The book presents a comprehensive methodology for simulating groundwater flow into tunnels, emphasizing three key steps. It begins with developing a numerical model utilizing the equivalent porous media (EPM) approach for rock mass simulations. Next, it defines tunnel boundary conditions through the Drain package of MODFLOW. Finally, the text focuses on predicting inflow rates as the tunnel-boring machine (TBM) progresses, providing a detailed framework for understanding groundwater interactions in tunneling projects.
