Alignment jig for partially buried road tunnel sections has base attached to one section and engagement head to contact opposing section

摘要

The alignment jig for partially buried road tunnel sections (3,3a) adjusts their relative position to allow alignment for insertion of connectors (50,51). The jig is movably mounted on one tunnel section to be positioned and engages the second section. The jig has a base (16) with fixings (21) to the section and adjustable engagement head (17) to engage the opposing tunnel section.