公路桥涵雨洪设计流量计算,在50年代主要是借鉴苏联的经验。一直沿用“根据过去,推算将来”。从对现实发生的洪水与降雨的观测、分析中,找规律,用以推算将来可能发生的指定频率的设计值。因此对已有资料的分析研究至关重要。我国在50年代中后期,建立了不少水文站点,至今已积累了相当数量的观测资料。可惜这些资料在生产实践中还未被充分利用,如迳流计算,我们还在用30年前编的迳流厚度。雨洪设计流量计算,是公路、铁路、水电部门都要遇到的问题,过去各家自搞一 The calculation of the design flow of rainwater and culverts for highway bridges and culverts is mainly based on the experience of the Soviet Union in the 1950s. Has been followed by “based on the past, projections of the future.” From the observation and analysis of floods and rainfalls that have taken place in the real world, we find laws that can be used to calculate the design values ​​of specified frequencies that may occur in the future. Therefore, the analysis of existing data is crucial. In the middle and late 1950s, our country has set up a number of hydrological stations and so far a considerable amount of observation data has been accumulated. Unfortunately, these data have not yet been fully utilized in production practices. For example, in the calculation of inflows, we are still using the inflow thickness compiled 30 years ago. Rain flood design flow calculation, is the highway, railway, hydropower departments have to encounter problems in the past,