| 古河槽深覆盖层渗流控制措施 |
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| 引用本文： | 邓春生,赵坚,任杰,洪新.古河槽深覆盖层渗流控制措施[J].武汉大学学报(工学版),2011,44(2). |
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| 作者姓名： | 邓春生 赵坚 任杰 洪新 |
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| 作者单位： | 1. 河海大学水利水电学院,江苏,南京,210098
2. 新疆水利水电勘测设计研究院,新疆,乌鲁木齐,830000 |
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| 基金项目： | 国家自然科学基金重点项目，河海大学水文水资源与水利工程科学国家重点实验室专项基金，水利部公益性项目，江苏省普通高校研究生科研创新计划 |
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| 摘 要： | 新疆某水电站工程左岸V级阶地以下分布有3条古河槽,蓄水后左岸存在渗漏问题.采用三维有限元法对坝址区左岸渗流场进行计算分析,评价古河槽砂卵砾石层和副坝的渗透稳定性,并提出了渗流控制措施建议.计算分析表明,1号古河槽仅采用表层黄土进行防渗的方案不能满足渗透稳定性要求,需要增设粘土铺盖或混凝土面板.根据本工程的实际情况,建议采用混凝土面板方案F5,此时砂砾石层的最大渗透坡降为0.101 2,3条古河槽总渗透流量为670万m3/年,可以满足渗透稳定和渗流量的要求.
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| 关 键 词： | 深覆盖层 古河槽 三维渗流有限元法 渗流量 渗透稳定性 |
Seepage control measures for ancient river channel on deep overburden layer |
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| DENG Chunsheng,ZHAO Jian,REN Jie,HONG Xin.Seepage control measures for ancient river channel on deep overburden layer[J].Engineering Journal of Wuhan University,2011,44(2). |
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| Authors: | DENG Chunsheng ZHAO Jian REN Jie HONG Xin |
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| Affiliation: | DENG Chunsheng1,ZHAO Jian1,REN Jie1,HONG Xin2(1.College of Water Conservancy and Hydropower Engineering,Hohai University,Nanjing 210098,China,2.Xinjiang Investigation and Design Institute of Water Resources and Hydropower,Urumqi 830000,China) |
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| Abstract: | Three ancient river channels are distributed under V terraces of right bank of a hydropower station.After storage,the left bank exhibits leakage.A 3D finite elements is adopted to calculate seepage field of left bank and evaluate seepage stability of the ancient river bed sand and gravel layer and auxiliary dam.Some seepage control measures are proposed.The result shows that for the ancient river channel #1 surface loess measure can not satisfy requirements of seepage stability.Clay blanket or concrete pane... |
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| Keywords: | deep overburden layer ancient river channel three-dimensional seepage finite element method seepage seepage stability |
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