Tunnel cantilever heading machine excavation and support integrated tool and construction method thereof

• Main Authors: LI YUXUAN, LI YANBIN, ZHANG YAN, DONG YUN, WANG WANDA, DONG FENG, LIAO YONG, DONG XUFEI, DONG ZHIGUO, ZHANG FEIFEI, JIN TAO, CHEN XIAOTONG
• Format: Patent
• Language: Chinese; English
• Published: 12.05.2023
• Subjects: EARTH DRILLING; FIXED CONSTRUCTIONS; GALLERIES; LARGE UNDERGROUND CHAMBERS; MINING; SHAFTS; TUNNELS

The invention discloses a tunnel cantilever heading machine excavation and support integrated tool and a construction method thereof.The integrated tool comprises a rack stress frame, the rack stress frame comprises a horizontally-arranged fixing plate, and a plurality of supporting columns are arranged on the lower end face of the fixing plate; a space area between the lower end face of the fixing plate and the ground is used for containing the cantilever tunneling machine, and the length direction of the fixing plate is the same as the tunneling direction of a tunnel. An arch frame mounting machine is arranged on the upper end face of the fixing plate and comprises a sliding mechanism arranged on the upper end face of the fixing plate, and an arch frame hoisting device and a top arch frame mounting device are hinged to the sliding mechanism; when the cantilever tunneling machine excavates a tunnel, the rack stress frame is propelled forwards along with the cantilever tunneling machine, so that the tunnel is