과천터널은 서울지하철 4호선 연장구간으로서 사당에서 금정역까지를 말한다. 이러한 장대터널 전 구간에 대해서 새로운 터널유지관리시스템을 적용하기에는 한계가 있어 약 40m 구간의 박스터널 구간을 선정하여 새로운 터널유지관리시스템을 적용하였다.
The maintenance and management of each tunnel has been individually performed in depending on service, management agency, and tunnel size. The maintenance and management system for the existing tunnel consists of simple tunnel card and the computerization of basic tunnel data, now. There is not the systemic maintenance and management system for tunnel. Therefore, it has been impossible the systemic maintenance and management for tunnel due to loss of data obtained from each step, such as, plan, design, construction, or maintenance, with time. The objective of this study is to build the database system in combing the results of tunnel scanning with all data obtained from plan, design, construction, or maintenance step.