长江科学院院报 ›› 2016, Vol. 33 ›› Issue (5): 151-154.DOI: 10.11988/ckyyb.20151072

• 第八届全国水利工程渗流学术研讨会专栏 • 上一篇    

减压井运行效果影响因素数值分析

李景娟1,2,3, 杨阳1,3,4, 段祥宝1,3, 谢罗峰1,3, 周鑫3   

  1. 1.南京水利科学研究院 水工所,南京 210029;
    2.河海大学 水利水电学院,南京 210098;
    3.水利部堤防安全与病害防治工程技术研究中心,郑州 450003;
    4.镇江市长江河道管理处, 江苏 镇江 212000
  • 收稿日期:2015-12-15 出版日期:2016-05-01 发布日期:2016-05-10
  • 作者简介:李景娟(1989-),女,湖北黄冈人,硕士研究生,研究方向为岩土渗流控制,(电话)15251850145(电子信箱)ailijj@126.com。
  • 基金资助:
    水利部地方安全与病害防治工程技术研究中心开放基金(201506)

Numerical Analysis on Factors Affecting the Effectiveness of Relief-well

LI Jing-juan1,2,3, YANG Yang1,3,4, DUAN Xiang-bao1,3, XIE Luo-feng1,3, ZHOU Xin3   

  1. 1.Hydraulics Department, Nanjing Hydraulic Research Institute, Nanjing 210029, China;
    2.College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, China;
    3.Research Center on Dike Safety and Disease Prevention Engineering of MWR, Zhengzhou 450003, China;
    4.Yangtze River Management Office of Zhenjiang,Zhenjiang 212000, China
  • Received:2015-12-15 Online:2016-05-01 Published:2016-05-10

摘要: 针对减压井运行效果,开展数值模拟分析。对减压井贯入深度、井管直径、井间距、出水口高程以及滤层透水性等因素,进行二维渗流有限元计算,分析各个因素对减压井淤堵的作用大小及影响规律。计算结果表明:减压井贯入深度与滤层透水性对其效果影响很大,且随着贯入深度增加,滤层透水性增高,减压井出水效果逐渐提升;井管直径对井效影响较小,直径越大减压效果越好,但提升幅度不大;井间距和出水口高程对减压效果影响不大。

关键词: 减压井, 运行效果, 有限单元法, 贯入深度, 透水性

Abstract: To obtain the effectiveness of relief-well, we performed two-dimensional seepage calculations on factors inclusive of penetration depth, pipe diameter, spacing, outlet elevation and filter-layer permeability by finite element method. According to the calculation results, we analyzed the effect of each factor on relief-well clogging and the influence regularities as follows: the penetration depth and filter-layer’s permeability have great impact on relief-well, and with the increase of penetration depth and filter-layer’s permeability, the effectiveness of relief-well gradually enhanced; pipe diameter has less effect on the relief-well, with the increase of pipe diameter, the effectiveness of relief-well gradually improved, but not much. The spacing between relief-wells and the elevation of outlet have not much influence on the effectiveness of relief-well.

Key words: relief-well, operation effect, finite element method, penetration depth, permeability

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