基于GMS的石化园区地下水数值模拟研究

Research on groundwater numerical simulation in a petrochemical park based on GMS software

石油化工类项目在运行过程中产生的泄漏,会对周边的地下水造成污染。以湖南省丘陵地貌的某石化园区建设项目为例,利用GMS软件对园区苯罐区和有机物料罐区非正常工况和风险事故工况下污染物在地下水的运移情况进行模拟预测。结果表明,两种工况下均有部分污染物会移出厂界,风险事故工况下的污染物浓度明显高于非正常工况,导致泄漏点附近的地下水受到不同程度的影响。因此,必须采取严格的防渗措施,生产运行期也需定期监测并做好应急措施,最大程度地保护地下水。

Groundwater contamination from leakage pollution may occur during petrochemical operations.Taking the petrochemical park construction project in the hilly landforms of Hunan Province as an example,numerical simulations of groundwater flow were conducted using GMS software to predict the migration of pollutants in groundwater under abnormal conditions and risk accident scenarios in the benzene and organic material tank area of the park.The results indicate that certain pollutants may migrate beyond the plant boundary in both cases.There are more pollutants present in accidental situations than in abnormal settings,and this has varied effects on the groundwater around the leaky areas.Therefore,stringent procedures for stopping seepage should be put in place,together with routine inspections and emergency actions.