CAJ | 학술논문

在研究敦煌盆地水文地质条件的基础上,应用FEFLOW软件建立月牙泉地区浅层地下水三维不稳定流数值模型,重点分析人工回灌场(A场、C场)对月牙泉地区地下水系统的影响,探讨影响月牙泉湖水位动态的主要因素,预测最佳人工回灌方式.结果表明:区内水位的抬升和波动主要由渠系渗漏和C场注水引起;人工回灌并未宏观改变模拟区原有地下水渗流场补径排条件,只是局部促进或阻碍地下水径流;A场以回灌量2500 m 3/d为最优方案.
재연구돈황분지수문지질조건적기출상,응용FEFLOW연건건립월아천지구천층지하수삼유불은정류수치모형,중점분석인공회관장(A장、C장)대월아천지구지하수계통적영향,탐토영향월아천호수위동태적주요인소,예측최가인공회관방식.결과표명:구내수위적태승화파동주요유거계삼루화C장주수인기;인공회관병미굉관개변모의구원유지하수삼류장보경배조건,지시국부촉진혹조애지하수경류;A장이회관량2500 m 3/d위최우방안.
@@@@Based on analysis of the hydrogeological conditions of the Dunhuang Basin , a three-dimensional numerical model focusing on the shallow unsteady groundwater flow system was built for the Yueya Spring areas using the FEFLOW software.The impacts of artificial recharge (in areas A and C) on the groundwater system of the Yueya Spring were investigated.The main factors that may lead to significant changes in the water level of the Yueya Spring were summarized, and the optimal artificial recharge pattern was obtained with the prediction model . The numerical results show that the change of the water level in the study area mainly resulted from seepage of the Shashan Branch Canal and water injection in recharge area C;the artificial recharge only enhanced or retarded the local flow of groundwater, and did not have significant effects on the groundwater flow direction in the study area ;and an injection rate of 2500 m 3/d was the optimal scheme in recharge area A.