STATIC ANALYSIS OF AXIAL ULTIMATE BEARING CAPACITY OF SINGLE PILE IN DIFFERENT DIAMETER AND SOIL LAYERS

摘要

Knowing axial ultimate bearing capacity of a structure is essential for construction of building,bridges and other huge structures. Moreover,knowing the effect of diameter change is crucial in the ultimate load carrying capacity of piles and the soil properties. The purpose of the paper is to investigate the axial ultimate bearing capacity of the piles at different diameter and to draw the t-z and q-z curves of the skin friction and end bearing capacities of the load resistance respectively,moreover to study the axial ultimate load carrying capacity of pile in homogenous soil layer and multi soil layer. The methodologies applied to evaluate the capacity are theoretical calculation using the static axial load and the ALLPILE software analyzing results. The result obtained shows that the piles having large diameter have higher bearing capacity and relatively low settlement and this is due to the increasing surface area of the pile shaft contact with soil interaction.