ADDIS ABABA INSTITUTE OF TECHNOLOGY SCHOOL OF GRADUATE STUDIES Numerical Investigation on the Behaviour of Laterally Loaded Pile Embedded in Layered Soils of Addis Ababa by Fenta Nebiyou Mekonnen A Thesis Submitted to School of Graduate Studies in Partial Fulfillment of the Requirement for Degree of Master of Science in Geotechnical Engineering Advisor Dr.–Ing. Henok Fikre Assistant Professor of Civil Engineering Addis Ababa University October, 2019 Addis Ababa, Ethiopia