摘要
在一均质、等向地层含水层内,如果同时存在群井抽(注)水、群渗漏池(塘)渗漏、灌溉补给等多种活动,含水层内将形成一渗流相互干扰的复杂的地下水流场.要想求解这一流场的地下水流态,先把这一复杂流场分解为井、池、灌溉等若干个简单流场,利用渗流基本方程及各简单流场的边界条件,分别推导出它们的势函数Φi,再利用势的可叠加原理,叠加这些势函数,求出这一复杂流场的综合势函数Φ,由综合势函数求出流场内各计算点的流动要素Φ、Qx、Qy.利用这些要素可绘制出地下水位等高线和要素等值线图,以便定量了解流场流态.上述计算工作由SLWJL程序和其它绘图程序用计算机未完成.本文还列出了3个算例,以便读者参阅.
If several popular activities, such as wells pumping, ponds leakage, irrigation infiltration and soon, simultaneously exist in an acguifer, then a complex flow field are created in this acquifer in which thegroundwater seepage feature well be disturbed each other by pumping, leakage and infiltration. The solution ofthis complex flow field can be done that: first, separate this complex flow field to several simple flow field;second, derive their potential function by using the seepage basic equations and boundary conditions of eachfield; third, superpose those potential functions by according to the potential superposition principle and createa synthesize potential function ; finally, using calculate the flow factors, Qx, Qy of each computing pointfor this conplex field. By these flow factors, the contour line of groundwater head 4 and unit discharge Qx, Qy,can be drawn. The above calculation are exacuted by SLWJL computer program and other drawing program.Three samples are shown in this text.
出处
《水利水电技术》
CSCD
北大核心
1999年第2期19-25,共7页
Water Resources and Hydropower Engineering