混凝土面板堆石坝防浪墙顶高程确定方法探讨

关于混凝土面板堆石坝防浪墙顶高程的确定方法,(DL/T 5016-1999)《混凝土面板堆石坝设计规范》未予规定,通常的做法是采用(SL 274-2001)《碾压式土石坝设计规范》中给出的方法;但由于碾压式土石坝设计规范中给出的方法并未考虑防浪墙对波浪爬高的影响,对于采用低防浪墙的面板堆石坝,防浪墙的影响可以忽略;然而,对于采用较高防浪墙的面板堆石坝,此影响不容忽视。结合马来西亚巴贡混凝土面板堆石坝防浪墙顶高程的确定,给出了一种确定面板堆石坝防浪墙顶高程的简单方法。

On determination of the parapet wall crest elevation of CFRD

With regard to the determination for crest elevation of the parapet wall of CGRD,no method is given in the Design Specifications for Concrete Face Rockfill Dams(DL/T 5016-1999),and it is the normal way to use the method provided in the Design Code for Rolled Earth-rockfill Dams(SL 274-2001).However,owing to the effect of the parapet wall on wave run-up being not considered in the method provided in the Design Code for Rolled Earth-rockfill Dams(SL 274-2001),the effect of CFRD with low parapet wall on wave run-up may be omitted,but for the CFRD with high parapet wall,this effect can not be neglected.This paper presents a simple way to determine crest elevation of the parapet wall of CFRD with high parapet wall in combination with the practice applied for Bakun CFRD in Malaysia.