海底隧道涌水量预测及应用研究

Studies on Forecasting of Water Flow in Subsea Tunnel and Its Application

涌水量预测是海底隧道防排水设计和施工措施制定的依据.文中采用半无限空间的水文地质计算模型,结合某海底隧道具体水文地质和工程地质情况,选择9个典型剖面,分别采用经验解析法和数值模拟法计算隧道涌水量.对两种方法的适用性进行了评价比较,并阐述了适用条件.

It is the key of making tunnel construction management plan and drainage design to predict accurately the seepage water volume in subsea tunnel. According to the specific geological and engineering conditions of one subsea tunnel, the seepage water volumes of its nine typical profiles are computed respectively by analytical method and numerical simulation utilizing the hydro geological model of half infinite space. Based on the analysis and comparison of results by two methods, their applicable work conditions are summarized. Some beneficial conclusions are summarized which can be used for making tunnel construction management plan, choosing the base-plate thread position and drainage design.