Multi-arch tunnel pilot-tunnel-free construction structure and method

• Main Authors: SHU YANG, LIU XIAO, JIAO DAN, WEI TENGYUAN, HUA CHENGLONG
• Format: Patent
• Language: Chinese; English
• Published: 15.08.2023
• Subjects: EARTH DRILLING; FIXED CONSTRUCTIONS; GALLERIES; LARGE UNDERGROUND CHAMBERS; MINING; SHAFTS; TUNNELS

The invention relates to the technical field of tunnel construction, and particularly discloses a multi-arch tunnel pilot-tunnel-free construction structure and method.The multi-arch tunnel pilot-tunnel-free construction structure comprises a preceding hole and a following hole, a plurality of supporting plates are installed on the inner side of the preceding hole and the inner side of the following hole, and supporting and stabilizing mechanisms used for supporting the supporting plates and oblique inserting reinforcing devices are arranged between the inner side of the preceding hole and the supporting plates; the supporting and stabilizing mechanism is arranged, the supporting base is moved to one side of the supporting plate close to the blasting position in the construction process of the front hole and the rear hole, then the reinforcing plate is rotated, the reinforcing plate is attached to the supporting plate, the supporting plate is supported through the reinforcing plate, and the supporting plate i