Physical Modelling and Numerical Analysis of Vertical Piles

Abstract

Experimental studies were conducted to evaluate the performance of socketed piles under newlinecompressive load. The details of load transmission via friction on model piles socketed in newlinepseudo-rock samples are investigated. Indigenously designed and fabricated loading frame, a newlinenumber of socketed model pile load tests were performed. In the studies, two aluminium piles newlinewith outside diameters of 60 and 80 mm were utilized. By varying the length of the piles, several newlinelength-to-diameter ratios were examined. To prevent the significance of end resistance and to newlinegenerate skin frictional roughness, sponge was placed at the bottom of the pile. By altering the newlinequantities of cement and plaster of Paris, several combinations of pseudo-rock specimens were newlinedeveloped. UCS experiments were performed on samples to assess the influence of strength on newlineskin friction. Shear characteristics of pseudo-rock samples were also calculated. Research newlineresults demonstrate that the load-displacement curve is nonlinear. An analytical connection is newlinedeveloped with pseudo-rocks compressive strength and highest skin friction generated in pile. newlineA strong connection is shown between the laboratory findings and the findings attained by newlineapplying empirical equations recommended by other researchers. Also, pseudo-rock, sand bed newlineand piles were numerically modeled using PLAXIS 3D. Triaxial tests on sand samples were newlineused to determine soil properties, whereas laboratory tests were used to estimate pile newlineparameters. By adding interface elements across the soil and the pile, the influence of soil-pile newlineinteraction has been assessed. A several parametric investigations are conducted by modifying newlinethe pile arrangements, and the system output are compared with experimental results. newline