Lid member mounting base member

Abstract

This article relates to a mounting base member for a storage space, which is attached to the lower end of the side wall of a tunnel along the longitudinal direction of the tunnel. As shown in the reference diagram, a storage space is provided at the lower end of the arched side wall inside the tunnel. Power cables and other components are stored in this storage space. The storage space is formed by a forming wall for the storage space, which is set at a predetermined distance from the tunnel side wall, and a mounting base for the storage space lid is provided at a position on the tunnel side wall at approximately the same height as the upper end of the forming wall. This mounting base for the storage space lid is formed by connecting mounting base members of a predetermined length in the longitudinal direction of the tunnel. Multiple lid members are then placed on the mounting base and the upper end of the forming wall to seal the storage space. The area above the storage space lid members is a tunnel passageway.

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