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Numerical studies of some aspects with pressuremeter tests and laterally loaded piles

University of British Columbia

elastic material with hyperbolic stress strain relation, is employed throughout. A thin interface element and a simple tension cut-off model simulating the soil-pile interface behavior has been incorporated in the program. Results of the program and the interface simulation are in good agreement with closed form solutions. From comparison of the responses of pressuremeter and lateral pile conditions, the pressuremeter curves can be adjusted to represent the P-Y curves. However, due to features of the loading mechanism, the installation has a different effect on pressuremeter curves than on P-Y curves. For pressuremeter curves, the initial stiffness is much affected by the soil disturbances, but the ultimate pressure is not significantly affected. The opposite effects are observed for P-Y curves. The practical significance of these effects in developing P-Y curves from pressuremeter expansion curves is discussed.

Text

2010-07-13

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http://hdl.handle.net/2429/26373

Civil Engineering

University of British Columbia

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