Research on the dry compactness technology in subgrade filled with wind-blown sand in sand damage area

Abstract

Wind-blown sand in sand calamity area brings great difficulty with people' s survivorship and trip ,and it brings blight with agricultural crops in adjacent area. How to abate sand damage is we the problem that requirement resolve. Wind-blown sand has good water stability and fine dry tamping compact characteristic and prevent from salt expansion. As road material, it not only solve disease of subgrade but also improve amend environment and saving project investment. Because of the climate feature of desert area is little rainfall, large volume of evaporation, dry and absence of water, It brings out great inconvenience, due to the large quantity of water using in project and poor transportation condition. To reduce the quantity of water using, we do research on the technology of dry compactness. This technology is feasible through trial and extending and gains favorable economic benefit. © 2008 Science Press Beijing and Springer-Verlag GmbH Berlin Heidelberg Geotechnical Engineering for Disaster Mitigation and Rehabilitation.