Arched tunnel structure and arched tunnel construction method

• Main Authors: CHEN XIN, HOU ZHANJING, WANG PENGFEI, HUANG XIAOLONG, YUAN FUGUI, SHEN HAIQI, ZHOU YANG, HU YANG, LIU YUSONG, SUN LIANGLIANG, LUO XUAN, ZHAO DONG
• Format: Patent
• Language: Chinese; English
• Published: 31.10.2023
• Subjects: EARTH DRILLING; FIXED CONSTRUCTIONS; GALLERIES; LARGE UNDERGROUND CHAMBERS; MINING; SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS; SHAFTS; TUNNELS

The invention provides an arched tunnel structure and an arched tunnel construction method. The arched tunnel structure comprises a supporting rod, a jacking, an arched beam, a lower ridge and an arc-shaped lower formwork. And the top support is supported by the supporting rod. The multiple arched beams are arranged at intervals in the longitudinal direction of the tunnel, and each arched beam is supported by the multiple jacking supports. Each lower ridge extends in the longitudinal direction of the tunnel, the multiple lower ridges are arranged at intervals along the length track of the arched beams, and each lower ridge is supported by at least two adjacent arched beams. The arc-shaped lower formworks are supported by the lower ridges and spliced into an arch-shaped lower pouring face, and the lower pouring face is located on the sides, back to the lower ridges, of the arc-shaped lower formworks. During pouring, stress on the lower pouring face is dispersed to the length track lines of the multiple lower r