某厂区防渗工程地下水数值模拟

摘要

根据某厂区的水文地质条件,在建立水文地质数学模型的基础上,运用有限差分数值计算软件对该厂区地下水的渗流规律进行数值分析,并运用其跟踪模拟子模块对该厂区地下水的水质点进行了粒子示踪模拟。通过研究区埋设的孔隙水压力计测试成果的验证,该模型模拟结果与厂区地下水渗流场的实际情况较为吻合,即厂区地下水会从西北部地区向西南部和南部的梅坝溪及东北部的下道湖溪渗流。模型可用于该厂区地下水动态模拟和预测,及污染物运移途径研究,可以为厂区的防渗工程提供可靠依据。%According to the hydrogeological conditions of a mining factory,and on the basis of the establishment of hydrogeological mathematical model,the numerical analysis model of the groundwater of the area is established by using the finite difference software for numerical calculation,and the sub-module is also used to trace and simulate the groundwater particles.The model is verified by the relevant data recorded by the pore water pressure meter.The simulation results from the model are in good agreement with the actual situation,that is,the groundwater of this mining factory would flow from the northwest area to Meiba Creek in the south and southwest area,and to Xiadaohu Creek in the northeast area.The model could be used for the dynamic simulation and forecasting of the groundwater in the factory,and for the research of the transport pathway of pollutants,at the same time,it could also be used to provide reliable bases for the seepage control project in the factory.