Abstract
When a load is applied to piles, a stress distribution corresponding to that load occurs in the soil. In order to study the characteristics of this stress distribution, some model pile tests are carried out on sand. The results of these experiments are compared with the values based on the theory of elasticity.Equivalent depth of application of load is defined as the theoretical location of the load P which, by the theory of elasticity, gives the same stress distribution under the pile as does an actually loaded pile.In group pile tests, the concentration of stresses under the tip of a pile and the application of the law of superposition of stresses to the stress distribution by piles in sand are studied.
