Abstract

Researched the strength, deformation, sudden settlement by water of the surface soil layer. Discussed about the ground base on a structure model. Applied for planning, calculating design and foundation in the Vietnam National University - Hochiminh City at Thu Duc district. Carried out to test the basic geotechnical properties and the special tests such as in situ compression and oedometer tests with unsaturation and saturation; monitored deformation, and changes of cohesion, C (kgf/cm2), friction angl , φ (d gr ) in various conditions ith the time. Analysed the structure of soil under the microscope. Built the ground structure model base on the surveied data.