceptable Seepage Gradient of Rockfill Materials[J].Journal of Yangtze River Scientific Research Institute,2008,25(6):71-76.
Authors:ZHANG Jia-fa  YANG Qi-gui  XIONG Ze-bin  WANG Jin-long
Affiliation:ZHANG Jia-fa1,YANG Qigui2,XIONG Ze-bin2,WANG Jin-long1(1.Key Laboratory of Geotechnical Mechanics , Engineering of the Ministry of Water Resources,Yangtze River Scientific Research Institute,Wuhan 430010,China,2.Changjiang Institute of Survey,Planning,Design , Research,China)
Abstract:A transient saturate-unsaturated water flow model is adopted to simulate the seepage field in Shuibuya Concrete Faced Rockfill Dam under different conditions: concrete face functions normally,cracks locally or does not work totally.The distribution of water head and hydraulic gradient in different dam zone is analyzed.The max hydraulic gradient that might appear in the padding zone,transition zone and main rockfill zone is suggested separately, which would control the seepage stability status of the dam.Her...
Keywords:Shuibuya Concrete Faced Rockfill Dam  dam zone  seepage field  design parameter  seepage gradient  
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