# Research on an Index System for the Earthquake Disaster Resistance Capability of Highway Tunnels
## 4 Seismic Capability Index System of Highway Tunnels
### Construction of the Index System  
Based on the principle of establishing the index system, combined with the analysis of the evaluation indicators of the earthquake disaster resistance capability of highway tunnels, the evaluation index system is constructed by using hierarchy theory in system science, and a four-level comprehensive evaluation index system is proposed, including the target layer (seismic resistance of highway tunnels [U]), the criterion layer (engineering geological factors [U\({}_{1}\)], tunnel structural factors [U\({}_{2}\)], operation and management factors [U\({}_{3}\)]), 12 indicator layers and 35 specific indicator layers. The evaluation index system of the earthquake disaster resistance capacity of highway tunnels is shown in Table 4.  
\begin{table}
\begin{tabular}{c c c c} \hline \hline
**Operation Management Factor Index** & **Relevant Specifications and Engineering Experience** & **Relevant Regulations or Experience** & **Specific Indicators** \\ \hline \hline \multirow{8}{*}{Technical conditions tunnel structure} & \multirow{4}{*}{\begin{tabular}{c} “Technical Specifications for Maintenance of Highway Tunnel” \\ (JTG H12-2015) [55] \\ \end{tabular} } & (1) & The technical condition assessment of civil engineering structure should be based on the regular inspection data, considering the influence of tunnel portal, structure, pavement and ancillary facilities, etc., to determine the technical condition level of the tunnel. \\ \cline{1-1}  & & (2) & In the regular inspection, regular inspection, emergency inspection, special inspection, the specification of the hole, hole door, lining, pavement and other structural \\ \cline{1-1}  & & & facilities inspection content made specific requirements. \\ \hline \hline \multirow{8}{*}{Emergency management level} & \multirow{4}{*}{\begin{tabular}{c} “Technical Specifications for Maintenance of Highway Tunnel” \\ (JTG H12-2015) \\ \end{tabular} } & (1) & The specification stipulates the safety management of emergencies and formulates the disposal principles of tunnel emergencies. When the earthquake disaster occurs, personnel control measures should be taken immediately to avoid casualties, establish an earthquake emergency plan and quickly restore the tunnel function after the disaster. \\ \cline{1-1}  & & (2) & The tunnel management and maintenance unit should formulate emergency plans for emergencies and carry out plan exercises. \\ \cline{1-1}  & & & Special emergency plans should be formulated for extralong tunnels and long tunnels, and general emergency plans can be formulated for other tunnels. \\ \hline \hline \multirow{8}{*}{Maintenance management level} & \multirow{4}{*}{\
\begin{tabular}{c} “Technical Specifications for Maintenance of Highway Tunnel” \\ (JTG H12-2015) \\ \end{tabular} } &
\begin{tabular}{c} During the operation of the civil structure, the daily inspection of the portal, lining ceiling and other structures is carried out, and the periodic inspection cycle is divided according to the structural grade. After the inspection is completed, the defective parts are repaired in time and recorded. \\ \cline{1-1}  & & The level of tunnel maintenance management is reflected in the management system. An excellent maintenance management system should have the characteristics of advanced maintenance concept, sufficient maintenance talents, perfect maintenance system and real-time maintenance work. \\ \hline \hline \end{tabular}
\end{table}
Table 3: Index analysis of the operation management factors.