Abstract
Soils considered as an engineering materials, in particular with respect to soil dynamics, are so complicated that they do not lend themselves to rigorous mathematical treatment. It is, therefore, to make some simplifying assumptions in order to develope the problem for the engineering purpose. This paper presents a procedure whereby the dynamic soil constants required for the prediction of the behavior of vibration piles may be determined experimentally. The pile-soil system is treated by considering the virtual mass around the pile and soil spring supporting it. By the use of this analogy the spring modulus and virtual mass can be determined by measuring the natural frequencies of the pile, varying the carring mass. Good agreement has been found between the proposed method and measured values.
