Analytical　solutions　can　quickly　and　simply　evaluate　stresses　and　displacements　in　tunnels　and　are　widely　adopted　in　the　preliminary　design　phase　of　tunnels.　Tunnels　must　be　able　to　withstand　static　loading　and　seismic　loading.　This　paper　proposes　new　analytical　solutions　for　the　stresses　and　displacements　of　tunnels　under　static　and　seismic　loading.　The　tunnel　lining　is　treated　as　a　thick-walled　cylinder.　Moreover,　the　contact　stiffness　coefficient　k0　and　the　stress　release　coefficient　&　eta;0　are　introduced　to　consider　the　arbitrary　contact　conditions　at　the　ground-lining　interface　and　the　amount　of　excavation　unloading.　The　new　analytical　solutions　are　verified　by　comparison　with　finite　element　analysis　results.　The　results　demonstrate　the　accuracy　and　applicability　of　the　proposed　analytical　solutions.　In　addition,　parametric　analyses　are　conducted　to　explore　the　effects　of　the　stress　release　coefficient　&　eta;0　and　stiffness　coefficient　k0　at　the　ground-lining　interface,　as　well　as　the　incident　angle　&　alpha;　of　shear　waves.　The　analysis　results　indicate　that　the　proposed　analytical　solutions　offer　satisfactory　performance　and　can　be　applied　as　an　effective　tool　for　preliminary　tunnel　design.