[1]陈海宽,张 凯,孟 颖,等.大型地下涵洞三维渗流场有限元分析[J].江苏水利,2020,(12):56-60.
　CHEN Haikuan,ZHANG Kai,MENG Ying,et al.Finite element analysis of 3D seepage field in large underground culvert[J].JIANGSU WATER RESOURCES,2020,(12):56-60.
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大型地下涵洞三维渗流场有限元分析()
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《江苏水利》[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2020年12期
页码:
56-60
栏目:
水利工程建设
出版日期:
2020-12-28

文章信息/Info

Title:
Finite element analysis of 3D seepage field in large underground culvert
文章编号:
1007-7839(2020)12-0056-05
作者:
陈海宽1;  张 凯2;  孟 颖2;  程正飞2*
1.淮安市水利工程建设管理服务中心, 江苏 淮安 223000; 2.南京水利科学研究院, 江苏 南京 210029
Author(s):
CHEN Haikuan1; ZHANG Kai2; MENG Ying2; CHENG Zhengfei2*
1.Huai'an Water Conservancy Construction Management Service Center, Huai'an 223000, China; 2.Nanjing Hydraulic Research Institute, Nanjing 210029, China
关键词:
地下涵洞;  三维渗流场;  有限元分析;  敏感性分析;  接缝止水
Keywords:
underground culvert;  3D seepage field;  finite element analysis;  sensitivity analysis;  joint water-stop
分类号:
TV672; TV139.1
文献标志码:
A
摘要:
因工程规模庞大、结构复杂以及运行条件影响因素多等特点,大型地下涵洞渗流场分布难以预测,因而对其开展渗流场有限元分析具有重要意义。以六塘河地下涵洞为例,建立较为精细的三维整体计算模型,采用有限元渗流模型对其接缝止水完好和出现不同程度透水情况下的渗流场分别进行了数值模拟,并重点分析了接缝止水防渗性能改变对渗流场的影响。结果表明:当接缝止水透水性增大时,六塘河地下涵洞渗流性态发生明显改变; 当接缝止水达到强透水时,渗流量接近接缝完好时的3倍,接缝处最大水力坡降达到3.82,易引起渗透破坏,影响工程安全运行。
Abstract:
It is difficult to predict the distribution of seepage field in large underground culverts due to the large scale, complex structure and many influencing factors of operation conditions, so it is of great significance to carry out finite element analysis of seepage field in large underground culverts. Taking the underground culvert of Liutang River as an example, a more detailed three-dimensional integral calculation model was established. The finite element seepage model was used to numerically simulate the seepage field under conditions of good joint water-stop and different degrees of permeability, and the influence of changes in anti-seepage performance of joint water-stop on the seepage field was emphatically analyzed. The results showed that the seepage behavior of the underground culvert of Liutang River changed obviously when the joint water-stop permeability increased. When the joint water-stop reached strong permeability, the seepage flow was close to 3 times of good joint water-stop, and the maximum hydraulic gradient at the joint reached 3.82, which was easy to cause seepage damage and affected the safe operation of the project.

参考文献/References:

[1] 马平均, 谷换玲. 从古运河枢纽谈大型输水涵洞混凝土施工裂缝防止[J]. 南水北调与水利科技, 2007, 5(B6):99-101.
[2] 邓玉华, 王红星, 陈伯进. 通江涵洞渗漏隐患的处理技术综述[J]. 江苏水利, 2014(7):26-27.
[3] 张立新, 韩仲凯, 杨令强. 均质土石坝放水涵洞渗流与稳定分析[J]. 山东水利, 2017(10):42-44.
[4] 李爱华. 沭阳闸柴米河地下涵洞漏水原因分析及对策探讨[J]. 江苏水利, 2002(12):32-33.
[5] 张兴胜, 宋丽娟, 董金玉, 等. 土坝渗流侵蚀机制及有限元计算[J]. 岩石力学与工程学报, 2015(5):173-180.
[6] 李远东. 渗流有限元数值计算及其在基坑工程中的应用[D]. 烟台:烟台大学, 2017.
[7] 朱浩, 谭志国, 朱春光,等. 隧道穿越段长江堤防渗流原因分析及消险加固方案[J]. 江苏水利, 2018, 258(10):32-37.
[8] 张丙印, 朱京义, 王昆泰. 非饱和土水气两相渗流有限元数值模型[J]. 岩土工程学报, 2002, 24(6):701-705.
[9] 何佳欢, 许增光, 柴军瑞, 等. 某地下水库在不同降雨条件下非稳定渗流分析[J]. 南水北调与水利科技, 2019, 17(3):56-66.

备注/Memo

备注/Memo:
收稿日期:2020-07-02
基金项目:国家重点研发计划资助项目(2018YFC1508603); 国家自然科学基金面上项目(51679151); 中央级公益性科研院所基本科研业务费专项资金项目(Y718007, Y719006)
作者简介:陈海宽(1969—),男,高级工程师,主要从事水利工程建设与管理工作。E-mail: 2577480366@qq.com
通信作者:程正飞(1988—),男,博士,主要从事水工渗流分析与控制研究工作。E-mail: 552011512@qq.com
更新日期/Last Update: 2020-12-20