摘要
文章采用水力学方法对圆柱和圆台两种典型水下夯锤的夯击效能进行试验分析。分析结果表明:各类型水下夯锤随着夯次的增加其不同点位的击打效能总体呈现递增变化,在相同点位下,圆台型夯锤的夯击效能总体好于圆柱型夯锤。随着夯次的增加两种类型夯锤沉降量均有逐步减小的变化规律,且相同夯次下,圆柱型夯锤的平均夯沉率要好于圆台型夯锤。随着夯锤尺寸倍数的增加,其夯击效能也逐步提高,随着水流绕流作用影响的增加,其夯击效能递增幅度有所降低。
In this paper,hydraulic method is used to test and analyze the ramming efficiency of two typical underwater rammers,cylinder and round table.The results show that the impact efficiency of different points of different types of underwater rammers increases with the increase of ramming times,and at the same point,the impact efficiency of circular platform rammer is better than that of cylindrical rammer.With the increase of ramming times,the settlement of the two types of rammer decreases gradually,and under the same ramming times,the average ramming rate of cylindrical rammer is better than that of circular platform rammer.With the increase of the size multiple of the rammer,the ramming efficiency is gradually improved,with the increase of the influence of water flow around the flow,the increasing range of the ramming efficiency is reduced.
作者
李嘉兴
LI Jia-xing(Liaoning Provincial Chaoyang Hydrological Bureau,Chaoyang 122000,China)
出处
《黑龙江水利科技》
2022年第2期1-4,共4页
Heilongjiang Hydraulic Science and Technology
关键词
圆柱和圆台水下夯锤
水力学方法
夯击效能
试验分析
cylindrical and round table underwater rammer
hydraulic method
tamping effectiveness
test analysis
