基于 MATLAB的地下水流量与水位降深关系的一种优化计算方法李继超 ,桑有明 ,邓 宇 ,袁章均 [收稿日期 ] - 11 - 27 [作者简介 ]李继超 (1982— ) ,男 ,湖北仙桃人 ,助理工程师 ,主要从事岩土工程方向研究。 (中国冶金建设集团成都勘察研究总院 ,四川 成都 610031) [摘 要 ]相比理论公式法 ,基于最小二乘法原理及其计算方法 ,结合 MATLAB数值分析软件对抽水试验数据进行曲线拟合 ,求得拟合公式 ,同时得 Q - s w 关系曲线的计算和绘制转化为计算机来处理 ,避免了手工绘制和计算求解时存在的各种人为缺陷 ;公式能够对勘探孔的 Q - s w 关系进行定性定量的分 析 ,降低误差因素影响 ,提高预报流量的可信度。 [关键词 ]抽水试验 ;预报流量 ;曲线拟合 ;最小二乘法 ;MATLAB数值分析 [中图分类号 ]P64112[文献标识码 ]A[文章编号 ]1004 - 1184 () 02 - 0020 - 03 An Optim ized Calculation M ethod about the Relation between Groundwater Flow and Water Levels Drop Based on MATLAB L I Ji- chao, SANG You - m ing, DENG Yu, YUAN Zhang - jun (ChengDu Geotechnical Investigation and Surveying Institute, MCC , SiChuan, ChengDu, 610031) Abstract: Compared with the theoretical formula, the fitting formula can be obtained through the curve fit2ting to the pumping test data bymeans of the numerical analysis software withMATLAB on the basis of the least square principle and its calculation method. The fitting formula could be used to analyze the Q - sw relationship between exploratory hole qualitatively and quanlitatively, reduce the influence of error factor and improve the credibility of the flow prediction, and provide a reliable scientific and rational basis for the project. The whole process can be worked effectively, and have certain value in the water - supply and hydrological surveys. Key W ords:pumping test, flow prediction, curve fitting, least square method and numerical analysiswith MATLAB 0
