AN ANALYTICAL STUDY OF SINGLE PILE DUE TO PILE HEAD LOAD AND NEGATIVE SKIN FRICTION

The Influence of Negative Skin Friction on Piles and Pile Groups & Settlement of existing Structures

Negative skin friction occurs when concrete piles are situated in soft soils, consolidating soilmass, etc., resulting in a downward force that increases loading on shaft piles and reduces the bearing capacity of the piles. A new concept based on the shifting rate of piles, and the settlement rate of the surrounding soils has been suggested far the study of negative skin friction. Negative skin ...

Analysis of Centrifuge Pile Tests; Simulation of Pile-driving

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 ...

Dynamic Single-Pile Nim Using Multiple Bases

In the game G0 two players alternate removing positive numbers of counters from a single pile and the winner is the player who removes the last counter. On the first move of the game, the player moving first can remove a maximum of k counters, k being specified in advance. On each subsequent move, a player can remove a maximum of f(n, t) counters where t was the number of counters removed by hi...

A computational method to predict and study underwater noise due to pile driving.

A hybrid modeling approach that uses the parabolic equation (PE) with an empirical source model is presented to study and predict the underwater noise due to pile driving in shallow, inhomogeneous environments over long propagation ranges. The empirical source model uses a phased point source array to simulate the time-dependent pile source. The pile source is coupled with a broadband applicati...