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Three-dimensional finite element analysis of opening interaction in squeezing ground (2010)
Conference Proceeding
Birchall, T., & Osman, A. (2010). Three-dimensional finite element analysis of opening interaction in squeezing ground.

This paper presents a numerical study of the interaction of twin, horizontally aligned openings, deeply embedded in salt rock. Complex three-dimensional (3D) creep analyses were carried out using the Finite Element (FE) method. Findings show that ope... Read More about Three-dimensional finite element analysis of opening interaction in squeezing ground.

Numerical investigation of the behaviour of suction caissons in structured clays (2010)
Conference Proceeding
Panayides, S., Rouainia, M., & Osman, A. (2010). Numerical investigation of the behaviour of suction caissons in structured clays. In S. Gourvenec, & D. White. (Eds.), Frontiers in offshore geotechnics II (759-764). https://doi.org/10.1201/b10132-109

This paper investigates the ultimate capacity of suction anchor foundations, using an advanced constitutive model. The paper explores the effect of changing the aspect ratio of the caisson on the undrained load-carrying capacity of the bucket foundat... Read More about Numerical investigation of the behaviour of suction caissons in structured clays.

Dynamic response of a laterally-loaded infinite rigid cylinder embedded in a saturated poroelastic medium (2010)
Conference Proceeding
Osman, A., & Hussein, M. (2010). Dynamic response of a laterally-loaded infinite rigid cylinder embedded in a saturated poroelastic medium. In W. Tizani (Ed.), Proceedings of 13th International Conference on Computing in Civil and Building Engineering (ICCBE 2010) and the 17th International EG-ICE Workshop on Intelligent Computing in Engineering (ICE10), Nottingham, UK, 30 June - 2 July 2010

In this paper, an analytical solution for the response of a rigid cylinder embedded in a full-space poroelastic medium subjected to a dynamic lateral load is derived. The problem is idealised as a two-dimensional problem. The solution is obtained usi... Read More about Dynamic response of a laterally-loaded infinite rigid cylinder embedded in a saturated poroelastic medium.

Phosphorus removal from waste waters using basic oxygen slag (2009)
Journal Article
Bowden, L., Jarvis, A., Younger, P., & Johnson, K. (2009). Phosphorus removal from waste waters using basic oxygen slag. Environmental Science and Technology, 43(7), 2476-2481. https://doi.org/10.1021/es801626d

Few studies have characterized reactive media for phosphorus (P) removal in passive treatment systems in terms of both batch and continuous flow experiments. This study uses basic oxygen steel slag (BOS) from a U.K. feedstock. Batch experiments demon... Read More about Phosphorus removal from waste waters using basic oxygen slag.

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.

On the kinematics of 2D tunnel collapse in undrained clay (2006)
Journal Article
Osman, A., Mair, R., & Bolton, M. (2006). On the kinematics of 2D tunnel collapse in undrained clay. Géotechnique, 56(9), 585-595. https://doi.org/10.1680/geot.2006.56.9.585

A kinematic plastic solution has been developed for ground movements around a shallow, unlined tunnel embedded within an undrained clay layer. In this solution, the pattern of deformation around the tunnel is idealised by a simple plastic deformation... Read More about On the kinematics of 2D tunnel collapse in undrained clay.

Predicting 2D ground movements around tunnels in undrained clay (2006)
Journal Article
Osman, A., Bolton, M., & Mair, R. (2006). Predicting 2D ground movements around tunnels in undrained clay. Géotechnique, 56(9), 597-604. https://doi.org/10.1680/geot.2006.56.9.597

A new analytical method is introduced for calculating displacements due to tunnelling. This is conceived within the framework of the bound theorems of plasticity, but allowing for soil strain-hardening. The ground displacements due to tunnelling are... Read More about Predicting 2D ground movements around tunnels in undrained clay.

Manganese removal from mine waters - investigating the occurrence and importance of manganese carbonates (2006)
Journal Article
Bamforth, S., Manning, D., Singleton, I., Younger, P., & Johnson, K. (2006). Manganese removal from mine waters - investigating the occurrence and importance of manganese carbonates. Applied Geochemistry, 21(8), 1274-1287. https://doi.org/10.1016/j.apgeochem.2006.06.004

Manganese is a common contaminant of mine water and other waste waters. Due to its high solubility over a wide pH range, it is notoriously difficult to remove from contaminated waters. Previous systems that effectively remove Mn from mine waters have... Read More about Manganese removal from mine waters - investigating the occurrence and importance of manganese carbonates.

The co-treatment of sewage and mine waters in aerobic wetlands (2006)
Journal Article
Johnson, K., & Younger, P. (2006). The co-treatment of sewage and mine waters in aerobic wetlands. Engineering Geology, 85(1-2), 53-61. https://doi.org/10.1016/j.enggeo.2005.09.026

trial aerobic wetland in NE England is the first passive system ever designed to treat both a polluted mine water and a secondary sewage effluent. Both of these discharges currently enter a small third-order stream (the River Team), significantly deg... Read More about The co-treatment of sewage and mine waters in aerobic wetlands.