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Role of acoustic emission for solving rock engineering problems in indonesian Underground Mining
Kramadibrata S.a, Simangunsong G.M.a, Matsui K.b, Shimada H.b
a Department of Mining Engineering, Faculty of Mining and Petroleum Engineering, Institute Technology of Bandung, Indonesia
b Earth Resources Engineering Department, Kyushu University, Japan
[vc_row][vc_column][vc_row_inner][vc_column_inner][vc_separator css=”.vc_custom_1624529070653{padding-top: 30px !important;padding-bottom: 30px !important;}”][/vc_column_inner][/vc_row_inner][vc_row_inner layout=”boxed”][vc_column_inner width=”3/4″ css=”.vc_custom_1624695412187{border-right-width: 1px !important;border-right-color: #dddddd !important;border-right-style: solid !important;border-radius: 1px !important;}”][vc_empty_space][megatron_heading title=”Abstract” size=”size-sm” text_align=”text-left”][vc_column_text]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. © The Author(s) 2010.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Author keywords” size=”size-sm” text_align=”text-left”][vc_column_text]High costs,In situ stress,In-situ stress measurement,Indonesia,Induced stress,Input parameter,Kaiser effect,Remote areas,Remote regions,Rock engineering,Rock sample,Underground excavation,Underground mining[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Indexed keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Acoustic emission,In situ stress,Kaiser effect,Stress memory[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Funding details” size=”size-sm” text_align=”text-left”][vc_column_text]Acknowledgements are due to students who did the serial tests of the acoustic emission and Mr. Sudibyo, Mr. Iwan and Mr. Suparman the technicians of the Laboratory of Geomechanics and Mine Equipment of Department of Mining Engineering (DME), Faculty of Mining and Petroleum Engineering (FMPE) of ITB who were greatly involved in this research project. The Indonesian authors would also like to thank Prof. K. Matsui from Kyushu University Japan and his colleagues for their donation of the acoustic emission equipment set and MISTRAS 2001 to the Laboratory of Geomechanics and Mine Equipment of the DME of the FMPE of ITB. The first author also owes thanks to Dr. Seto who exposed to an intensive research on the use of the AE method. It is also important to note that some of the preliminary and intermediate serial tests were funded by Asahi Glass Foundation 2001 and 2006 ITB Research Grant for Hydraulic Fracturing and Acoustic Emission Tests for Determining In situ Stress, respectively. Last but not least, the authors would like to express their gratitude to the Staff of Pongkor Underground Gold Mine. Without their support, this research would not be possible.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”DOI” size=”size-sm” text_align=”text-left”][vc_column_text]https://doi.org/10.1007/s00603-010-0125-2[/vc_column_text][/vc_column_inner][vc_column_inner width=”1/4″][vc_column_text]Widget Plumx[/vc_column_text][/vc_column_inner][/vc_row_inner][/vc_column][/vc_row][vc_row][vc_column][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][/vc_column][/vc_row]