兰州市排洪沟洪道流量复核及水文计算分析

Recheck and Hydrologic Calculation of Flood Flow in Drainage Ditch in Lanzhou

通过核算洪道的100 a一遇流量,采用同类洪道的洪水频率求得水文计算所需相关参数,核算洪道的年最大洪峰流量并复核洪道断面的全断面设防标准,优化洪道断面。

The article uses the flood frequency of the same flood ditch to seek the relevant parameters required for the hydrological calculation by checking the flow of flood ditch once in a century,checks the annual maximum peak flow of flood ditch and rechecks the full sectional defense standard of flood ditch and optimizes the section of flood ditch.