摘要
桩承台桥墩基础在桥梁建设中应用较多,结构形式目前得到新拓展。上部承台在水中不同位置对局部冲刷的影响程度是确定承台高程时的主要参考依据。采用大型宽水槽,对大型梅花形桩群和规则桩群桩承台不同入水深度引起的局部冲刷进行试验研究,分析桩承台的冲刷特征,得到了导致底部床面发生最大、最小冲深时水中的承台位置。
The pilescushion cap bases are used wildly in the bridge construction. Theirs form are new widening up to now. It＇s main basis to make sure the elevation of the pilescushion cap about the influence degree on local scour for the different submersed elevation of the cushion cap. Through testing in a largescale flume, experimental study on the influence of differ ent submersed elevations about a quincunx pile group and a regular pile group is carried. Through analyzing the scour charac teristics of pilescushion cap, the caps＇ locations which cause the maximal and minimal local scour in riverbed bottom are achieved.
出处
《中国港湾建设》
2013年第2期44-49,共6页
China Harbour Engineering
关键词
桩承台
入水深度
局部冲刷
影响
piles-cushion cap
submersed-elevation
local scour
influence
