Road construction

摘要

A supporting portion of a roadway is composed of a metallic cellular sandwich structure placed on ground (2) and dimensioned to bear load applied to the roadway. The cellular sandwich structure is composed of long structural units and road modules (1a-1c) connected to each other in longitudinal direction of roadway by joint structures (6) at joint members (3a-3c) for allowing thermal expansion and retraction. An independent claim is also included for a roadway or bearing structure of roadway.