Study On The Climax Flux Between City Drainage And City Waterlogged Field Drainage In Xi'an

The city rain flux is the design foundation of city rain drainage pipeline, the standard according to outdoors drainage criterion (GBJ14-87). The city flood flux is the design foundation of city river, the standard according to flood control criterion (GB50201-94). Because the differences in re-appears period concept, the design standard and the calculation method, The climax flux are also deferent accord to the city drainage calculation method and the city flood control calculation method in xi'an. That lead to some engineers lack the foundations in the course of design, so it is necessary to proceed a research on city drainage and city flood control.Base on the native weather and geography in xi'an, the appropriate parameters are chosen, city drainage calculation formula and city flood control calculation formula in xi'an are also enduced. Through the relation research between the city drainage and the city control flood, The main conclusions that are drawn in this thesis are as follows:(1)Because the difference in the choice samples between the city drainage and the city flood control, the city drainage re-appears period concept and the city flood control re-appears period concept are also different. As the re-appears period is 0.5～ 5a, the city control flood choice samples are obviously less than the city drainage choice samples; only as the re-appears period is more than 10a, the city control flood...