面板堆石坝变形与渗流安全指标

Safety Index on Deformation and Seepage of Qinshan CFRD

混凝土面板堆石坝的坝体变形及由此引起的混凝土面板开裂、坝体渗漏和渗流破坏等问题,是直接影响到大坝安全的关键因素,长期以来,工程界对于混凝土面板坝的变形与渗流安全控制指标尚无统一的标准,依托福建芹山混凝土面板堆石坝的运行状况,开展了混凝土面板堆石坝变形与渗流安全指标体系研究,提出了以堆石体内外变形(尤其外部变形)和坝后渗漏量判断面板工作状态的方法。

Deformation of rockfill and the problems caused by it,such as cracking of concrete face slab,leakage and seepage damage,etc.are the major concerns on dam safety.For a long time,there are no well accepted standard for the safety index of dam deformation and seepage.Based on the operation of Qinshan CFRD,the studies on deformation and seepage safety index system of CFRD are conducted.The methods for assessing safety status of CFRD via rockfill deformation(especially the external deformation)and measured leakage are put forward.