减压井在汉江遥堤管涌险情整治中的应用效果

崔皓东; 裴怡; 李少龙; 范越

doi:10.11988/ckyyb.20240208

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长江科学院院报 ›› 2024, Vol. 41 ›› Issue (11) : 82-87. DOI: 10.11988/ckyyb.20240208

水灾害

减压井在汉江遥堤管涌险情整治中的应用效果

作者信息 +

Application Effect of Relief Wells in the Treatment of Piping Emergency in Yaodi Levee of Hanjiang River

Author information +

文章历史 +

摘要

汉江遥堤属国家Ⅰ级堤防,是汉北平原和武汉市的重要防洪安全屏障,天门李家洲段为历史险段;2021年汉江秋汛该段发生管涌群险情,汛后除险加固采用了新型减压井技术。根据地质和设计资料建立了三维精细有限元渗流模型,开展了减压井效果论证,为减压井设计提供参数依据。模拟表明,洪水工况下减压井具有显著的排水减压效果,堤内满足渗透稳定要求。2023年汉江洪水期该堤段水位超2021年出险时外江水位约1.3 m,堤内再无管涌险情发生,减压井发挥了显著的防洪减灾效益。实际应用表明,针对典型的二元结构堤基管涌险情隐患,减压井是最有效措施之一。研究成果可为类似堤防管涌隐患处理提供借鉴。

Abstract

Yaodi levee of Hanjiang River is a national first-class embankment, serving as an important flood control barrier safeguarding the Hanbei Plain and Wuhan City. The Lijiazhou levee of Tianmen City is a historical danger section, with a series of piping dangers occurred in this section of the Hanjiang River during the autumn flood season of 2021. A new design of relief well was applied to treat hidden danger of piping in 2022. A three-dimensional seepage model was established and the effect of relief well under different working conditions was analyzed for design. Simulation data shows that the relief well has a significant drainage and pressure reduction effect, and the permeability stability meets the requirements under flood conditions. No piping danger occurred during the 2023 flood period of the Hanjiang River when the flood level was 1.3 m higher than the flood level during 2021 in this embankment section. It indicates that the relief wells played a significant role in flood control and disaster reduction. Practical application shows that relief well is one of the most effective measures for typical pipe surge hazards of binary structure embankment foundation. This study provides references for dealing with similar levee pipe surge hazards.

导出引用

崔皓东, 裴怡, 李少龙, 等. 减压井在汉江遥堤管涌险情整治中的应用效果[J]. 长江科学院院报. 2024, 41(11): 82-87 https://doi.org/10.11988/ckyyb.20240208

CUI Hao-dong, PEI Yi, LI Shao-long, et al. Application Effect of Relief Wells in the Treatment of Piping Emergency in Yaodi Levee of Hanjiang River[J]. Journal of Yangtze River Scientific Research Institute. 2024, 41(11): 82-87 https://doi.org/10.11988/ckyyb.20240208

中图分类号： TV871.3 (堤防防汛与抢险)

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