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Fuzzy analytical hierarchy process approach for ranking the sawability of carbonate rock
Shahrood University of Technology, Faculty of Mining, Petroleum & Geophysics, Shahrood University of Technology.
Department of Mining and Metallurgy Engineering, Urmia University of Technology, Faculty of Mining, Petroleum and Geophysics, Shahrood University of Technolog.
Faculty of Mining, Petroleum and Geophysics, Shahrood University of Technolog.
Department of Mining, Shahrood Branch, Islamic Azad University, Shahrood.
2012 (English)In: International Journal of Rock Mechanics And Mining Sciences, ISSN 1365-1609, E-ISSN 1873-4545, Vol. 50, p. 83-93Article in journal (Refereed) Published
Abstract [en]

A new classification system is presented to evaluate and ranking the sawability of carbonate rock. The sawability of carbonate rock is classified into five categories: excellent, good, fair, poor and very poor. The sawability is assumed to depend on the uniaxial compressive strength, Young's modulus, Mohs hardness, and a new abrasivity index. The FAHP approach is used to determine the weights of the above-mentioned parameters by decision makers. Moreover, in this paper, a new classification system was developed to modify Schimazek's F-abrasiveness factor. In this new abrasivity classification, each parameter has a different importance coefficient. The new abrasivity index of carbonate rocks can be obtained from this new abrasivity classification system. The calculated sawability index of developed classification is applied for Iranian carbonate rocks to evaluation the energy consumption in rock sawing process. A variety of two groups of carbonate rocks (seven types) were saw using a fully instrumented laboratory sawing rig at different feed rates, peripheral speeds, and depth of cut. Then, a new statistical model was obtained using multiple regression method based on operating parameters and rock sawability index

Place, publisher, year, edition, pages
2012. Vol. 50, p. 83-93
National Category
Other Civil Engineering
Research subject
Operation and Maintenance
Identifiers
URN: urn:nbn:se:ltu:diva-7100DOI: 10.1016/j.ijrmms.2011.12.002Local ID: 56b36900-8e16-44e6-91a9-2d607d8f81d9OAI: oai:DiVA.org:ltu-7100DiVA, id: diva2:979987
Note
Upprättat; 2012; 20160705 (andbra)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-11-24Bibliographically approved

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