长江科学院院报2017，Vol.34Issue(1)：19-23,5.DOI:10.11988/ckyyb.20150884
求直线供水边界抽水试验水文地质参数的解析法
Analytical Method for Obtaining Hydrogeological Parameters Through Pumping Test with Straight Recharge Boundary
摘要
Abstract
Under the condition of non-steady flow, the obtaining of hydrogeological parameters through pumping test with straight recharge boundary involves the transcendental equation of 3 ( boundary direction known, position un-known) or 4 ( both boundary direction and position unknown) unknowns, which could not be solved by convention-al analytical methods. The existing methods, including method of specific standard curve comparison, method of in-flection point, simplified algorithm, nonlinear least square method and binary linear regression method, are incon-venient for practical engineering as they are dependent on graph with complicated calculation process, limited appli-cation range and big calculation error. In this article, optimization fitting method was employed to adapt to the engi-neering parameter range, and the substitution of simple function for the Theis well function of non-steady flow was carried out. Furthermore, a simplified analytic expression for the parameters was obtained by summarizing the draw-down ratio formulas. The calculation process is simple and convenient for practical use.关键词
直线供水边界/水位降深比值/水文地质参数/优化拟合/解析计算Key words
straight-line recharge boundary/water level drawdown ratio/hydrogeological parameters/optimization fitting/analytic calculation分类
天文与地球科学引用本文复制引用
滕凯..求直线供水边界抽水试验水文地质参数的解析法[J].长江科学院院报,2017,34(1):19-23,5.基金项目
齐齐哈尔市科技攻关项目( NYGG201301) （ NYGG201301）
