摘要：The tunnel section of the highway tunnel is an important part of tunnel construction. Once accidents such as instability of the side slope and collapse of the palm face occur, it will affect the construction progress at a slight level, and will result in unpredictable economic losses and even casualties. Therefore, in the construction of highway tunnels, the opening section has always been taken as the key point of tunnel construction. Carrying out safety risk assessment on the construction stage of the tunnel section can discover the risks in time, so as to propose reasonable and feasible countermeasures to reduce the risks and reduce the consequences of the risks.
