GFRP intelligent combined anchor rod suitable for subway roadway support and construction method

• Main Authors: LI HUBING, GUO LINFENG, ZHU XIANG, ZHU HONG
• Format: Patent
• Language: Chinese; English
• Published: 29.06.2021
• Subjects: EARTH DRILLING; FIXED CONSTRUCTIONS; GALLERIES; LARGE UNDERGROUND CHAMBERS; MINING; SHAFTS; TUNNELS

The invention discloses a GFRP intelligent combined anchor rod suitable for subway roadway support and a construction method. The GFRP intelligent combined anchor rod comprises a GFRP anchor rod body, a claw piece, a sleeve, a fixing plate and a plurality of cushion blocks; the top end and the bottom end of the GFRP anchor rod body are each fixedly provided with a limiting seat, and the limiting seats are the upper limiting seat and the lower limiting seat correspondingly; the portion, between the two limiting seats, of the GFRP anchor rod body is sequentially sleeved with the fixing plate, the sleeve and the claw piece from top to bottom; the fixing plate can be fixed to the top end face of an anchoring hole of a subway roadway, and the position of the fixing plate is fixed; when pre-tightening force is applied to the top end of the GFRP anchor rod body, the claw piece can stretch towards the periphery with the GFRP anchor rod body as the center and is anchored in soil around the bottom end of the correspond