土坝与土石坝渗流控制技术发展的回顾与展望

Review and Prospect of Development of Seepage Control Technique for Earth Dams and Earth-Rockfill Dams

二十多年来,土石坝得到了迅速发展,无论是坝的建筑高度或建设数量都大大超过了其它坝型。土石坝大力发展的重要原因之一,是由于渗流控制技术的迅速发展。本文从土石坝渗透破坏的机理、防渗体裂缝的处理方法、反滤层的设计、防渗体土料的用料范围以及防渗体同基岩和混凝土建筑物的连接形式等方面,对土坝及土石坝渗流控制技术的发展进行了回顾与展望。

In resent 20 odd years, earth and earth-rockfill dams have fast developed both dam heights and numbers excessing other dam types. One of the important causes of the development is continuous improvement of the seepage control technique. This paper reviewed and looked forward to the development of seepage control technique following respects, research on the machanism of seepage damage, treatment of cracks within impervious core of dams, design of filters, materials used for seepage prevention, and contact of impervious core with rock foundation or concrete structures.