Tunnel flexible supporting structure, flexible layer of flexible supporting structure, and construction method and application of flexible supporting structure

• Main Authors: CHANG HUAN, LIU NAIFEI, ZHANG YUWEI, SONG ZHANPING, LIANG DI, WANG SHIBIN, NAM A-RIM
• Format: Patent
• Language: Chinese; English
• Published: 31.01.2023
• Subjects: EARTH DRILLING; FIXED CONSTRUCTIONS; GALLERIES; LARGE UNDERGROUND CHAMBERS; MINING; SHAFTS; TUNNELS

The invention relates to a tunnel flexible supporting structure, a flexible layer of the flexible supporting structure and a construction method and application of the flexible supporting structure, the structure comprises a secondary lining, the flexible layer and a constant group anchor rod which are arranged in a tunnel from inside to outside, a penetrating hole of the constant-resistance anchor rod is reserved in the flexible layer, and the space between the constant-resistance anchor rod and the penetrating hole is sealed through a sealing gasket; after the tunnel is excavated, the flexible layer is firstly laid, the flexible layer is in lap joint through an opening seam, then the flexible layer is fixed through a constant-resistance anchor rod, and a hole is sealed through a rubber gasket; after construction of the flexible layer is finished, secondary lining is carried out, secondary lining steel bars are erected, concrete is poured, and finally secondary lining maintenance is carried out; the erosion