GEOELECTRICAL AND SEISMIC STUDIES ON EL SHURUQ CITY, EGYPT

Abstract

The main purpose of this thesis is to study some geophysical details about the bedrock foundations to determine the risk zone in the area of El-Shuruq city. The aim of Egyptian government is to construct new cities inside the desert to overcome the population in the old cities. The suggested locations need some studies, like: geological, electrical, shallow seismic refraction and geotechnical studies. These studies aim to determine the geotechnical properties and their reliability for the best foundation purposes of soil materials. The link between geophysical studies and civil engineering projects depends mainly upon material competence, thickness of the weathered layer and nature of the bedrock foundations. The most important problems that may affect the stability of the city are the swells in the claystone beds, which are found in the subsurface and resist the settlement of building above it. If they are saturated or wet. The study area is located in the area between Cairo-lsmailia road and Cairo Suez road which lies between longitudes 31° 361 and 31o 391 E and latitudes 30° 051 and 30° 111 N. The area consists of rocks related to Miocene deposits which are of shales and fossiliferous calcareous sandstone and limestone. The topography ranges between 120 to 230 m and slopes iri main direction NW-SE. It is a part ofHeliopolis basin.