Role of Acoustic Emission for Solving Rock Engineering Problems in Indonesian Underground Mining |
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| Authors: | Suseno Kramadibrata Ganda Marihot Simangunsong Kikuo Matsui Hideki Shimada |
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| Institution: | (1) Department of Mining Engineering, Faculty of Mining and Petroleum Engineering, Institute Technology of Bandung, Jl. Ganesa No. 10, Bandung, 40132, Indonesia;(2) Earth Resources Engineering Department, Kyushu University, Fukuoka, Japan |
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| Abstract: | In situ stress measurement is not well accepted yet in Indonesia due to the unavailability of technology, high costs and because
it is impractical in remote regions. Alternatively, the Kaiser effect of acoustic emission (AE) can be used as a method for
determining the stress-state at depth, without creating induced stress and is practical in remote areas. This paper is focused
on the development of the AE test. The research has started to study the phenomenon of stress memory in a rock sample, the
factors influencing the phenomenon, and finally, to determine the in situ stresses around underground excavations by applying
the AE method. It is expected that knowledge in gaining the most important input parameters for maintaining the stability
of underground excavations can be well understood and be reliably conducted at a reasonable cost. |
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