摘要
由于门洞型过水断面的水力计算涉及超越方程的求解问题,因而使目前的求解方法仅限于图表法或试算法,既不便于实际工作又很难保证成果精度。通过对原计算函数的优化拟合,提出了标准门洞型过水断面水力计算的简捷表达式,避免了目前常规方法获解所存在的问题,在实用范围内,成果的最大误差仅为0.48%。
Because hydraulic calculation of the cross section with water of doorway type deals with seeking the solution to an equation,the present method only limits graphic method or account method that is not only easy to actual work but also difficult to guarantee the precision of results.According to good imitation of original account function,this paper presents the simple expression of hydraulic calculation method of the section with water of standard doorway type and avoids seeking the exiting problems with ordinary method at present.The maximum error of the results are only 0.48% in the practices.
出处
《黑龙江水专学报》
2005年第2期18-20,共3页
Journal of Heilongjiang Hydraulic Engineering College
关键词
门洞型断面
水力计算
优化
拟合
简化算法
the cross section of doorway type tunnel
hydraulic calcuation
optimum
imitation
simple account method
