[1]黄瑶,陈闯,杨青森,等.坝坡土工膜损伤对水库坝体边坡安全稳定的影响[J].江苏水利,2025,(05):47-52.
HUANG Yao,CHEN Chuang,YANG Qingsen,et al.Influence of geomembrane defects on dam slopes on the safety and stability of reservoir embankments[J].JIANGSU WATER RESOURCES,2025,(05):47-52.
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坝坡土工膜损伤对水库坝体边坡安全稳定的影响(
)
《江苏水利》[ISSN:1006-6977/CN:61-1281/TN]
- 卷:
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- 期数:
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2025年05期
- 页码:
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47-52
- 栏目:
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水利工程建设
- 出版日期:
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2025-05-15
文章信息/Info
- Title:
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Influence of geomembrane defects on dam slopes on the safety and stability of reservoir embankments
- 文章编号:
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1007-7839(2025)05-0047-0006
- 作者:
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黄瑶1; 陈闯2; 杨青森2; 颜泽群1; 司帅1
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(1. 江苏省鸿源招标代理股份有限公司,江苏 宿迁 213800;2. 宿迁市水务勘测设计研究有限公司,江苏 宿迁 223899)
- Author(s):
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HUANG Yao1; CHEN Chuang2; YANG Qingsen2; YAN Zequn1; SI Shuai1
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(1. Jiangsu Hongyuan Tendering Agency Co., Ltd., Suqian 213800, China;2. Suqian Water Resources Survey and Design Research Co., Ltd., Suqian 223899, China)
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- 关键词:
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大坝安全; 土工膜缺陷; 下游破坏长度; 有限元计算
- Keywords:
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dam safety; geomembrane defects; downstream damage length; finite element calculation
- 分类号:
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TV223.4
- 文献标志码:
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A
- 摘要:
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为探索水库上游坝坡土工膜缺陷以及下游水平破坏长度对大坝安全稳定的影响规律,通过有限元计算模拟的方式对该问题进行研究。得到结论如下:上游坝坡土工膜出现缺陷会使围坝发生渗透变形并在下游坝脚处造成破坏,并且下游坝脚的破坏长度对大坝的整体安全稳定性有显著的影响。此外,坝坡渗漏出逸点的允许渗透坡降所对应的上游坝坡土工膜的缺陷面积为0.45 m2,在此缺陷面积的情况下随着下游水平破坏长度的增加,下游边坡最小安全稳定系数会不断减小,大坝结构失稳的下游坝脚水平破坏长度的临界值为14.28 m。本次研究成果可以为相关工程提供参考。
- Abstract:
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In order to explore the influence rules of the geomembrane defects on the upstream dam slope of the reservoir and the length of the horizontal damage on the downstream side on the safety and stability of the dam, this problem is studied through the finite element calculation and simulation method. The following conclusions are obtained: The occurrence of defects in the geomembrane on the upstream dam slope of the reservoir will cause seepage deformation of the embankment and lead to damage at the downstream toe of the dam. Moreover, the length of the damage at the downstream toe of the dam has a significant impact on the overall safety and stability of the dam. In addition, the defect area of the geomembrane on the upstream dam slope corresponding to the allowable seepage gradient at the seepage exit point of the dam slope is 0.45 square meters. Under the condition of this defect area, as the length of the downstream horizontal damage increases, the minimum safety and stability coefficient of the downstream slope will continuously decrease. The critical value of the length of the horizontal damage at the downstream toe of the dam, at which the dam structure becomes unstable, is 14.28 meters. The research results of this study can provide a reference for related projects.
参考文献/References:
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备注/Memo
- 备注/Memo:
-
收稿日期:2025-02-16
作者简介:黄瑶(1990—),女,工程师,硕士,主要从事水利工程设计方面研究。E-mail:3076731544@qq.com
通信作者:陈闯(1990—),男,工程师,硕士,主要从事水利工程设计方面研究。E-mail:904513032@qq.com
更新日期/Last Update:
2025-05-15