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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。
Aiming at the phenomenon that many small reservoirs in the hill area are different in size and size, the overflowing capacity of ponds and reservoirs which overflowed first and all reservoirs overflow completely after the full storage of ponds, an improved model is proposed, that is, in Xin’anjiang model , A hypersurfactant flow and dam storage module are embedded in the basin. A hydrological model of the basin, which considers both the transgression flow and the regulation of pond dam, is established. The measured hydrological data of the Huangwen reservoir in Dawenhe reservoir are calibrated and verified. The results were compared with the results without considering the influence of the hyper-seepage and the impact of the dam regulation. The results show that the simulated flood peak is low when the effect of hyper-seepage is not considered. When the effect of reservoir regulation and regulation is not considered, the simulated flood peak is high and the peak time is earlier. It can be seen that the simultaneous calculation of the effects of hyper-effluent flow and dam storage in Xin’anjiang model can effectively improve the simulation accuracy of the flood process in the semi-humid area.