ABSTRACT:

The design of a ground support system must be sufficiently robust to hold, retain, and reinforce the excavations throughout its service life. The operational, geological, and geomechanical properties of the surrounding rockmass are known to impact the short- and long-term behavior of ground support systems, yet these impacts have not been fully quantified. In order to quantitatively assess the influence of various parameters on increased demand on ground support elements, a large database was created that collates historical rock support information: type, installation date, and behavior over time of an entire mine sector (18.5 km of drift). Findings demonstrated that the excavation span, rock quality designation surrounding the excavation, and the excavation orientation relative to the foliation appear to be the critical factors controlling the demand on ground support elements.

Keywords:
metals & mining, analysis tool, proceedings, reservoir geomechanics, standard design, Upstream Oil & Gas, loading capacity, database, ground support element, degradation level
Subjects:
Reservoir Characterization, Reservoir geomechanics
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2019. American Rock Mechanics Association
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