Defining in-situ block size.

Abstract The presence, size, orientation, nature, and persistence of geological discontinuities dictate the behaviour of a rock mass. Block size, which is defined by discontinuity spacing, by the number of joint sets, and by the persistence of the discontinuities delineating potential blocks is an important indicator of the degree of fracturing of a rock mass. Consequently, block size is represented either explicitly or implicitly in all rock mass classification systems employed for analysis and design of surface and underground mining structures. In-situ block size distributions may provide a better means to describe the structural complexity of a rock mass. These are the distributions that would be derived if the in-situ rock mass was separated into its constitutive blocks, delineated by existing discontinuities, and each block measured. This paper presents the results of a field campaign at Louvicourt Mine aiming to characterize the rock mass using different methods for determining block size and block size distributions.
Keywords: Rock mechanics, Rock mass characterization, Block size.
Full Access to Technical Paper
PDF version for $20.00
Search
Sort By:  Relevance
Showing results 1 - 2
Text
Summary: The instrumentation and monitoring of rock behaviour have played an important and necessary role in the practice of potash, rocksalt, gypsum, trona and coal mining. The art of rock instrumentation applied to soft rock and coal mining has progressively evolved over the past years and will surely continue to advance at a faster pace in the future as a result of the technological revolution we experience today. The development of sophisticated mine-wide data communications systems is being used...
Publication: CIM Bulletin
Author(s): E. De Souza
Keywords: Rock mechanics, Instrumentation, Monitoring, Soft rock mines, Coal mines.
Issue: 1020
Volume: 91
Year: 1998
Text
Summary: La connaissance des contraintes naturelles qui prévalent dans les massifs rocheux est un pré requis indispensable pour la conception sécuritaire et économique des excavations comme on en retrouve dans les exploitations minières souterraines. Certains chercheurs se sont attardés colliger les résultats de mesures de ces contraintes et les ont utilisés pour produire des modèles de prédiction basés sur leur traitement...
Publication: CIM Bulletin
Author(s): R. Corthésy, D.E. Gill, M.H. Leite
Keywords: Mécanique des roches, Contraintes in-situ.
Issue: 1020
Volume: 91
Year: 1998
Powered by Coveo Enterprise Search