Bi-Directional Static Load Tests of Pile Models

Review of methods of analysis of test results from bi-directional static load tests

Results from bi-directional tests are not the same as those obtained from top loading tests and although bi-directional test data often contain more geotechnical information, it is the characteristic behaviour of the head of the pile which is of interest. In order to provide an equivalent top loading characteristic, methods have been developed to enable the addition of the individual components...

Bi-directional Static Load Testing – State of the Art

The use of static load testing in optimising design and providing verification of suitability and constructability continues to be unsurpassed in the foundation industry. The utilisation of top load reaction testing appears to be that with which most European engineers are familiar, but a variation on this, which has become just as conventional in some parts of the world, is the use of bi-direc...

Nonlocal elasticity theory for static torsion of the bi-directional functionally graded microtube under magnetic field

The microtubes are important structures in nano electromechanical system .in this study a nonlocal model is presented to investigate the static torsion behavior of microtubes made of bi-directional factionally graded material (BDFGM) subjected to a longitudinal magnetic field. Mechanical properties of BDFGM microtube varies in the radial and longitudinal direction according to an arbitrary func...

Analysis of Centrifuge Pile Tests; Simulation of Pile-driving

Determination of Static Load Models from Ltc and Capacitor Switching Tests

This article investigates the characteristics of a pure residential load through field tests. Staged voltage perturbations by station transformer tapchanging are induced both with and without switching ON the feeder shunt capacitors. Sudden voltage deviations by capacitor switching are attempted. Static load parameters are derived from the recorded load response to voltage variations. It is fou...