الفهرس 
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Abstract
Implementation of limit state design in the geotechnical design in Egypt has become mandatory and essential due to the inconsistency and the confusion that may arise from the incompatible design philosophies for substructures and superstructures in the Egyptian practice. Rational calibration procedures to calibrate reduction factors and partial safety factors were investigated to be used with limit state design of axially loaded single piles. The calibration process was conducted via applying calibration-by-fitting technique aiming to obtain design estimates from limit state design quite close to that obtained from traditional philosophy of working stress design. Both factored resistance approach, i.e., Load and Resistance Factor Design (LRFD), and factored strength approach were utilized throughout the calibration of the reduction factors and the partial safety factors, respectively.
This thesis is organized in five chapters. The contents of each chapter can be summarized as follows:
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Chapter (1): This chapter provides a brief description of the problem, objectives of the study and thesis organization.
Chapter (2): The second chapter of this thesis provides main differences between the two design philosophies of working stress design and limit state design regarding the geotechnical engineering design problems. A review of literature relevant to the limit state design in geotechnical engineering is also provided in Chapter (2), and different approaches that can be employed for geotechnical limit state designs are also illustrated.
Chapter (3): This chapter provides a rational procedure to calibrate reduction factors for total pile resistance and pile side and base resistances to be used in the LSD, focusing on application to design axially loaded single piles. The calibration of the resistance reduction factors is achieved via applying calibration-by-fitting technique. In this chapter, reduction factors for pile resistances are calibrated using the factored strength approach, i.e., Load and Resistance Factor Design (LRFD).
Chapter (4): In this chapter, a rational procedure is provided to calibrate partial safety factors for soil strength parameters to be used with the static equation for limit state design of axially loaded single piles. The partial safety factors for soil strength parameter are calibrated via applying calibration-by-fitting technique and using the factored strength approach.
Chapter (5): This chapter presents the summary, conclusions of this research and recommendations for future researches concerning this topic