广州轨道交通工程车站基坑涌水量预测方法的比较研究

Study on the Forecasting Methods of Flowing Yield in Foundation Pit Based on the Deport of Guangzhou Metro

以广州市轨道交通工程六号线一德路站为例,采用不同模型计算了基坑的涌水量,并讨论了导致各预测结果差异性的原因,即不同的边界条件导致涌水量预测的差异。因此,在预测基坑涌水量时必须充分认识所研究地区的工程地质、水文地质条件,结合地区经验合理选择模型边界,才能提高预测的准确性,为工程的施工提供依据。

Based on the forecast of the foundation pit discharge for Yide station of Guangzhou Metro, the discharge of foundation pit is forecasted by different model. The reasons that caused difference forecasting results are discussed, and that is because of different boundary conditions. According to the analysis on the geological condition and hydrogeological condition, and to the reasonable model boundary conditions by combining the region experience, the foundation pit discharge can be accurately forecasted. It can offer credible warranty for engineering.