فراس عبد الهادي عبد الله الطفيلي

The present study examines the effect of cavities on the pipe pile foundation settlement and capacity subjected to compressive axial loads and embedded in sandy soil. By inserting a prototype of cavity which is placed adjacent to the pile at different locations that lie at horizontal spacing between pile and cavity center to center defined by (X) and cavity depth from the soil surface by cavity depth (Y), the variation in cavity location was studied for all laboratory tests. The presence of cavity reduces the pile load capacity by different rates depending on its location. In group piles with of L/D = 15 with cavity at Y/L = 1 and X/D = 1.5, 2.5, the reduction is between (6.1% to 26%).