Temporary supporting structure for duct pieces in tunnel at connection channel

• Main Authors: HAN DONGBING, LI MINGE, BI CHENYAO, XIANG XINGMING, LIU CHUNXU, HU QINGYI, YU RONGHUAN, LIANG LEI, LI DANING, WANG BO, WANG HUAN, ZHAO YING
• Format: Patent
• Language: Chinese; English
• Published: 30.08.2022
• Subjects: EARTH DRILLING; FIXED CONSTRUCTIONS; GALLERIES; LARGE UNDERGROUND CHAMBERS; MINING; SHAFTS; TUNNELS

The utility model discloses a temporary supporting structure for duct pieces in a tunnel at a contact channel, which comprises two temporary steel supporting bodies, each temporary steel supporting body comprises a central steel frame, and the central steel frame is a direction frame formed by connecting four connecting beams end to end. An upper vertical supporting rod is arranged on the central axis of the top wall of the square frame, a left horizontal supporting rod and a right horizontal supporting rod are arranged on the central axis of the left side wall and the central axis of the right side wall of the square frame respectively, adjusting pieces are arranged at the ends of the upper vertical supporting rod, the left horizontal supporting rod and the right horizontal supporting rod respectively, and the adjusting pieces are tightly attached to pipe pieces through base plates. A lower vertical supporting rod is arranged on the central axis of the bottom wall of the square frame, and the end of the lowe