中宁县黄河滩地傍河取水工程辐射井设计与施工
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宁夏水投中宁水务有限公司,宁夏水投中宁水务有限公司,北京中水科工程总公司,北京中水科工程总公司

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TU991.12

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国家科技支撑项目(编号:2015BAD20B02-02)


Design and Construction of Radial Well for Water Intake Project near River in Yellow River Beach of Zhongning County
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Ningxia Water Investment Zhongning Limited Company,Ningxia Water Investment Zhongning Limited Company,Beijing IWHR Company,Beijing IWHR Company

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    摘要:

    中宁县地处黄河中游,黄河滩地地下水受黄河补给,是具有巨大开采潜力的水源地。针对中宁黄河滩地第四系含粘粒土砂卵石地层的傍河水源地,选择辐射井作为取水建筑物,完成5眼辐射井。集水井成孔采用反循环方法,并配有专用钻头打捞含水层中粒径>200 mm的漂石,用具有扭力、推力、拉力和振冲力的全液压水平钻机进行水平辐射管施工。采用“等效大口井法”计算辐射井抽水量。对抽水试验的数据及相关资料进行分析,比较辐射井、管井和大口井的稳定出水量和降深,结果表明采用辐射井开采类似水源地是有效的取水方式。

    Abstract:

    Zhongning County is located in the middle Yellow River. Yellow River beach groundwater is supplied by Yellow River, which has great potential for mining water. For the riverside well field in the Quaternary clay sand gravel stratum of Zhongning Yellow River beach, radial well was selected to be water conservancy building and 5 wells were completed. The collecting well was constructed with reverse circulation method and special bit was equipped to fish the boulders in aquifer with particle size more than 200mm, the horizontal radiation tube was constructed by full hydraulic horizontal drilling rig with torque, thrust force, pulling force and vibro-compaction. The “equivalent big diameter well” was used to calculate pumping capacity of radial well. The data of pumping test and related information were analyzed to compare the stable water yield and drawdown of radial well, tubular well and large diameter well, the results show that the radial well is an effective way for the exploitation in the similar water resources.

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张志军,张伟,陈霄,等.中宁县黄河滩地傍河取水工程辐射井设计与施工[J].钻探工程,2017,44(3):69-72.
ZHANG Zhi-jun, ZHANG Wei, CHEN Xiao, et al. Design and Construction of Radial Well for Water Intake Project near River in Yellow River Beach of Zhongning County[J]. Drilling Engineering, 2017,44(3):69-72.

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  • 收稿日期:2016-07-20
  • 最后修改日期:2016-07-20
  • 录用日期:2016-09-01
  • 在线发布日期: 2017-04-14
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