STATISTICAL ANALYSIS OF PHYSICAL AND MECHANICAL INDEXES OF THE TYPICAL LOESS

The major sources for uncertaing of physical and mechanical indexes of loess are discussed in the paper. The main indexes of the typical loess are statistically analysed. The result shows that there is regional distinction in average value standard deviation, and variation coefficient of the characteristic indexes, and therefore, statistics of the indexes should be aimed at specific project. The distribution of the main indexes of loess is almost normal distribution. When the loess slope stability is calculated, the distribution of loess indexes can be approximate from by the normal distribution.