A Comprehensive Review on Seismic Resistance and Damping of Prestressed Lining in Water Conveyance Tunnels

Abstract

Prestressed concrete linings enhance the crack resistance and durability of lining structures by embedding prestressed tendons in concrete linings, applying pretension, and locking them with anchorages to make the linings pre-compressed, thus counteracting tensile stresses induced by external loads. This makes them the preferred lining form for large-section and high-head water conveyance tunnels. However, in seismic-prone areas, such linings are vulnerable to seismic-induced structural damage. This paper systematically reviews the research achievements in seismic resistance and shock absorption, covering aspects of seismic performance analysis, application of shock absorption technologies, numerical simulation, and experimental studies, and deeply discusses the existing problems in current research. The study shows that the application of shock absorption materials, design of shock absorption structures, and passive control shock absorption technologies can effectively reduce the damage to the linings of water conveyance tunnels during earthquakes.