Abstract
Tunnel is constructed in nuclear industry for multiple functions, such as for cooling water of nuclear power plants, spent fuel storage and so on. The structural property of the tunnel is closely related to the property of surrounding rock mass. Rock mass generally possesses the obvious anisotropy due to structural planes and the directional alignment of soil particles in rock mass formation. Based on the conformal mapping and complex variable method, the displacement analysis for the non-circular tunnel excavated in anisotropic rock mass is derived. The displacement solution on excavation boundary of tunnel is acquired, where the tunnel is in inclined sedimentary rock mass. Compared with the numerical solution, the results are in good agreement. Due to the anisotropy of the rock mass, the deformation of tunnel is asymmetric. Considering different in-situ stresses and elastic moduli along orthogonal directions, the displacements of tunnel are acquired and discussed.
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