Research conclusions:The tunnel construction and natural environment can be considered as a contradicting and affecting each other. When the tunnel construction affects the karst development and the groundwater seriously, the coupling effectof the stress field and seepage fieldwill cause the large plastic deformation ofwall rock, resulting in the waterbursting andmud bursting. After completion of tunnel construction, the long-term drainage of groundwaterwill change the originalbalance between the stress field and the seepage field, resulting in the surfacewaterdrying up, the surface subsiding andworsening the ecological environmen.t