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Volume Title: ICASGE2023

DOI: ICASGE-GEO

Naema Ali

Department of Civil Engineering, Faculty of Engineering, Pharos University in Alexandria, Egypt

Population growth has led to rapid urbanization that requires expansion of civil engineering infrastructures and the associated services. In Egypt, different types of problematic soils are extensively found in many areas and it is virtually impossible to avoid construction on such soil. In this research, some studies of dry granular soil in some construction areas in the new administrative capital of Egypt in the Eastern Desert were examined to study the extent of its susceptibility to collapse. This research investigates the effect of soaking process on the settlement behavior of Sandy/ Gravelly with fines soil in new capital in Egypt. Since dry mass groups exist of granular soil, gravel and sand, should be necessary studied under varying in its moister content due to inundation. Visual inspection of the mass samples shows that the soil susceptibility to collapse and indicate strength reduction under wetting and disasters caused by disturbances. Whereas the components, properties, and bonding patterns connecting soil particles as well as the forces between particles can explain why these soils collapse? Soil monitoring shows that the pores provide main space for collapse and also, the hydration swelling of clay cementation is one of the main causes for particle movement and collapse.

Collapsible Soil; sedimentation mechanism; granular soil Collapsibility properties; Hydro-collapsibility

Geotechnical Engineering (GEO)