Subgrade pile No.: K80+600~K87+200 (Contract Section III)
Pavement pile No.: K66+831~82+300 (Contract Section I)
Pingyuanjie ~ Suolongsi Expressway is an important section of the Hengyang-Nanning-Kunming National Highway GZ75 in Yunnan Province from Kunming to Luocunkou, starting on Northeast Side of Pingyuanjie Town, Yanshan County, connecting Yanshan ~ Pingyuanjie Expressway and ending at Suolongsi, Mile County. It is a part of the “five-longitudinal and seven-transversal” network constructed by the Ministry of Transport of China as well as the main way of “three-longitudinal, three-transversal and nine-passage” network of Yunnan Province connecting the way out to sea in Guangxi. The main line of Pingyuanjie ~ Suolongsi Expressway is totally 61.306km long. The project was commenced on November 16, 2003 and completed and open to traffic on February 12, 2007.
In the pavement construction, the Company applied the high molecule compound modified asphalt autonomously produced by the Company, adopting the flexible base pavement structure for the first time in Yunnan Province.