Home – Home – Jornals – Fundamental and applied issues of mining 2019 number 1

A new analytical method is proposed for seismic analysis of multilayer linings in shallow tunnels. The method allows taking into account the influence of seismic waves reflected from the Earth's surface and Rayleigh waves. The most hazardous stress state that may take place in radial sections of the lining during the earthquake of given intensity is determined. As an example, the seismic analysis is performed for the lining of a tunnel located in a seismically active area. The envelope diagrams of maximal values of tensile and compressive stresses along internal outline of the lining cross section and corresponding diagrams of longitudinal forces and bending moments in the lining are constructed. The dependences of the maximum stresses arising in the lining during the earthquake on the tunnel depth are obtained and analyzed.