Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 3 of 3 for “"unstable failure"”.
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Investigation of unstable failure in underground coal mining using the discrete element method
Unstable failure in underground coal mining is the sudden and violent ejection of coal from mine walls and pillars into the mine opening. This thesis demonstrates the use of the discrete element method to simulate stable and unstable modes of compressive failure of a western U.S. coal. Two discrete …
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Study of unstable rock failures using finite difference and discrete element methods, A
… into the working areas of the mine. These unstable failures have resulted in large losses of life and collapses of entire mine panels. Modern mining operations take significant steps to reduce the likelihood of unstable failure, however eliminating their occurrence is difficult in practice. …
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Shear Fracture Growth in Granular Rocks and Porosity-Permeability Relationships in Mudstones
… micromechanical response of granular rocks to unstable failure. Calibrated granular models of sandstone and granite are subjected to biaxial experiments under confining pressures of 0–50 MPa, leading to the development of shear fractures through interaction of emergent microcracks occurring in …