强震区山谷灰场排渗设计

The Drain-off Percolation Design of Ash Pond in Valley of Constent Earthquack

从沉积粉煤灰颗粒分布、渗流特点和石庄头灰场三维渗流有限元计算，揭示初期透水坝排渗设施所降低的浸润线，只能使粉煤灰坝处于静力稳定或较低地震区的抗震稳定；初期透水坝排渗设施加沿山沟贴坡反滤层设施，能较大幅度降低浸润线，使粉煤灰坝处于强震稳定状态。

The drain off percolation installation of ash pond in valley of constent earthquack a is of all makes. From the point riew of gram distribution over an area of the deposit ash,the percolation water characteristic and the three—D percolation water calculatirn of the ash pond in Shizhuangtou,it reveales that the drop soakig line of the drain-off percolation installations in the primary dam can only keep the ash dam firm at a static state or anti-seismic firm in a week earthquack area. But the drain-off percolation installation in the primary dam reinforced by the drain-off percolalion installation of the hem on the channel can low down the soaking line significently and keep firm on strong earthquack area.