Winter constructional technology plan for the concrete project of Wanwanchuan tunnel

To ensure winter construction of Wanwanchuan tunnel can go smoothly,the thesis analyzed the characteristics of the construction and local climate condition,the discussion was made from two aspects of concrete constructional technology plan and quality,proposed the specific measures for winter constructions,which were put into practice and the result showed that security could be controlled and the quality was high in winter constructions,resolved some problems existing in winter construction of tunnel concrete in severe frigid Dongbei district.