Development of CCCC No.2 Aviation Company and No.4 Aviation Company

The company adheres to the enterprise spirit of "striving for first-class branches and creating first-class management". We make use of our own talents and equipment advantages, devote ourselves to market research, constantly develop new technologies and new processes, have a number of domestic advanced construction technologies with characteristics, and create a number of famous projects. Wuhu yuxikou Coal Terminal was built in the early 1950s, which is the first modern coal terminal on the Yangtze River in China. In the 50,000-ton wharf project of Guangzhou Huangpu Xinsha Phase I completed by 1990, the new technology of lattice steel sheet pile wharf was successfully applied, and the construction methods of large-scale steel sheet pile lattice integral hoisting, large-scale sand backfilling of foundation trench and deep-water vibroflotation compaction technology were pioneered, which filled the domestic blank. The Yantian Phase II Road Freight Yard Project, which was completed in 2000, won the Quality Engineering Award of the Ministry of Communications and the "Luban Award", the highest national architectural award. In recent years, with the expansion to the field of road and bridge, there has been a new breakthrough in road and bridge construction technology. This paper introduces the technology of foundation, super-large bearing platform, towering main tower, large caisson, cantilever assembly and pouring of box girder, paving pavement with concrete paver and so on. In 1995, it won the construction contract right of Jiangyin Yangtze River Highway Bridge, the first steel-crossing suspension bridge in China, and overcame the construction technical difficulties of the world's first open caisson, the first super-long pile group foundation in China, and the giant tower with a height of 184m, which was completed with high quality in197. Guangxi Nanning Airport Expressway won the "Golden Cup Award" for municipal engineering and the National Silver Award for Quality Engineering. At the end of 2004, the construction of the first steel tower of the third Nanjing Yangtze River Bridge was completed ahead of schedule with high quality and efficiency, and won the gustavus Lin Deen Prize of the International Bridge Conference in 2007. In recent years, it has obtained 5 national excellent projects, 5 ministerial-level high-quality projects and high-quality concrete 18, 54 bureau-level high-quality projects and high-quality concrete, and completed more than 20 technical innovation and scientific and technological key projects. The company successfully passed the ISO 9002: 1994 standard quality system certification in June 2003, and passed the integrated audit of quality, environment and occupational safety and health in February 2003.

The company has accumulated rich construction experience in long-term construction practice and won a good reputation. In 2004, it was rated as "National Excellent Enterprise of Engineering Construction Quality Management" by China Construction Industry Association, and won the National Quality Award in 2006 and the National "May 1 Labor Award" in 2007. Over the years, it has maintained the honorary titles of "two advanced units in civilized construction of national transportation system", "civilized units in Anhui Province", "advanced construction enterprises in Anhui Province" and "provincial enterprises that honor contracts and keep promises".