Thermal self-balancing system for prevention and control of freezing damage in tunnels in cold regions and construction method of thermal self-balancing system

• Main Authors: SUN KEGUO, HONG YIQIN, YUAN ZIYI, CUI KAI, HOU ZONGHAO, LIU XU
• Format: Patent
• Language: Chinese; English
• Published: 22.11.2019
• Subjects: BLASTING; EARTH DRILLING; FIXED CONSTRUCTIONS; GALLERIES; GEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS; HEATING; LARGE UNDERGROUND CHAMBERS; LIGHTING; MECHANICAL ENGINEERING; MINING; RANGES; SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS; SHAFTS; TUNNELS; VENTILATING; WEAPONS

The invention discloses a thermal self-balancing system for prevention and control of freezing damage in tunnels in cold regions and a construction method of the thermal self-balancing system. The system comprises in sequence an initial support structure, a waterproof board and a secondary lining structure from outside to inside. The upward and outward sides of the initial support structure are provided with a plurality of anchor rods, superconducting heat pipes and heat collection devices. The superconducting heat pipes are connected by three-way or two-way joints, every adjacent three-way joints are connected by the superconducting heat pipes, and the inner parts of the superconducting heat pipes, the three-way joint and two-way joints are filled with superconducting heat materials. According to the system, the thermal self-balancing system is added on the basis of the tunnel structure, the inner parts of the superconducting heat pipes, the three-way joint and two-way joints are filled with the superconduct