摘要
为了得到X型宽尾墩消力池底板的冲击压强的直接计算公式,分析了对冲击压强影响较大的几个因素,利用量纲分析对模型试验的大量数据进行了拟合,总结出一个能较好地反映冲击压强规律的经验公式。误差分析表明滚弄、鲁地拉、索风营、沙陀的冲击压强最大相对误差不超过16.3%,能较好地反映X型宽尾墩消力池内复杂水流的冲击压强。实例验证显示,阿海工程X型宽尾墩最大冲击压强计算值与实测值误差<-15.8%。
In order to get the direct calculation formula for impact pressure on the base of X-shaped flaring gate pier, we analyzed and obtained a few influence factors on impact pressure. Through fitting a lot of data of model test with dimensional analysis, an empirical formula well reflecting the law of impact pressure was suggested. At the same time, several projects such as Gunnong, Ludila, Suofengying and Shatuo were studied .Error analysis shows that maximum relative error of impact pressure for the four projects is not more than 16.3%, which can well reflect the hydrodynamic pressure of complicated flow in the stilling basin. Examples show that, in Ahai project＇ s X-typed flaring gate pier, the error between calculation value -15.8%. and test value of maximum impact pressure is less than
出处
《长江科学院院报》
CSCD
北大核心
2015年第11期30-33,共4页
Journal of Changjiang River Scientific Research Institute
关键词
X型宽尾墩
消力池
底板
冲击压强
量纲分析
经验公式
X-typed flaring gate pier
stilling basin
base
impact pressure
dimensional analysis
empirical formula
