| Yuka valley diving is the main object of this study, Yuka river source is groundwaterrecharge, due to the southern Luliangshan mountain and eastern Dayu mountain uplift,groundwater flow in both directions to Crossroads and Dayu mountain，eventually excretedto Yuka downstream and Dachaidan lake.Full analysis of the topography, geological structure and hydrogeological conditions ofthe Yuka Valley area, according to the study area rich in water level is divided into threewater-rich area.Establish the Yuka downstation and the middlestation correlation，introduction of annualaverage flow Yuka middle station, split the escape of groundwater flow by using the baseamount segmentation method, will build mathematical expressions on the relationship betweenriver flows and Yuka river infiltration, you can restore the surface runoff about Yuka upstationflow in forty years (1956-1995) of data. Restored Yuka upstation flow, calculated Yuka riveraverage annual runoff of3.648m3/s.Using runoff volume cross-section method, The sum of recharge method and excretionsummation method to identify Yuqia valley groundwater recharge resource is20.785×104m3/d. |
PDF Full Text Request