Wujiang San Bridge in Sinan, Guizhou.
Wujiang San Bridge in Sinan, Guizhou. Located in the north new area of Sinan County, it is the main bridge connecting the east and west of the river in the county, and the design scheme of the bridge is a single-tower cable-stayed bridge with concrete girders, with a total length of 405 meters and a width of 20.5 meters. This project is located in the northeast of Guizhou in the middle and low mountain distribution of mountainous areas, residing in the Wuling Mountains southwest section of the northern slope, the middle and lower reaches of the Wujiang River, for the stripping and erosion of the deep river valley geomorphology. The terrain on both sides of the Wujiang River is steep, with large natural slope, the highest point is 1040m above sea level, the lowest point is 350m above sea level, with a height difference of nearly 700m, which is typical of the topography of mountainous and hilly areas. Mountain undulation, steep terrain, chicken claw terrain and gullies are densely populated. The whole line to the lowest elevation of the Wujiang River (354m), near the Fort Gaodui for the highest route high point of 590m, the lowest and highest point of the difference of 236m.
Wujiang San Bridge in Sinan, Guizhou. was opened to traffic, the city's northern new area and Longjiang area connected to effectively improve the Tongzun Provincial Highway S304 line transit conditions, directly pulling Sinan County, Wujiang River on both sides of the new urban development and construction, the formation of a new urban highlights, to accelerate the pace of urbanization in Sinan County, to promote the development of industrial parks and tourism industry to lay the foundation for the "hardware".
Construction Process Introduction:
The starting point of the project route is Sinan County Guanzhongba Street, which is connected to Wujiang Avenue, passing through Changtianba and Tangkou, and ending at Park Guitang Village, and the end point is located in Xingqian Shipyard, and the total length of the road is 1.815km. The whole line is designed according to the standard of secondary highway, and the design speed is 40km/hour, and the width of the road base is 8.5m, 22m; the width of the road surface is 7.5m, 14m; and the design of the car loading grade is highway-I for the new construction, and highway-Ⅱ for the utilization. The design car load level is highway - Ⅰ for new section and highway - Ⅱ for utilization section; the pavement type is asphalt concrete; the design flood frequency of large and medium bridges is 1/100, and that of small bridges, culverts, and roadbeds is 1/50.
The starting and ending mileage of west bank approach road of Wujiang San Bridge in Sinan, Guizhou Project is KO+000~K4+932.158, and a broken chain is set at stake K3+040 of the west bank approach road, and the incoming stake K3+270.507 = outgoing stake K3+040, with the broken chain length of 237.507m, and the length of the route is 5.163km. M7.5 slurry masonry slate 123m3, I-type shoulder protection 42m, M7.5 slurry masonry slate 64.9m3, I-type protection 924m, M7.5 slurry masonry slate 503.6m3, short wall 7m, M7.5 slurry masonry slate 25m3, rhombic mesh berm 3,742, M7.5 slurry masonry slate 5,732m3, retaining wall 1,268m, M7.5 slurry masonry slate 9421.7m3, window retaining wall 433m, M7.5 slurry masonry slate 5732m3, window retaining wall 1,268m, M7.5 slurry masonry slate 421.7m3, window retaining wall 1,680m, window retaining wall 1,620m. 433m, M7.5 masonry schist 2782.8m3, lined arch slope 248m, M7.5 masonry schist 321m3.
