【摘要】 本文运用非线性数学模型推导了最优衬砌梯形横断面，它是边坡ｍ＝３／３时的水力最优断面，在此基础上提出了几种田间梯形衬砌渠道纵横断面优化设计方法。更多还原

【Abstract】 This paper presents a method to determine the optimal cross section of a trapezoidal lined canal based on non linear mathematics model. Calculation results show that hydraulic cross section is best when side slope of the trapezoidal lined canal is 3/3 . On this conclusion, several optimal design methods of onfarm trapezoidal Lined Canal sections also are given in this paper.更多还原