This thesis reports the formulation and implementation of a finite element model, which is based on the so called Hybrid Stress Finite Element Method. The proposed formulation is based on stress as the primary unknown and is radically different from displacement-based finite element models. / Among the special features of the model are the casting of the element stiffness equations in terms of local rather than global coordinate system, the use of the active column method known as the "Skyline technique for the solution of equilibrium equations", and the use of fast and efficient mesh generation and alteration routines developed specially for geotechnical applications. / Verification tests carried out on problems in elasticity with closed form solutions show that the proposed method is accurate and that it requires relatively fewer elements than displacement-based finite element method to achieve the same accuracy. Results of case history studies done on two mine design problems matched those from other numerical modelling procedures within acceptable limits and showed that the proposed method can be used to solve geomechanics problems efficiently and realistically.
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:QMM.74234 |
| Date | January 1989 |
| Creators | Momoh, Osman Aliu |
| Publisher | McGill University |
| Source Sets | Library and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada |
| Language | English |
| Detected Language | English |
| Type | Electronic Thesis or Dissertation |
| Format | application/pdf |
| Coverage | Doctor of Philosophy (Department of Mining and Metallurgical Engineering.) |
| Rights | All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated. |
| Relation | alephsysno: 000969426, proquestno: AAINL57245, Theses scanned by UMI/ProQuest. |
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