STRUCTURE FOR ATTACHING GRATING LID ONTO RESIN TROUGH BODY; TROUGH TRACK; TROUGH TRACK FORMING METHOD; AND GRATING LID

摘要

This resin trough body 3 has an approximately U-shape cross-sectional shape comprising a bottom section 9 and side sections 7 on the two sides. Vertical reinforcement ribs 11 are formed at a prescribed interval on the outer surface of both side sections 7 of a trough body 3 of a prescribed length. Further, near the front and back ends of the trough body 3, horizontal ribs 13 are formed so as to link two vertical ribs 11. An accommodation space for accommodating a grating lid 5 is formed by a pair of L-shape members 23 being fixed with bolts to a fixing jig 93 that has been attached to the horizontal ribs 13. The grating lid 5 is accommodated in said accommodation space, and the grating lid 5 is fixed to a bolt fixing section, which is an attachment hole 25b formed in the horizontal plane of the L-shape members 23.