标准门洞形过水隧洞正常水深的计算

Calculation of Normal Water Depth in the Standard Doorway Type Water Expressway Tunnel

针对目前图表法、试算法及近似法存在的问题,采用优化拟合的方法,以标准剩余差最小为目标函数,在工程适用参数范围内,经拟合分析及计算获得了表达形式更加简单直观、常数及系数项数字位数最少、便于记忆及实际应用、计算精度满足设计要求(最大误差为0.685%)的近似公式,具有一定的实用意义。

The standard form water section water depth to finish beyond normal calculation equation and not through the analytic method in solution directly.According to the present law,try algorithm and chart approximate method,the existing problems of the optimum fitting method,with the remaining poor standard minimum for target function,in engineering applicable range parameter,the fitting calculation and analysis for the more simple,intuitive expressions and a constant coefficient at least,digital digit is easy to remember and practical application,the calculation accuracy and meet the design requirements（maximum error is 0.685%） the approximate formula,has certain practical significance.