院报 ›› 2019, Vol. 36 ›› Issue (7): 83-88.DOI: 10.11988/ckyyb.20171468

• 岩土工程 • 上一篇    下一篇

马镇渗流井现场试验及数值模拟研究

畅俊斌1,2, 柯贤敏3, 王玮4,5, 孙启明6, 田国林1,2   

  1. 1.陕西地矿九0八水文地质工程地质大队,西安 710600;
    2.陕西地矿集团有限公司 陕西省矿产资源勘查与综合利用重点实验室,西安 710054;
    3.中煤能源研究院有限责任公司 水文地质研究所,西安 710054;
    4.长安大学 环境科学与工程学院,西安 710054;
    5.长安大学 旱区地下水文与生态效应教育部重点实验室,西安 710054;
    6. 中圣环境科技发展有限公司 水文地质部,西安 710065
  • 收稿日期:2017-12-19 出版日期:2019-07-01 发布日期:2019-07-18
  • 通讯作者: 柯贤敏(1992-),男,陕西安康人,工程师,硕士,主要从事水文地质方面的研究。E-mail:857403571@qq.com
  • 作者简介:畅俊斌(1968-),男,陕西乾县人,高级工程师,主要从事水文地质、工程地质及环境地质方面的研究。E-mail:527458962@qq.com
  • 基金资助:
    陕西省地矿总公司地质科研专项资金项目(KY201503);国家自然科学基金项目(40972154)

Field Test and Numerical Simulation on Seepage Well of Mazhen County

CHANG Jun-bin1,2, KE Xian-min3, WANG Wei4,5, SUN Qi-ming6, TIAN Guo-lin1,2   

  1. 1.The 908 Brigade of Hydrogeology and Engineering Geology, Shaanxi Geology and Mining Group Co., Ltd., Xi’an 710600, China;
    2.Shaanxi Key Laboratory of Exploration and Comprehensive Utilization of MineralResources, Shaanxi Geology and Mining Group Co., Ltd., Xi’an 710054, China;
    3.Division of Hydrogeology,China Coal Energy Research Institute Co., Ltd., Xi’an 710054, China;
    4.School of Environmental Science andEngineering, Chang’an University, Xi’an 710054, China;
    5.Key Laboratory of Ministry of Education onSubsurface Hydrology and Ecological Effects in Arid Region, Chang’an University, Xi’an 710054, China;
    6.Department of Hydrogeology, Zhongsheng Environmental Technology Development Co., Ltd.,Xi’an 710065, China
  • Received:2017-12-19 Online:2019-07-01 Published:2019-07-18

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摘要： 为研究马镇研究区渗流井取水效果,采用地质雷达和钻孔相结合的方法揭示研究区地层,建立三维地层结构模型。对研究区合理概化,建立地下水数值模型,并利用渗流井抽水试验对模型识别和验证,确定出水文地质参数。对模型参数进行灵敏度分析,结果表明:第四系水平渗透系数对渗流井取水效果影响最大,河流渗漏补给系数C1值对渗流井出水量影响最小;对渗流井结构进行优化设计,得出辐射管仰角为20°～30°,洞室间距应设置在75～100 m之间时,渗流井取水效果较好。研究成果可为渗流井取水方式的广泛应用和提高取水效率提供指导。

关键词: 渗流井, 取水效率, 渗流-管流耦合模型, 灵敏度分析, 辐射管仰角, 洞室间距

Abstract: A 3D hydrological and stratigraphic structure model was built based on strata revealed by geological radar and drilling data to probe into the efficiency of water yield of seepage wells in Mazhen county. The model was identified and verified by pumping test of seepage well and the hydrogeological parameters were determined. Sensitivity analysis of the model parameters unveiled that the horizontal permeability coefficient of the quaternary strata had the greatest influence on the water intake effect of seepage well, while the value of recharge C1 of river had the least influence on the water intake of seepage well. Moreover, optimization design of the seepage well structure evinced that the angle of altitude of radiant tubes between 20° and 30° and spacing of chambers between 75 m and 100 m will result in a good efficiency of water intake by seepage well.

Key words: seepage well, water intake efficiency, coupled seepage-pipe flow model, sensitivity analysis, angle of altitude of radiant tubes, chamber spacing

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