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Introduction
Published in Jean-Louis Briaud, The Pressuremeter, 2019
The purpose of this book is to provide guidelines for the proper use of the pressuremeter. This includes the proper way to perform a pressuremeter test, to reduce the data and to use the data in design. A 30 minute videotape has been prepared to cover these 3 topics (Briaud, 1989). The pressuremeter test consists of placing a cylindrical probe in the ground and expanding the probe to pressurize the soil horizontally (Figure 1). The pressure, p, on the soil (radial stress, σrr, at the cavity wall) and the relative increase in cavity radius, ΔRc/Rc, (hoop strain, εθθ, at the cavity wall) are obtained; therefore the pressuremeter test gives an in situ stress-strain curve of the soil. The pressuremeter test is repeated at various depths in order to obtain profiles of soil parameters.
A relook into numerical simulations of the pressuremeter test for the calibration of advanced soil models
Published in António S. Cardoso, José L. Borges, Pedro A. Costa, António T. Gomes, José C. Marques, Castorina S. Vieira, Numerical Methods in Geotechnical Engineering IX, 2018
Samples used in laboratory tests generally experience unloading of stresses when they are extracted from the ground, and are sometimes subjected to disturbances during transportation and handling. In comparison, the pressuremeter test does not require extraction of soil samples and is a useful in-situ test as it provides a direct measurement of the stress and strain response of the soil. Results from finite element simulations of pressuremeter tests can agree reasonably well with those conducted in-situ and it is shown that it can be used to verify parameters obtained from laboratory tests.
A relook into numerical simulations of the pressuremeter test for the calibration of advanced soil models
Published in António S. Cardoso, José L. Borges, Pedro A. Costa, António T. Gomes, José C. Marques, Castorina S. Vieira, Numerical Methods in Geotechnical Engineering IX, 2018
Samples used in laboratory tests generally experience unloading of stresses when they are extracted from the ground, and are sometimes subjected to disturbances during transportation and handling. In comparison, the pressuremeter test does not require extraction of soil samples and is a useful in-situ test as it provides a direct measurement of the stress and strain response of the soil. Results from finite element simulations of pressuremeter tests can agree reasonably well with those conducted in-situ and it is shown that it can be used to verify parameters obtained from laboratory tests.
Multicycle expansion tests in natural soils
Published in European Journal of Environmental and Civil Engineering, 2023
P.-G. Karagiannopoulos, Q.-H. Dang, P. Reiffsteck, J. Benoît, J.-C. Dupla, M. Peronne
The pressuremeter test, initially developed by Ménard in the 1960s, consists in lowering a cylindrical probe covered with a rubber membrane into a pre-bored hole, and inflating the membrane in increments of pressure until the cavity has approximately doubled in volume. The test and its procedures are well-documented in the literature (ASTM, 2020; ISO, 2004).