Sound barrier construction program
Sound barrier construction program
First, the project profile
Hubei high-speed section of the starting mileage for the K42 +907.5 ~ K49 +328, 6.42km long. Line Jingzhou City, Hubei Province through the town of Mengxi town, Nanping town. I have a total of 1 sensitive points, located in the Golden Horse Village 10 lines on the left side of the line from the nearest 80m, in the sensitive point of the design of the sound barrier. The subgrade design sound barrier length of 300m, the left from the mileage of K46 +780 ~ K47 +080.
Roadbed sound barrier height of 3.015m, the basic part of the φ140 steel pipe pile foundation, steel pipe length 2.8m, spacing 2.1m, buried depth of 2.5m. The upper pouring joint beam and column, using C20 reinforced concrete structure. Between the beam above the column and the use of sound-absorbing brick masonry, and every 30m set up a expansion joints, a total of 29 Road.
Second, the basis for preparation
1, "Nanchang to Yichang Expressway Shixiong to Songxian two-stage construction design";
2, "highway bridge and culvert construction technical specifications" JTG / T F50-2011;
3, "highway engineering quality inspection and evaluation standards"; JTGF80 / 1-2004
4, site survey survey obtained engineering geology, hydrogeology, local resources, traffic conditions and construction environment and other information.
