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Discussion on the formula of the ultimate bearing capacity of foundation in Shanghai region
Pages: 6-9
Year: Issue:  4
Journal: Geotechnical Investigation & Surveying

Keyword:   natural foundation; ultimate bearing capacity; safety; adjustability;
Abstract: Based on the data of the 38 loading plate tests in 11 sites,Discussion on the adjustability of using Hansen formula is carried out to calculate the ultimate bearing capacity of foundation in Shanghai region.By analysing the safety of Hansen formula which is compared with the engineering experience in Shanghai region,the result shows that using discount of 20% of the shear strength in the direct shear test and corrected parameter for calculation is much better than the traditional discount of 30%.In addition,the effect of the sublayer and surperload in the formula is discussed in this paper.The research can provide reference for the revision of foundation design code in Shanghai region.
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