基于高混凝土面板坝压性垂直缝设计

摘要

High concrete face rockfill dam is widely used in dam construction,but the joints of the face rockfill dam often produce seepage,resulting in severe seepage and dam failure that influence the operation of the dam,in which the design of pressure vertical joints has great significance for reducing seepage and avoiding dam failure.The failure phenomena of pressure vertical joints are introduced and popular design methods are summarized through a number of real examples,some improved measures are analysed for the design.%高混凝土面板坝在大坝建设工程中应用较为广泛，但在实际中经常会出现面板缝渗漏现象，从而导致渗漏或跨坝事故，严重影响大坝的运行。其中压性垂直缝的设计对避免或减少渗漏及跨坝事故的发生具有非常重要的意义。文章对高混凝土面板坝垂直缝挤压破坏现象进行了简介，并通过几个实例总结了常用的高混凝土面板坝压性垂直缝设计方法，最后分析了几种改进高混凝土面板坝压性垂直缝设计方法的措施。