Assessment of pile failures due to excessive settlement during pile load test

Interpretation of static pile loading test results and application for design of pile groups

Recent major bridge projects in the Greater Vancouver Area showcase the experience of local geotechnical engineers. Large static pile loading tests have been carried out on a number of these projects including the Pitt River Bridge, Golden Ears Bridge and Port Mann Bridge projects. This paper briefly discusses different analytical approaches to load test interpretation and reviews the approach ...

Analysis of Centrifuge Pile Tests; Simulation of Pile-driving

Critical assessment of pile modulus determination methods

The elastic modulus of a concrete pile is an important parameter for the interpretation of load test results. This paper summarizes and assesses the methods available for its determination. Ten methods have been identified of which four are based on laboratory tests and the remainder on in situ pile instrumentation. Six of the methods have been used to interpret the modulus of a concrete pile s...

Correcting photon counts due to detector pile up

Where B is the ratio variance to average, p is the after pulsing probability, I is the intensity in photon counts/s and t is the dead time. Ignoring for the moment the after pulsing effect, in the absence of other effects, the value of B will decrease linearly with the intensity with a slope given by 2t. The following graph is an example for the expected changes in B as a function of intensity ...

simplified method for settlement prediction of single pile and pile group using a hyperbolic model

a simplified approach for nonlinear analysis of the load-displacement response of a single pile and a pile group is presented using the load-transfer approach. a hyperbolic model is used to capture the relationship between unit skin friction and pile-soil relative displacement developed at the pile-soil interface and the load-displacement relationship developed at the pile end. as to the nonlin...