| Literature | Formula | Description |
| Harr [1] | | Initial water level, deep tunnels, homogeneous, isotropic, and semi-infinite aquifer | Goodman [3] | | Initial water level, deep tunnels, homogeneous, isotropic, and semi-infinite aquifer | Zhang and Franklin [4] | | Initial water level, varying hydraulic conductivity of medium in jointed rock deep tunnels | Kolymbas and Wagner [2, 7] | | Initial water level, for both deep and shallow tunnels | El Tani [5] | | Initial water level, tunnels of circular, elliptical, or square cross sections, nonhomogeneous aquifer | Karlsrud (2001) | | Initial water level, tunnel, homogeneous, isotropic, and semi-infinite aquifer | Fernandez and Moon [12] | (shallow tunnel) | Lowered water level, using permeability reduction of medium, for both deep and shallow tunnels | (deep tunnel) |
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