Tunnels may suffer severe damage when passing through an active fault in high-intensity earthquake zones. The present study aims to investigate the performance of an isolation layer composed of a rubber-sand mixture. an emerging trend in low-cost seismic mitigation studies. Based on the Ngong tunnel in the Nairobi-Malaba Railroad in Kenya. https://www.nacrack.com/great-pick-Refurbished-Sawgrass-Virtuoso-SG500-Complete-Sublijet-Sublimation-Printer-Kit-flash-buy/