Research On The Technology Of Coagulation Of Ice And Tunnel Construction In Winter And The Pavement Of High Altitude Locatities

With the development of China’s western development strategy and vigorously promote the construction of Sichuan, in high altitude area, Yunnan, Tibet, Qinghai, west of the road, the railway will need to build a large number of tunnel, high altitude area all the year round in a low temperature environment, the tunnel engineering in the construction and operation of the special natural environment, many problems with its unique characteristics, is of great significance for the study of related issues.High altitude climate cold, oxygen content in air is low, heat preservation measures on the corresponding construction equipment and concrete in the construction process is an important guarantee for the smooth construction of one of the core issues, personnel protection is high altitude construction must be considered. Aiming at the problem of loss, temperature of concrete mixing process values are determined by empirical formula, effect of low temperature on the concrete causes are analyzed in detail, the heating of concrete material and construction process of insulation requirements. According to the analysis of engineering example BALANGSHAN mountain tunnel construction, puts forward the concrete method of mixing station, transportation equipment, two lining equipment and personnel protection insulation measures.High altitude areas pavement can easily freeze, especially in the transition section of tunnel lighting and temperature, big security hidden danger, the special treatment of the entrance section of the road, to prevent the ice on the road, which is favorable for driving safety. This paper has been opened to traffic tunnel partridge, detailed price thin ice material was used for special implementation scheme for surface treatment, the other high altitude Tunnel Pavement of a certain reference solutions.