EFFECT OF CHANGE OF LENGTH ON SKIN FRICTION OF PILES

Abstract

Tall buildings play a key role in current urban strategies and regeneration. Development of these building presents several problems related to the design and assessment of pile foundations. Among these combinations of vertical, lateral and torsional forces to the piles due to the eccentricity of wind action on vertical projections of multistoried tall buildings is of particular interest. . Torsional forces are also acting on the pile and IS 2911 for pile foundation has not been considered torsional forces for pile designing but it should be considered. Therefore, objectives of the present work are: (1) Mechanism of applying torque to piles. (2) Experimentally to examine basic pile soil interactions in the modal pile subjected to torque in the context of study of torque Vs angle of twist. A mechanism of applying torque to a single pile was thought upon and worked out accordingly. Experiments on single pile were performed. Torque on a single pile was applied using the above said mechanism. Experiments were performed by increasing the embedded depth of a modal pile. When we increased the embedded depth of pile at regular intervals with the different torques for increasing angle of twist till the failure angle of twist is achieved.