Study on the response feathers between the inflow in Tongluoshan tunnel and the local precipitation
Based on the Morlet wavelet transformation,the multi-scale features between the water gushing in Tongluoshan tunnel and the local precipitation are analyzed.Through the integrated comparison,it is found that the reserves of groundwater in Tongluoshan area are very rich,and the inflow in the tunnel is lagged to the local precipitation with a time delay which is about 12.84 days.It is concluded that the precipitation is not the direct source of the tunnel inflow,but there is an indirect link between them,which means the tunnel inflow is indirectly affected by the precipitation.The results are in accord with the field situation,which could offer the scientific basis to the management of the prevention and drainage of inflow in the tunnel and give the reference to the similar tunnel engineering.
inflow in tunnelprecipitationresponsewavelet transformationtime delay
NETL
NSTL
万方数据
维普
