TECHNIQUES AND INFLUENCING FACTORS of embankment of LIME-TREATED EXPANSIVE SOIL IN XIANGSHI Freeway
Hu Mingjian1，Kong Lingwei1，Guo Aiguo1，Wang Qing2
(1Key Laboratory of Rock and Soil Mechanics，Institute of Rock and Soil Mechanics，The Chinese Academy of Sciences， Wuhan 430071 China) (2Construction Headquarters of Hubei Xiangshi Freeway， Shiyan 442714 China)
Abstract：In order to make the embankment construction convenient for organization and management，and reduce the quality difference induced by differences in machines，techniques and levels of construction，reasonable construction techniques and methods are investigated，and the performance of the construction machines and their combination is statistically analyzed in the construction of embankment of lime-treated expansive soil in Xiangshi freeway. The reasonable machine arrangement and job practice are proposed accordingly. The influencing factors of the construction，such as grain size of soil mass，times of road mixing and field mixing，thickness of the loosening layers，and water content，speed and times of roller compaction，are analyzed. Some reasonable suggestions about the construction of expansive soil embankment in local conditions are put forward.
2004, Vol. 23 
