Volume 73 Issue 12
Developing an empirical summation chart on the distribution of extension fractures in matured yielding pillars using geophysical technique
The understanding of yielding pillar behavior has been well documented in terms of pillar strength using numerical simulations and empirical formulas, but the understanding of how fracture propagates in a matured yielding pillar is not well established. A new empirical summation chart of fracture distribution along the matured yielding pillar is presented in this paper. The chart was developed using ground penetrating radar (GPR) supported by borescope observations, focusing on monitoring the distribution of extension fracture.
Mining, Metallurgy & Exploration (2021) 38:1955–1970, https://doi.org/10.1007/s42461-021-00459-y
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