Coal mine roof rating (CMRR), rock mass rating (RMR) and strata control: Carborough Downs Mine, Bowen Basin, Australia
Volume: 30, Issue: 2, Pages: 225 - 234
Published: Mar 1, 2020
Abstract
The rock mass rating (RMR) has been used across the geotechnical industry for half a century. In contrast, the coal mine roof rating (CMRR) was specifically introduced to underground coal mines two decades ago to link geological characterization with geotechnical risk mitigation. The premise of CMRR is that strength properties of mine roof rock are influenced by defects typical of coal measures stratigraphy. The CMRR has been used in longwall...
Paper Details
Title
Coal mine roof rating (CMRR), rock mass rating (RMR) and strata control: Carborough Downs Mine, Bowen Basin, Australia
Published Date
Mar 1, 2020
Volume
30
Issue
2
Pages
225 - 234
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