Long term settlement assesment of shallow foundation and extended duration of load step during pressuremeter expansion test
Long term settlement assesment of shallow foundation and extended duration of load step during pressuremeter expansion test
This paper compares the results of extended pressuremeter tests with the results of shallow foundation loading tests. These results are discussed in the light of the predictions of the formula for estimating settlement of shallow foundations. This formula, based on the results of the pressuremeter test developed by Louis Ménard, incorporates a time factor through the B/B0 scale ratio. Other formulae, such as the elastic and Nonveiler formulae, are discussed to show possible adaptations of the Ménard formula. More recent developments proposed by Briaud with his Load Settlement Curve Method and Lehane on the creep factor are also covered in this research. This paper compares the prediction results and their extrapolation with the results of expansion tests carried out with 1, 5 minute and 1 hour increments. For the tests carried out by the former French Public Works Laboratories (RST) and other authors on experimental sites or real projects, different soils were tested over periods of up to 3 years.
Philippe Reiffsteck; Daoud Dirir Mohammad; Fabien Szymkiewicz
8th International Symposium on Pressuremeters (ISP2025)
Applications in Foundation Engineering
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