Comparison of two newly developed TBM performance prediction models in hard rock

Jafar Hassanpour, Jian Zhao, Jamal Rostami, Mashalah Khamehchiyan

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In this paper two new TBM performance prediction models of Gong and Zhao (2009) and Hassanpour et al. (2011), which have been developed by the referenced authors in two separate studies in Iran and Singapore, are introduced and compared. These models have some similarities in developing method and input and output parameters. Both models propose simple equations for predicting Field Penetration Index or FPI (kN/cutter/mm/rev) based on basic rock mass parameters like UCS, RQD, Jv, brittleness index and a (angle between tunnel axis and discontinuity plane). Results of the comparisons show that output parameters obtained from these two models coincide and they can be merged to develop a more comprehensive model with wider application.

Original languageEnglish
Title of host publication2012 Proceedings - North American Tunneling, NAT 2012
PublisherSociety for Mining, Metallurgy, and Exploration
Number of pages8
ISBN (Print)9780873353618
Publication statusPublished - 2012
Externally publishedYes
EventNorth American Tunneling Conference (NAT) 2012 - Indianapolis, United States of America
Duration: 24 Jun 201227 Jun 2012


ConferenceNorth American Tunneling Conference (NAT) 2012
Abbreviated titleNAT 2012
CountryUnited States of America
Internet address

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