数值模拟法在隧道涌水量预测中的应用

隧道涌水量的预测是规划公路、铁路线路很重要的一个环节。随着隧道设计水平、施工技术的提高以及施工机械的进步，采用长大隧道乃至特长大埋深越岭隧道的设计方案越来越多，使隧道涌水量的预测问题变得日益突出和迫切需要解决。以某实际隧道工程为例，提出了运用水文地质数值模拟法计算隧道涌水量的新方法。将该地区的水文地质特征参数与现场监测数据选定后，可得到一种适用于该地区的水文地质地下水模型。通过与传统方法的预测结果比较后，证明了该方法的合理性。

Application of numerical simulation in prediction of water inrush amount in tunnel

The prediction of water inrush in tunnel is important in the planning and construction of road, railway. With the improvement of tunnel design level, the construction technology and the progress of construction machinery, there are more and more schemes of long and large tunnel or extra-long and deep buried tunnel passing through mountain, so the prediction of water inrush becomes increasingly prominent. Taking a practical tunnel as a case, a new calculation method of water inrush amount in tunnel by hydrogeological numerical simulation was put forward. After the determination of the hydrogeological parameters and in-situ monitoring data in the calculation area, a hydrogeological underground water model suitable for this area was obtained. Compared with the results of the traditional method, it is shown that the suggested method is reasonable.