Dupuit稳定井流公式的模型分析.pdfVIP

第42 卷 第6 期 煤田地质与勘探 Vol. 42 No.6 2014 年 12 月 COAL GEOLOGY EXPLORATION Dec. 2014 文章编号: 1001-1986(2014)06-0073-03 Dupuit 稳定井流公式的模型分析 1 2 1 2 王晓明 ，王秀辉 ，文 望 ，李功宇 (1. 西安科技大学地质与环境学院，陕西 西安710054； 2. 中煤科工集团西安研究院有限公司，陕西 西安 710077) : Dupuit 稳定井流模型和公式自 1863 年提出，至今已有一百多年了，时间横跨3 个世纪。由 于其原理的简单及公式的简洁，人们仍在使用。而人们对Dupuit 模型以及有关概念的认识，仍然 存在很大的差异和误区。通过分析Dupuit 稳定流模型及公式，指出Dupuit 模型及公式中本身就不 含有影响半径的概念。将 Thiem 提出的影响半径的概念理解为含水层的一个参数，一个不变的常 数，并试图寻求一个具有代表性的平均影响半径是没有理论依据的。 ：影响半径；Dupuit 公式；圆岛形模型；稳定流 ：P641.2 ：A DOI: 10.3969/j.issn.1001-1986.2014.06.015 Model analysis of Dupuit’s steady well flow formula 1 2 1 2 WANG Xiaoming , WANG Xiuhui , WEN Wang , LI Gongyu (1. College of Geology and Environment, Xi ′an University of Science and Technology, Xi ′an 710054, China; 2. Xi ′an Research Institute, China Coal Technology and Engineering Group Corp, Xi ′an 710077, China) Abstract: It has been more than 100 years, spanning three centuries since Dupuit proposed the steady well flow model and the Dupit formula. Due to the simple principle and the concise formula, Dupit formula is still in use. However, there have been a lot of disputes and misunderstandings about Dupuit’s model, Dupuit’s formula and relative concepts. Through analyzing Dupuit model and Dupit formula, this paper points out that the Dupuit model and the formula itself do not contain the concept of radius of influence. The concept of the influence radius was understood as one of aquifer parameters, trying to seek a representative average influence radius is lack of enough theoretical basis. Key