论文部分内容阅读
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
Applying the principle of superposition, the approximate solution of single drainage hole in finite element unit is derived based on the basic solution of point sink. Then, the theory of superposition of wells is applied to extend the analytical theory of a single drainage hole to multiple drainage holes in a unit. The quasi-analytical method of this drainage hole is applied to the finite element analysis of seepage control, which has the characteristics of fast iteration convergence and good accuracy. More importantly, there is no need to change the finite element mesh as in the “Sub-substructure Method”, but only to change a few of the drainage holes Control elements can be. Therefore, this method is more suitable for the optimization analysis of seepage control