Research on the Construction Technology of Shotcrete Support in Highway Tunnel Construction
In modern highway tunnel engineering,shotcrete has gradually become the mainstream form of initial support.The use of concrete surface layer to maintain the stability of tunnel sidewall structure and prevent safety ac-cidents such as deformation and instability of surrounding rock is of great significance for improving tunnel con-struction level and ensuring on-site production safety.This paper analyzes the main technical points of shotcrete support construction in highway tunnel engineering,elaborates on the operational methods of concrete preparation,tunnel sidewall treatment,concrete spraying,maintenance and acceptance,and proposes optimization control mea-sures for the shotcrete support construction stage,aiming to provide useful experience and reference for the specific application of shotcrete support construction technology in highway tunnel engineering in the future.