Study On Influence Of The Artificial Wetland And Rubber Dam Constructed On Yiluo River With Groundwater

With the development of the city,the exploitation of groundwater in Luoyang continues to extend,it leads the groundwater level continuous to decline,the groundwater flow system has been changed.In order to improve the overexploitation of groundwater and the water quality in Luoyang,the constructed wetland and three rubber dams will be constructed on the Yiluo river.It will increase the amount of groundwater recharge and improve the regional ecological environment.In this study,the conceptual model,mathematical model and numerical model of groundwater flow system in the clip flood land between Yi River and Luo River are established with the existing geological,hydrogeological data and long-term observation data.The numerical model is used to calculate the influence of the groundwater level from the surface engineering on the Yi river,then simulation the influence of the groundwater flow system under the different water supply plans and the analysis of the water supply status to the Lijialou water source with the different project plans.Finally choose the best construction plan.The results of the analysis show that the construction of surface water projects has a significant recharge effect on groundwater.The groundwater level at the clip flood near the Yi River has risen significantly,and the maximum ascensional range has reached about 2m.Under current conditions,when the water level in the Lilou water source site is stable at 115 m,the amount of groundwater resources can be mined is 22.3×104 m3/d.After two years of the artificial wetland recharge project at the east of Erguang Expressway implement,The amount of resources that can be mined is 30.0×104 m3/d at the Lijialou water source,and the amount of replenishment is increased by 7.7×104 m3/d.Our study has important reference value for the construction of the constructed wetland,and provides a reference for the development of water resources in Luoyang.