摘要
根据圣维南方程组 ,假定河底为水平 ,略去摩阻项 ,推出了在坝体瞬时全溃情况下 ,计算溃坝最大流量的普遍公式 .还指出了自 196 2年以来 ,国内广泛流行的推求溃坝最大流量的波堰流交会法中计算负波流量的公式的错误之处 根据理论推导 ,还发现所纠正的错误公式 。
According to St. Venant equation set, assuming the river bed is horizontal and rounding off friction item, the paper derives a general formula used to calculate the maximum dam-break flow in the case of instantaneous total dam-break, and also points out the errors of the formula used to calculate negative wave flow in wave weir intersection method to ascertain the maximum dam-break flow, prevailing throughout the country since 1962. In terms of theoretical derivation, we find that the corrected mistaken formula, in essence, a special example of derived general formulas.
出处
《华北水利水电学院学报》
2001年第3期23-30,共8页
North China Institute of Water Conservancy and Hydroelectric Power
关键词
水库溃坝
大流量
圣维南方程
波堰流交会法
溃坝洪水
reservoir dam-break
maximum dam-break flow
St. Venant equations
wave weir intersection method
