COASTAL GEOTECHNICAL PROPERTIES AND - PILLING FOUNDATION DESIGN, AREA BETWEEN PORT — SUDAN AND SAUKIN RED SEA, SUDAN

Abstract

A combination studies had been done to put the area under investigation in focus for the future population pressure and economical development activities in engineering planning view. All the data was processed by Rock Ware 2002 , 2004 and Auto Cad in 2D, 3D models. This study including very important infonnations about the area such as geomorphologic features, hydrological process and marine conditions. The geological setting shows different geological environments such as sabkhas, salt marshes and transitional zone between land and marine environments. Coral reef, shoreline configuration and continental shelf were studying from a geological point of view included onshore sites. Stratigraphically, Port-Sudan region consist of four layers, Dama Dama two layers and Saukin characterized by unhomogenatic stratigraphical formation. Two facies forming the stratigraphy sequences on the continental shelf which are residual soil and coral reef limestone. The later one was classified in all sites by weathering grade. The study shows that the area is rich in raw building materials which characterized by good chemical, physical and geotechnical specifications. Sand, gravel, building stones and carbonate limestone were tested for grain size distribution, densities, Califomia bearing capacity, aggregate test, crushing value, impact value, point load and unconfined compressive strength. The geochemical analysis of subsurface soils and intruded sea water covered all the hazardous cations and anions and clarified the interaction between them.