摘要
针对减压井技术在洞庭湖区尤其是多元结构地层中适用性的研究较为匮乏的问题,以洞庭湖重点垸堤防加固工程为背景,对长春垸二元结构及多元结构堤基的堤防渗流安全开展模拟分析,系统评价防渗墙与减压井在不同地层结构形式下的堤防渗流安全,对比研究减压井在不同结构地层中应用效果的差异,验证减压井对于湖区多元结构地层的适配能力。结果表明:在洞庭湖区二元结构地层应用减压井时,单井排水量较大,减压效果显著;多元结构地层中效果虽不及在二元结构地层中显著,但仍能有效消减堤内承压水,保障堤防渗流安全。研究成果可为洞庭湖重点垸堤防加固工程的渗控设计提供参考。
In response to the lack of research on the applicability of relief well technology in the Dongting Lake area,especially in the multivariate structural strata,we took the key embankment reinforcement project of Dongting Lake as the background,conducted simulation analysis on the seepage safety of Changchun embankment′s binary structure and multivariate structural embankment foundation,systematically evaluated the seepage safety of anti-seepage walls and relief wells in different geological structure forms,compared and studied the differences in the application effect of relief wells in different structural strata,and verified the adaptability of relief wells to multivariate structural strata in the lake area.The results showed that when applying relief wells in the dual structure strata of Dongting Lake area,the single well drainage was large and the pressure relief effect was significant.Although the effectiveness of its use in multivariate structure formations was not as significant as in binary structure formations,it could still effectively reduce the pressure of confined water inside the embankment and ensure the safety of seepage in the embankment.The research results can provide a reference for the seepage control design of key embankment reinforcement projects in Dongting Lake.
作者
王导勇
崔皓东
唐尧
范越
WANG Daoyong;CUI Haodong;TANG Yao;FAN Yue(Hunan Water Resources Hydropower Survey,Design,Planning and Research Co.,Ltd.,Changsha 410002,China;Key Laboratory of Geotechnical Mechanics and Engineering of Ministry of Water Resources,Changjiang River Scientific Research Institute,Wuhan 430010,China)
出处
《水利水电快报》
2024年第8期65-71,95,共8页
Express Water Resources & Hydropower Information
基金
国家重点研发计划项目(2023YFC3209500):中央级公益性科研院所基本科研业务费项目(CKSF2023306/YT)。
关键词
洞庭湖区堤防
减压井
二元结构地层
多元结构地层
Dongting Lake area levee
relief well
dual structure strata
multivariate structural strata
