Analysis of Geometric Mispositioning in a Vertical Pile Group

by Aristotelis Lazaridis, Geotest Engineering Inc, Houston, United States,
M. W. O'Neill, Geotest Engineering Inc, Houston, United States,



Document Type: Proceeding Paper

Part of: Geotechnical Engineering Congress?1991

Abstract:

A straightforward procedure is described whereby an approximate, three-dimensional, nonlinear model for the analysis of pile groups is used to simulate errors in major group parameters by relating them to independent errors in position and batter of the piles in the group. Position errors are treated probabilistically using random number generation, and the deterministic model, programmed for a microcomputer, is run several hundred times in order to describe the frequency histogram of the major group parameters, which allows the analyst to assess the risk for a given set of position errors, as when developing tolerances for construction specifications. An example application is presented in which one pile in a group is mispositioned, with both Gaussian and random distributions of geometric errors.

Subject Headings: Errors (statistics) | Pile groups | Computer models | Three-dimensional models | Geometrics | Computer analysis | Three-dimensional analysis

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