Tunnel pipe shed construction method

• Main Authors: YANG ZHONGFENG, MA GUOSONG, XIE BIN, SHI WENTAO, ZHANG XUE, YANG QINGGUO, GAO TIAN
• Format: Patent
• Language: Chinese; English
• Published: 12.04.2024
• Subjects: EARTH DRILLING; FIXED CONSTRUCTIONS; GALLERIES; LARGE UNDERGROUND CHAMBERS; MINING; SHAFTS; TUNNELS

The invention relates to the technical field of tunnel construction, and discloses a tunnel pipe shed construction method which comprises the following steps: excavating an upper annular section of a tunnel section, and excavating a pipe shed mounting hole; a supporting structure is arranged on the inner wall of the pipe shed mounting hole; drilling is conducted in the supporting structure, and pipe shed mounting holes are formed; steel pipes are inserted into the pipe shed mounting holes, reinforcement cages are mounted in the steel pipes, and through holes are formed in the steel pipes; grouting is conducted in the steel pipe; the pipe roofs are arranged in a fan-shaped manner, are fixed at a tunnel portal by adopting a cover arch and are driven into a rock stratum along the longitudinal direction of the tunnel at an external insertion angle of 1-3 degrees, and the length of the pipe roofs extending into the rock stratum is 5-7m; anchor rod supporting is conducted on the pipe shed; and after anchor rod supp