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在对工作区进行水文地质调查和水文实验的基础上,运用FEFLOW软件建立三维数值模型,计算出相关参数结果,运用ARCGIS软件进行空间分析,可以得到地下洞库在施工和运营过程中的水位变化、涌水量大小、水位降深漏斗大小和范围等数值,为地下水封洞库的建设提供依据,保证施工和运营过程中的安全性和经济性。以烟台某地下水封洞库为例,利用拟合模型,对施工期及运营期的涌水量以及相应水幕补水量进行模拟预测:施工期各阶段稳定涌水量为72.3~287.6 m3/d,水幕补水量为45.5~232.7m3/d;运营期稳定涌水量为323.5m3/d,水幕补水量稳定值约为254m3/d(。表3,图6,参12)
Based on the hydrogeological survey and hydrological experiment in the work area, the FEFLOW software is used to establish the three-dimensional numerical model to calculate the related parameters. The spatial analysis of the underground cavern can be made by using ARCGIS software to get the water level change during construction and operation , The amount of water inflow, the size and scope of the funnel at the water level, etc., provide the basis for the construction of the groundwater caverns and ensure the safety and economy during construction and operation. Taking a groundwater sealing cavern in Yantai as an example, the fitting model was used to simulate and predict the water inflow and the corresponding water curtain inflow during the construction and operation phases. The stable water inflow during each phase of construction was 72.3-2870.6 m3 / d, The curtain replenishment volume is 45.5 ~ 232.7m3 / d; during the operation period, the stable water inflow is 323.5m3 / d, and the water curtain water replenishment volume is stable at about 254m3 / d (Table 3, Figure 6, Reference 12)