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A new classification system for evaluating rock penetrability
School of Mining Engineering, Petroleum and Geophysics, Shahrood University of Technology.
Shahrood University of Technology, Faculty of Mining, Petroleum & Geophysics, Shahrood University of Technology, School of Mining Engineering, Petroleum and Geophysics, Shahrood University of Technology.
Faculty of Mining Engineering and Metallurgy, Amirkabir University of Technology, Tehran.
2009 (English)In: International Journal of Rock Mechanics And Mining Sciences, ISSN 1365-1609, E-ISSN 1873-4545, Vol. 46, no 8, p. 1329-1340Article in journal (Refereed) Published
Abstract [en]

This paper presents a new classification system called the Rock Penetrability index (RPi). An evaluation model based on the fuzzy Delphi analytic hierarchy process (FDAHP) has been used for estimation of penetrability and drillability of rocks. For this purpose, five parameters of the rock material, including uniaxial compressive strength, Schimazek's F-abrasivity, mean Moh's hardness, texture and grain size and Young's modulus have been investigated and rated. In the RPi system, a number from 10.25 to 100 can be assigned to each rock, with higher values corresponding to greater ease of drilling and penetration into rock. Based on the RPi classification, rocks are classified into five modes from the view point of penetrability: very poor, poor, medium, good and very good

Place, publisher, year, edition, pages
2009. Vol. 46, no 8, p. 1329-1340
National Category
Other Civil Engineering
Research subject
Operation and Maintenance
Identifiers
URN: urn:nbn:se:ltu:diva-5948DOI: 10.1016/j.ijrmms.2009.07.002Local ID: 423e8251-5e88-449f-81cd-c2c45c5ef694OAI: oai:DiVA.org:ltu-5948DiVA: diva2:978824
Note
Upprättat; 2009; 20160707 (andbra)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-11-24Bibliographically approved

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