基于新安江模型的考虑超渗产流及塘坝调蓄的洪水过程模拟

发布时间：2018-05-26 20:07

本文选题：塘坝调蓄 + 超渗产流　；参考：《水电能源科学》2017年02期

【摘要】：针对山丘区众多小型水库、塘坝的兴利库容大小不一致,先蓄满的水库塘坝率先溢流,全部水库塘坝蓄满后全部溢流的现象,提出了一种改进模型,即在新安江模型中嵌入超渗产流和塘坝调蓄模块,建立了同时考虑超渗产流和塘坝调蓄影响的流域水文模型,选用大汶河黄前水库流域大水年份实测水文资料进行率定和验证,并与未考虑超渗产流影响和塘坝调蓄影响的计算结果进行了对比分析。结果表明,当不考虑超渗产流影响时,模拟的洪峰偏低;当不考虑塘坝调蓄影响时,模拟的洪峰偏高、峰现时间提前。可见在新安江模型中同时考虑超渗产流和塘坝调蓄的作用能有效提高半湿润区流域洪水过程模拟的精度。
[Abstract]:In view of the phenomenon that there are many small reservoirs in hilly area, the reservoir capacity is not consistent, the first one is overflowing, the whole reservoir is filled and then the whole reservoir is overflowing, an improved model is put forward. That is to say, the superosmotic runoff generation module and the Tangba regulation and storage module are embedded in the Xinanjiang model, and a watershed hydrological model considering the effects of the superosmotic flow and the Tangba regulation and storage is established. The hydrological data measured in the Yellow River front reservoir basin of the Davin River are selected for the rate determination and verification. The results are compared with the calculation results without considering the effect of excess seepage and the effect of the regulation and storage of the dam. The results show that the simulated Hong Feng is on the low side when the effect of excess seepage is not considered, and the simulated Hong Feng is higher and the peak time is earlier when the effect of the regulation and storage of the dam is not considered. It can be seen that considering the effects of superosmotic runoff generation and Tangba regulation in Xinanjiang model can effectively improve the accuracy of flood process simulation in semi-humid watershed.
【作者单位】：河海大学水文水资源学院;
【基金】：国家重点研发计划课题(2016YFC0400909) 国家自然科学基金项目(41371047)
【分类号】：TV122

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