基于GMS的模拟结果绘制岩溶区地下水位等值线图

The Preparation of Contour Maps of Groundwater Table in Karst Based on GMS

研究区内岩溶地下水的运动既受区域性水势场的控制,也受岩溶管道分布的影响,为了正确反映在上述2种因素共同作用下地下水的运动轨迹,使用耦合了达西流与非达西流于一体的GMS软件包进行数值模拟,并根据模拟结果分析等水位线图。结果表明,比较丰水期与枯水期的等水位线图后发现,研究区地下水在丰水期的运动明显受到岩溶管道分布的影响,而在枯水期的运动则不受岩溶管道的影响,分析认为这是由于在枯水期地下水位低于岩溶管道底板的原故。

In the study area,the groundwater movement is influenced by both regional water potential field and the distribution of karst pipelines.In order to reveal the properties of groundwater movement under the joint action of these two factors,a kind of GMS coupling with Darcy flow and non-Darcy flow was applied to simulate the karst system.Contour maps of groundwater table were got according to the numerical simulation results.It was found that： the groundwater flow was significantly affected by karst conduits in rainy season and unaffected in dry seasons according to contour maps of water table.This implied that the water levels lowed down the motherboard in karst tubes in dry seasons.