Novel cold-proof and anti-freezing system and method for high-ground-temperature tunnel in cold region

Abstract

The invention discloses a novel cold-proof and anti-freezing system and method for a high-ground-temperature tunnel in a cold region. The novel cold-proof and anti-freezing system comprises a heat taking system, a control and transmission system and a heating system. The heat taking system comprises a heat taking tunnel and an air source heat pump unit mounted in the heat taking tunnel, and the heat taking tunnel is excavated and built at the high-temperature part of the surrounding rock of the main tunnel and is in contact with air through a heat exchange pipe to absorb heat of the air. The heating system is arranged between a secondary lining and a heat preservation layer at the position of a portal of the main tunnel and in a drainage ditch. The heating system comprises a lining heat supply pipe and a drainage ditch heat supply pipe. The heat taking system takes heat by means of an air source, and heat is transmitted to the lining heat supply pipe and the drainage ditch heat supply pipe of the heating system through the control and transmission system, so that heat supply and heat preservation of the lining and the drainage ditch are achieved. According to the novel cold-proof and anti-freezing system and method for the high-ground-temperature tunnel in the cold region, high ground temperature is combined with freezing resisting, and novel cold-proof and anti-freezing system and method have great practical application value for the high-ground-temperature tunnel in the high-altitude cold region; and the active heat supply method can effectively solve the freezing damage problem of the tunnel.

Description

technical field [0001] The invention relates to the technical field of tunnel operating environment safety, in particular to a new anti-cold and frost-resistant system and method for tunnels with high ground temperature in cold regions. Background technique [0002] In recent years, with the rapid development of my country's economy and society, tunnel construction is also booming. With the development of the western region and the construction of the Sichuan-Tibet Railway, many ultra-long tunnels with high buried depths have appeared in high-altitude and cold areas. These areas have complex geology and harsh climates, and frost damage is one of the most significant problems in tunnel construction. [0003] According to research reports on tunnels at home and abroad, tunnel frost damage is mainly manifested as lining ice hanging, icicles hanging on the roof, and water ditch freezing, etc., which affect driving safety; Roof cracking poses a potential threat to the long-term ...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a new type of anti-freezing system and method for high-temperature tunnels in cold regions, which utilizes the High-temperature heat energy prevents frost damage in tunnels, and solves the problem of antifreeze in lining and thermal insulation ditches

Images