复合断面渠道水力最佳断面及实用经济断面设计

Design of optimal hydraulic section and economic practical section for compound canal

根据水力最佳断面基本概念,推求了复合断面渠道水力最佳断面及实用经济断面的计算公式。并通过算例比较证实,复合断面水力最佳断面的面积和水面宽度比梯形水力最佳断面的小。对于挖方渠道,具有开挖工程量小和水面蒸发量少的优点,便于生产实际中应用。

The computing formula of optimal hydraulic section and economic practical section are calculated based on the concept of optimal hydraulic section. It is shown that the optimal hydraulic section for compound canal has smaller section area and narrower breadth of water surface than trapezoidal canal by calculation and comparison. It is the merit of smaller excavation quantities and lesser water surface evaporation for the excavation canal. It can be applied to practice work.