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%。
Abstract
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 reflect the hydrodynamic pressure of complicated flow in the stilling basin well. Examples show that, in Ahai project’s X-typed flaring gate pier, the error between calculation value and test value of maximum impact pressure is less than -15.8%.
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
Key words
X-typed flaring gate pier /
stilling basin /
base /
impact pressure /
dimensional analysis /
empirical formula
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参考文献
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