摘要
本文应用工程经济学、水力学及地下工程理论，并根据水工隧洞设计规范和工程实践，对半园拱直墙式无压发电引水隧洞纵坡和横断面形状、尺寸同时优化，提出了切实可行的计算方法和简明的数学模型．该方法计算速度快，成果可靠，使用方便，该成果可供水工隧洞设计使用，具有显著的经济效果。
This article uses the theory of enginering economy.hydraulics and underground engineering theory and according to hydraulic tunnel design standard and engineering practice, to present a practical calculation method and a simple mathematical model for optimaly designs profile grade of non-pressure power water diverting tunnel with semi-circular arch-vertical wall mode,the design and size of transvere section at the sametime.
