Groundwater inflows into tunnels may constitute a potential hazard as well as an important factor controlling the rate of advancement in driving a tunnel. One of the major practical difficulties often associated with tunnel construction is related to groundwater. In addition, predictions of groundwater inflows are needed to design suitable drainage systems. On the other hand, drawdowns produced by tunnel construction may induce land subsidence, water table decline and environmental impacts on rivers and wetlands.
There are several analytical expressions in the literature to calculate water discharges into tunnels but a major development was presented recently by Perrochet and Dematteis (2007). The program TunFlow makes use of the abovementioned analytical expression to compute groundwater infiltration into tunnels and galleries. The program allows to account for an unlimited number of geological zones (heterogeneous system) and fully transient hydrogeological conditions (accounting for the velocity of tunnel advancement). TunFlow is easy to use and it is specially designed for evaluating the groundwater filtrations in scoping studies.
It is written in the programming language C#. All use of the software is at your own risk. Any questions concerning the installation or use of this software can be directed to email@example.com.
This software has been developed by Amphos 21:
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