基于数值模拟的浅层地下水资源论证

Assessment of Shallow groundwater Resources Based on Numerical Simulation

运用数值模拟软件对户县涝渭水源地潜水含水层进行分段模拟开采,并结合分段比选法在设计要求下对布井方案进行分段比选,确定整个水源地的最优布井方案。通过对水源地整体模拟开采,计算得出潜水含水层可开采量为76 800 m3/d,且最大降深未超过7 m,水源地地下水资源取得了较好的论证。通过实际应用看出:数值模拟方法在计算地下水可开采量方面具有易于计算、精度较高的特点,可提高小区域浅层地下水资源论证的质量。

Using numerical simulation software to segmentedlysimulate the mining of unconfined aquifer in Laowei water source region, and combined with the segmented comparison method to select the pattern of well segmentedly, eventually draw the optional well pattern of the whole water source region. Through the simulation of overall water source region mining, exploitableyield of unconfined aquifer is calculated to be 76800m^3/d, and the maximum drawdown is less than 7.0m, the groundwater resources are assessed well. Through the practical application, it shows that numerical method has advantages of easy calculation and high precision in groundwater exploitable？ yield calculation, the quality of assessment of shallow groundwater resources in small area can be improved.