CAJ | 학술논문

人工回灌是提高水资源利用水平的重要工程措施。深入研究渗滤池回灌过程机理,基于 H ydrus-2 D,结合具体渗滤池回灌算例,建立渗滤池回灌的二维饱和-非饱和渗流数值模型。模拟结果表明：回灌水入渗形成的“湿润峰”逐渐向饱和带移动,同时饱和带的浸润线逐渐上升,形成不断扩大的饱和区,直到形成一个连续的饱和带。回灌水出流速率经过了迅速增大到一峰值后快速减小,然后又缓慢变小的过程,回灌水入渗速率随时间变化的这一特征与 Green-Ampt入渗模型的结论是一致的。
인공회관시제고수자원이용수평적중요공정조시。심입연구삼려지회관과정궤리,기우 H ydrus-2 D,결합구체삼려지회관산례,건립삼려지회관적이유포화-비포화삼류수치모형。모의결과표명：회관수입삼형성적“습윤봉”축점향포화대이동,동시포화대적침윤선축점상승,형성불단확대적포화구,직도형성일개련속적포화대。회관수출류속솔경과료신속증대도일봉치후쾌속감소,연후우완만변소적과정,회관수입삼속솔수시간변화적저일특정여 Green-Ampt입삼모형적결론시일치적。
Artificial groundwater recharge is an important engineering measure to improve the utilization level of water resources.In order to deeply research the mechanism of the infiltration,a two-dimension saturated-unsaturated seepage numerical model of infiltration pond recharging was established based on Hydrus-2D.The mechanism of the infiltration rate decrease and the saturated-unsaturated change of the “Moist District”were analyzed according to the numerical simu-lation.The simulation results showed that the “wetting front”moved to the saturated zone while the saturation line? rose gradually,the recharge pool became a continuously saturated zone finally.The infiltration rate decreased to 6 7 8 5 .5 cm2/h rapidly after1 hour from initial 1 8 4 2 1 cm2/h,then decreased slowly,after 2 4 hours infiltration,the infiltration rate keep stable basically.