Abstract: There is no successful experience on how to eliminate the seal coat fractured at the top owing to freezing on the facing in the winter for the concrete facing rockfill dams constructed in the northeastern region with extremely cold. We have summarized a new technology on watertight seal and frost prevention suitable for that. In this paper, the application and effects are introduced with the example of lotus dam.

摘要： 在东北严寒地区修建的面板堆石坝，如何消除冬季面板结冰造成顶部止水拉裂的破坏，目前国内尚无成功经验。我们通过大量的调研和现场反复试验，总结出适合严寒地区面板堆石坝顶部止水防冻新工艺。本文将阐述面板堆石坝顶部止水防冻新工艺在莲花电站面板堆石坝上的成功应用及效果。