关键词: 风积沙, 榆林, 地基, 标贯

Abstract: The standard penetration test is one of the most used in-situ testing methods for sandy soils. To understand the details of the soil stratigraphy and the soil bearing capacity of Maowusu Sandy Land in Yulin, the standard penetration test was performed for the study. The results show that within the depth of 5m below the ground surface, the change of the blow count after correction is small, which indicates that the aeolian sand layer is relatively uniform and the aeolian sand is relatively uniform; The data obtained from the empirical relationship between the SPT blow count and the soil bearing capacity proposed by the Third Survey and Design Institute of the former Ministry of Railways is more reasonable, but it is smaller than the field static plate load test results; The compactness of the aeolian sand directly determined by the SPT blow counts is slightly higher than that of determined by the relative density estimated by the Meyerhof formula; The internal friction angle estimated by the Peck formula is consistent with the results of the direct shear tests.

Key words: Aeolian Sand, Yulin, Foundation Soils, Standard Penetration Tests