关键词: 沙漠砂, 静力触探, 标准贯入, 物理力学性质

Abstract: The desert sands in central Taklimakan Desert have peculiar engineering properties. On the basis of a large amount of laboratory simulation test in large medium tank and field in-situ tests, we set up relationship between the indexes of cone penetration test and standard penetration test and engineering properties. Moreover the paper tabulated some experiential formula. And based on the test of desert sand, we can get useful research results. It will get conservative estimate when we evaluate desert sand compactness by the present criterion of standard penetration N. The internal friction angle of desert sand is affected by compactness and moisture. It will increase by the accretion of compactness and moisture of unsaturated sand.

Key words: desert sands, cone penetration test, standard penetration test, physical and mechanical properties