brief introduction
Taigan expressway starts from Mashi Town, Taihe County, and connects with the completed Changfu to Taihe expressway. It passes through Taihe County, wanan county, suichuan county and Nankang under the jurisdiction of Ji 'an City, and finally connects with Jinjiling Expressway in Nankang under the jurisdiction of Ganzhou City. The route is long128km, and the estimated total investment of the project is 3.676 billion yuan. The project started construction on 200 1, 1, and was completed and opened to traffic on 20041.
design scheme
The whole line is built according to the four-lane expressway standard, and the calculated driving speed is 100 km/h, and the subgrade is 26 meters wide. There are 5 tunnels with 3,850 linear meters, 5,967 linear meters of extra-large bridges (including viaducts) 13, 28 medium bridges 1560 linear meters, 5 small bridges 150 linear meters, 5 interchanges, 48 separated interchanges and 547 culvert passages. The topography, geology and landform of the project are complex, with the longest highway tunnel and the highest slope, and red sandstone all over the bid sections, so the construction task is very arduous.
Architectural difficulty
Taigan expressway, the first expressway built in Jiangxi Province, is famous for its high slope, high fill, viaduct and tunnel. The builders adopted the NATM and the second oblique transportation construction, and built the longest expressway tunnel in our province-Foziling Tunnel. Red sandstone melts at the sight of water and dries at the sight of wind, covering almost the whole line of Taigan Road. The construction party "not far from Wan Li" moved soil for filling, effectively ensuring the quality of subgrade; Taigan expressway also used modified asphalt for the first time in the construction of expressway in our province, which laid a solid foundation for enhancing the high temperature resistance and durability of pavement.
vital functions
Taigan expressway is the first expressway in Jiangxi Province to enter the mountainous area. This project is a World Bank loan project. Project construction, from project initiation, bidding, equipment procurement to project construction, supervision, engineering change and measurement, is carried out according to the requirements of World Bank loan projects. The completion and opening to traffic of this project has opened up a fast passage for Jiangxi Province to the developed coastal areas, which is of great significance for promoting the economic ties between Jiangxi and the coastal areas, making Jiangxi become the "three bases and back garden" at an early date and realizing the rise of Jiangxi in the central region.
The above is the introduction of Zhong Da Consulting to Taigan expressway. For more information about expressways, please pay attention to the architectural knowledge column of Zhong Da Consulting.
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