design flood discharge

The method was adapt broad crested weir theory derivation to calculation flood rate of discharge and conjecture design rate of discharge through field investigate information of bridge.

该计算方法是通过实地调查桥前水深等资料，采用严密的宽顶堰理论推导，求得洪水流量，进而推求设计流量。

It introduces a diagram method for design of flood discharge trench utility section, which is more universal and vivid and can attain the goal of quick& optimized design.

介绍用图解法设计排洪沟的实用经济断面，此法可达到快速、优化设计的目的，并且具有通用性好，形象直观的特点。

It is a question having research value and economy content to avoid free surface-pressure flow in the high-speed pressure flood discharge-pipe design.

在坡度较陡且为高速水流的有压泄洪管道设计中如何避免管道内明满流的出现，是一个极具有科学研究价值和经济意义的课题。