| 三峡水库蓄水初期近坝区淤积形态成因初步分析 |
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| 引用本文： | 假冬冬,邵学军,张幸农,周建银.三峡水库蓄水初期近坝区淤积形态成因初步分析[J].水科学进展,2011,22(4):539-545. |
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| 作者姓名： | 假冬冬 邵学军 张幸农 周建银 |
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| 作者单位： | 1.南京水利科学研究院水文水资源与水利工程科学国家重点实验室 江苏南京 210029; |
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| 基金项目： | 水沙科学与水利水电工程国家重点实验室开放基金资助课题(sklhe-2011-B-02); 国家自然科学基金资助项目(50879042;50779038)~~ |
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| 摘 要： | 三峡水库蓄水运用后,库区泥沙淤积将显著增加.基于三维水沙数值模型及实测资料分析,对水库蓄水初期近坝区泥沙淤积形态的成因进行了初步探讨.研究结果表明坝前淤积形态的成因既与坝前水流流态的三维特性有关,又与水库蓄水初期坝前淤积物颗粒特性有关.水库蓄水初期沉积在近坝区的泥沙颗粒较细,初始干容重较低,使得淤积物表现出一定的浮泥特性.坝前淤积总量较大主要是宽谷河段水流特性造成的;而基底深槽处淤积物厚度较大、淤积面呈水平状的主要原因则是浮泥状淤积物在重力作用下向河底运动、并沿深泓线在基底深槽中汇集.
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| 关 键 词： | 三峡工程 水库淤积 浮泥 三维数值模拟 泥沙输运 |
| 收稿时间： | 2010-08-11 |
Preliminary analysis on the causes of reservoir sedimentation pattern in the vicinity of Three Gorges Project during its early filling |
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| JIA Dong-dong,SHAO Xue-jun,ZHANG Xing-nong,ZHOU Jian-yin.Preliminary analysis on the causes of reservoir sedimentation pattern in the vicinity of Three Gorges Project during its early filling[J].Advances in Water Science,2011,22(4):539-545. |
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| Authors: | JIA Dong-dong SHAO Xue-jun ZHANG Xing-nong ZHOU Jian-yin |
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| Institution: | 1.State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Nanjing Hydraulic Research Institute, Nanjing 210029, China;2.State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing 100084, China |
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| Abstract: | Sediment deposition in Three Gorges Reservoir(TGR) is likely to increase significantly after the filling of TGR.The causes of reservoir sedimentation pattern in the vicinity of Three Gorges Project(TGP) during the early filling of TGR are examined using the observed data and a 3D mathematical model for flow and sediment transport.Results show that the sedimentation characteristics in the vicinity of TGP are not only related to the 3D properties in flow patterns,but also related to the characters of deposite... |
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| Keywords: | Three Gorges Project reservoir sedimentation fluid mud 3D mathematical modeling sediment transport |
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