Thermal insulation system in a tunnel portal section using solar photovoltaic technology

Abstract

The invention discloses a thermal insulation system in a tunnel portal section using solar photovoltaic technology. The thermal insulation system comprises a pavement heating system and a power supply system, the pavement heating system is laid in the pavement of the tunnel portal section; the power supply system is connected with the pavement heating system, and used for providing electric energy for the pavement heating system; and the pavement heating system comprises heating cables and power cables, the heating cables are laid in pavement concrete, the power cables are laid in tunnel cable grooves, one ends of the power cables are connected with the heating cables, and the other ends of the power cables are connected with the power supply system. According to the thermal insulation system, the pavement heating system is arranged in a concrete pavement in the tunnel portal section, the tunnel portal in a cold area is heated by the heating cables, heat radiated by heating cables is transmitted to the surface of the structure through structure layers, and ice and snow are heated to be melted through sensible and latent heat methods; the thermal insulation system has a good heating effect, no erosion effect on the pavement, and the long service life; and the heating cables are buried under the pavement without occupying inner space of a tunnel.

Description

technical field [0001] The invention relates to the technical field of antifreeze and heat preservation of tunnels in cold regions, in particular to a heat preservation system for tunnel openings using solar photovoltaic technology. Background technique [0002] With the rapid development of highway construction in our country, the highway network is gradually perfected, the number and scale of highway tunnel construction are increasing, and the number of tunnels built in high latitude and high altitude cold climate conditions is correspondingly increasing. The cold climate has a significant impact on the safe operation of highways. The temperature in cold areas in my country reaches below zero in winter, and atmospheric snowfall will make the road covered with snow and ice, and the friction coefficient of the road surface will be greatly reduced, which will significantly reduce the traffic capacity and safety factor. Traffic accidents caused by car brake failure, direction l...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the technical problems existing in the prior art, the object of the present invention is to provide a thermal insulation system for the entrance section of the tunnel using solar photovoltaic technology, so as to solve the problem of snow and ice on the road surface at the entrance section of the tunnel engineering in cold regions, and reduce the disease control of the road surface , snow and ice melting costs and maintenance and repair costs, effectively protect the environment and improve economic and social benefits

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