The Master’s Thesis was discussed in the Faculty of Engineering, University of Kufa, entitled: “Improving of Problematic Soil Using Nano-materials” for the student Ali Rafi Duaibel from the Department of Civil Engineering, majoring in the Geotechnical Engineering.
This research presented a new method to improve the lateral behavior of the individual pile embedded in sandy soils using silica oxide nanoparticles. The discussion committee was composed of: Assistant Professor Dr. Muhammad Hussein Kazim from the College of Engineering, Al-Mustansiriya University, Assistant Professor Dr. Mohammed Kadum Fakhraldin from the Faculty of Engineering, University of Kufa, Assistant Professor Basim Abbas Jabbar from the College of Engineering, Al-Muthanna University as a member, and Prof. Dr. Laith Jawad Aziz from Faculty of Engineering, University of Kufa, member and supervisor.
The supervisor indicated the use of small-scale model tests with many percentages of silica nanomaterials (0, 0.3, and 0.6%) in different locations around the pile such as in front of the pile face or at a distance of 10 mm from the pile face and along the front or behind the pile additionally for a case of untreated soil. The nano-silica material is placed in a steel box model in the form of a drawing plane. The results obtained are presented as a relationship between the applied lateral load with horizontal and vertical displacement and rotation.
The researcher demonstrated the result of the experimental work by comparing some of the current results (the maximum lateral load of the pile when the untreated soil) with those published by other researchers. He explained that the result he obtained is in good agreement with Hansen (1961). It was concluded that the ideal proportion of soil improvement by silica oxide nanoparticles was at (0.6) %; Because this ratio gave the highest lateral load than those other ratios in the same lateral and vertical displacement. This is because nanoparticles are present in the soil which improves soil strength by improving contact between soil particles with nanoparticles and filling the spaces between soil particles with nanoparticles.