应用数值法评价原油储罐项目对地下水影响

Applicationof Numerical Method to Evaluate the Impact of Construction Project on Groundwater

通过对大港油田某站场建设项目区域水文地质条件模型概化,建立地下水数值模型。对模型识别与验证,并选取石油类作为预测特征污染因子,应用数值法对石油类污染物在潜水层运移情况进行了预测和评价。预测结果表明,在30d时间内,石油类没有发生明显运移,污染源得到有效控制后,模型显示污染物浓度大幅下降,在第1 000d时,污染物浓度降低至0.04mg/L,几乎接近于零,污染物对周边地下水几乎无影响。

Through the generalization of regional hydrogeological conditions for the construction of the south third station project,a groundwater numerical model was established.The model is identified and verified,and numerical methods were used to predict and evaluate the migration of petroleum pollutants in the groundwater layer.In the 30-day period,no significant migration of petroleum occurred.After the pollution source was effectively controlled,the model showed that the concentration of pollutants dropped drastically.At 1 000 days,the pollutant concentration value became smaller 0.04 mg/L,almost to zero,and the pollutants did not affect surrounding groundwater.