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Professor Ashraf Osman's Outputs (4)

Modelling ground displacements around tunnels in clay (2007)
Presentation / Conference Contribution
Osman, A., Bolton, M., & Mair, R. (2007, December). Modelling ground displacements around tunnels in clay. Presented at the XIV European Conference on Soil Mechanics and Geotechnical Engineering, Madrid, Spain

2D and 3D upper bound solutions for tunnel excavation using 'elastic' flow fields (2007)
Journal Article
Klar, A., Osman, A., & Bolton, M. (2007). 2D and 3D upper bound solutions for tunnel excavation using 'elastic' flow fields. International Journal for Numerical and Analytical Methods in Geomechanics, 31(12), 1367-1374. https://doi.org/10.1002/nag.597

This paper presents 2D and 3D upper bound solutions for the problem of tunnel excavation in soft ground. The solution invokes the use of incompressible flow fields derived from the theory of elasticity and the concept of sinks and sources. Comparison... Read More about 2D and 3D upper bound solutions for tunnel excavation using 'elastic' flow fields.