SYMPOSIA PAPER Published: 01 January 1985
STP19290S

Analysis of the Unloading of a Pressuremeter in Sand

Source

The self-boring pressuremeter offers a particular advantage in that it can be installed in the ground with minimal disturbance. The loading stage of a pressuremeter test in sand has been analysed previously in terms of the shear modulus, angle of friction, angle of dilation and the initial horizontal stress and pore pressure. A new analysis is presented of the unloading stage of the pressuremeter test; this can provide a separate check on the parameters measured during the loading stage. An optimisation routine is used to fit the properties to the results of a series of tests at a site in Wales. Various important effects are discussed, including the effect of stress level on the shear modulus and the relevant value of the angle of friction to be used for the unloading stage.

Author Information

Houlsby, GT
Clarke, BG
Wroth, CP
Price: $25.00
Contact Sales
Related
Reprints and Permissions
Reprints and copyright permissions can be requested through the
Copyright Clearance Center
Details
Developed by Committee: D18
Pages: 245–262
DOI: 10.1520/STP19290S
ISBN-EB: 978-0-8031-4957-1
ISBN-13: 978-0-8031-0454-9