Thermal insulation, temperature control and moisture-proof system for cable trench of highway tunnel

Abstract

The invention discloses a highway tunnel cable trench heat insulation, temperature control and moisture-proof system which comprises a cable trench heat insulation module, a cable trench temperature control and moisture-proof module, a cable trench drainage module, a cable trench waterproof wall module and an underground water pumping drainage module. A waterproof wall module, a drainage module and a heating module are arranged in the cable trench, cable trench cooling and moisture-proof modules are arranged on the outer side wall and a cover plate of the cable trench, and underground water pumping and drainage modules are arranged at the arch wall part and the inverted arch part of the cable trench. The cable trench integrates the functions of heat insulation, temperature control and moisture prevention, and can effectively solve the problems of leakage, unsmooth drainage, short service life, high maintenance cost and the like of the cable trench in a high ground temperature or cold region.

Description

technical field [0001] The invention relates to a thermal insulation, temperature control and moisture-proof system for a highway tunnel cable trench, which belongs to the technical field of tunnel engineering. Background technique [0002] With the continuous improvement of traffic engineering technology and the continuous improvement of road network, the construction of expressways in Tibet, Sichuan, Yunnan and other areas with complex geological conditions has ushered in a climax. During the construction of the tunnel project, there is no way to avoid the geothermal area or the alpine area, and the problems of high ground temperature heat damage or freezing disease often occur: [0003] 1. In a high temperature environment, the performance of the supporting material deteriorates, the mechanical properties decline, and the temperature stress causes the concrete structure to crack; the risk of hot water inrush from the fault is high, and the leakage water flows into the cab...

AI Technical Summary

Problems solved by technology

[0003] 1. In a high temperature environment, the performance of the supporting material deteriorates, the mechanical properties decline, and the temperature stress causes the concrete structure to crack; the risk of hot water inrush from the fault is high, and the leakage water flows into the cable trench along the side wall, resulting in frequent safety accidents of electromechanical equipment and a serious threat The life safety of operators; high temperature and humidity conditions accelerate the aging of power supply lines, increase maintenance workload, and increase operating costs

[0004] 2. In the alpine environment, the drainage of the tunnel is not smooth, and the drainage pipe is blocked by ice; the underground seepage water seeps out, and the lining icing and the road surface are icy, which endangers the driving safety; Cycles lead to cracking, loosening and peeling of the lining, which poses structural safety hazards

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