文章摘要
王军辉,王峰.论抽水的降落漏斗范围、影响半径与环境影响范围[J].水利学报,2020,51(7):827-834
论抽水的降落漏斗范围、影响半径与环境影响范围
Discussion on the range of groundwater depression cone,radius of influence and scope of environmental impacts during pumping
投稿时间:2020-02-12  
DOI:10.13243/j.cnki.slxb.20200112
中文关键词: 地下水  井流  降落漏斗  影响半径  Dupuit公式  Theis公式  环境影响
英文关键词: groundwater  well flow  groundwater depression cone  radius of influence  Dupuit formula  Theis formula  environmental impact
基金项目:
作者单位
王军辉 北京市勘察设计研究院有限公司, 北京 100038 
王峰 北京市勘察设计研究院有限公司, 北京 100038 
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中文摘要:
      针对降落漏斗范围、影响半径与环境影响范围等3个既有联系又有区别的水文地质问题,从其科学性和实用性两个角度,开展了系统研究工作。首先,针对降落漏斗范围,通过一般的数学模型进行了深入的理论研究,研究结论得到了Dupuit模型和Theis模型等2个成熟井流模型的验证。然后,针对影响半径,在国内外经典文献基础上,以地下水动力学发展史为主线,对其理论基础进行了科学分析,着重分析了其模型基础和几何意义,梳理了其理论上的不足和主要存在争议之处,进而分析了其适用性和实用性,同时对非Thiem模型中的广义影响半径也进行了类似研究,得到了关于各类井流模型影响半径的一般共性认识。最后,结合抽水的环境风险评估和环境监测的需要,提出了“抽水环境影响范围”概念(包括一、二类环境影响范围)和一般求解方法,并根据实际应用需要,提出了Theis模型环境影响范围的解析解,其科学性和实用性得到了一个实际典型案例的验证。
英文摘要:
      Aiming at the three hydrogeological problems, such as the range of groundwater depression cone, radius of influence and scope of environmental impacts which are closely related to and different from each other, systematic research work is carried out from the perspective of theory and practicability. Firstly,according to the range of groundwater depression cone,through the analysis of a general mathemati-cal model, theoretical research is carried out, whose conclusion has been verified by two mature well flow models, i.e. Dupuit model and Theis model. Secondly, aiming at radius of influence, based on the classic literatures,taking the history of groundwater dynamics as the main thread,scientific analysis of its theoret-ical basis is carried out, which focus on its model basis and geometric significance, and upon which its theoretical deficiencies and main controversial points are combined, and then its applicability and practica-bility is analyzed. Meanwhile, similar analysis on the generalized radius of influence in non-Thiem model is also carried out, upon which the common understanding of radius of influence has been obtained. Final-ly, according to the needs of environmental evaluation and environmental monitoring during pumping, the concept of "scope of environmental impacts during pumping" (including first type and second type) and its general solution method are proposed, and according to the practical application, the analytical solution of scope of environmental impacts during pumping of Theis model is proposed, whose scientific nature and practicability is verified by a typical case.
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