The methods of large-eddy simulation,the motion of sand particles with mixed sand sizes and immersed boundary are used to simulate the formation and evolution of sand ripples and sand dunes.

Vibrating compaction method of large stone asphalt mixture;

This paper sums up the construction of flexible base adopting the large stone asphalt mixture (LSM-30), which provides the technical reference for the construction of new type of road surface in the future.

Manyasphalt technologists believe that the use of large stone asphalt mixture will minimizeor eliminate the rutting of duty pavements, and other performance won’t reduce.

Graduation design of large-stone asphalt mixes based on volume idea;

The large-stone asphalt mixes(LSAM) are used as flexible base on the Yichang-Changyang test section of the west expressway of Shanghai to Chengdu,and the nuclear density apparatus is used to detect the compactness of LSAM pavement.

Through deeply studying and researching a large number of domestic and abroad documents concerning the subject, this article has introduced Large-Stone Asphalt Mixes (LSM) that is successfully popularizing applied in America, Australia and etc.