[1]高丹盈,杨素娟,李占松,等.南水北调大沙河渠道排水非稳定渗流计算分析[J].郑州大学学报(工学版),2010,31(05):27-31.[doi:10.3969/j.issn.1671-6833.2010.05.007]
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南水北调大沙河渠道排水非稳定渗流计算分析()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
31
期数:
2010年05期
页码:
27-31
栏目:
出版日期:
2010-09-30

文章信息/Info

作者:
高丹盈杨素娟李占松等.
郑州大学,水利与环境学院,河南,郑州,450001, 河南省水利勘测设计研究有限公司,河南,郑州,450008
关键词:
有限元 排水系统 非稳定渗流
DOI:
10.3969/j.issn.1671-6833.2010.05.007
摘要:
用有限元方法进行了南水北调工程大沙河段渠道排水非稳定渗流计算,分析了排水管间距、砂层厚度、基础土层的渗透性对渠道内外水头差的影响.结果表明:在一定范围内增加排水管间距,村砌内外最大水头差增大;增加砂层厚度可以有效减小渠道内外水头差;随着基础土体渗透系数的减小,粗砂层的排水通道作用更加突出,渠道内外水头差明显减小;非稳定渗流对渠道衬砌稳定影响较大,在渠道排水结构设计中应作为控制工况.

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更新日期/Last Update: 1900-01-01