Experimental investigation of stress distribution of vertically loaded short displacement pile in cohesion-less soil

Abstract

One can find lot of the methods and theories to determine and interpret the nature of the bearing capacity of displacement piles in cohesion-less soil. The presence of many methods leads to the variety of results and yields that no general and relevant methods have been proposed yet. Many experimental investigations do not fit properly the results of known numerical simulations. These simulations yield that the shear stress near the end of the pile increases significantly, when compared with the rest of pile length. Current investigation presents the specific test results of the short displacement pile under vertical load in cohesion-less soil. The full scale test was performed and the vertical stresses beneath base and shear stresses along the pile have been measured, as a result the shear stress significant increase near the end of the pile was observed. The obtained results can be used for developing the shaft and tip bearing capacity evaluation method for the short displacement piles in cohesion-less soil.