Effect of Soil Type and Footing Rigidity on the Behavior of Nuclear Power Plants Foundation.

Document Type : Research Studies

Authors

1 B.sc. of Civil Engineering, Faculty of Engineering, Mansoura University

2 Assc. Prof. of Geotechnical Engineering, Faculty of Engineering, Mansoura University

3 Professor of Geotechnical Engineering, Faculty of Engineering, Mansoura University

Abstract

Nuclear power plants are very special structures as a result of their function and their applied loads. Egypt is tending to construct a nuclear power plant contains 4 reactors in Daba’a –north Egypt- to generate electric power. This reactor is the new generation of European reactors which is designed according to British standards. This generation differs from the previous one in the thickness of raft footing. Rock soil is studied as bed rock in this search taking into consideration all soil parameters using 3D model for soil and structure with real dimensions and shape of raft footing in plane. Using (Drucker-Prager) model for soil structure interaction to compute all stresses, strains, and displacements in soil and raft footing after the focus on rock soil due to the existence of different of rock with different strength and cohesion assuming that no fractures, faults, synclines, and anticlines in the bed rock. The raft footing rigidity factors both footing thickness and concrete characteristic strength was analyzed. And finally results present the best suitable conditions for construction of such structure without any problem in soil and raft footing.     

Main Subjects