【摘要】 应用叠加原理 ,在点汇基本解的基础上 ,推导出了有限元单元内单个排水孔的近似解表达式。然后 ,应用井群的叠加原理 ,将单个排水孔的解析理论推广到单元内多个排水孔的情况。这种排水孔的准解析方法应用于渗流控制有限元分析 ,具有迭代收敛速度快、精度好的特点。更为重要的是 ,对密集排水孔渗流控制布置方案 (方位或轴线 )的改变 ,不需要像“排水子结构法”那样重新改变有限元网格 ,而仅需改变排水孔极少的几个控制要素即可。因而 ,该方法更加适用于渗流控制优化分析研究更多还原

【Abstract】 Based on the point set base solutions, the approximate solution formula of single drainage hole in the finite element has been ascertained by the superposition principle. Then using the superposition principle of well group, the analytic theory of single drainage hole is spread to multiple drainage holes in the element. More important, the change of the close drainage hole seepage control scheme (its position or axis change) can remain the original finite element network by only changing few control parameters of drainage hole. Therefore such method is more suitable to the optimal analysis and study on seepage control.更多还原