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https://hdl.handle.net/11499/7165
Title: | Utilizing rock mass properties for predicting TBM performance in hard rock condition | Authors: | Yağız, Saffet | Keywords: | BTS Discontinuity TBM Toughness UCS Boring Boring machines (machine tools) Brittleness Rocks Statistical methods Tensile strength Tunneling machines Rock mass properties Rock tunnel Tunnel-boring machine (TBM) Tunnels compressive strength hard rock rock mass classification rock mechanics rock property |
Abstract: | The key parameters on the estimation of tunnel-boring machine (TBM) performance are rock strength, toughness, discontinuity in rock mass, type of TBM and its specifications. The aim of this study is to both assess the influence of rock mass properties on TBM performance and construct a new empirical equation for estimation of the TBM performance. To achieve this aim, the database composed of actual measured TBM penetration rate and rock properties (i.e., uniaxial compressive strength, Brazilian tensile strength, rock brittleness/toughness, distance between planes of weakness, and orientation of discontinuities in rock mass) were established using the data collected from one hard rock TBM tunnel (the Queens Water Tunnel # 3, Stage 2) about 7.5 km long, New York City, USA. Intact rock properties were obtained from laboratory studies conducted at the Earth Mechanics Institute (EMI) in the Colorado School of Mines, CO, USA. Based on generated database, the statistical analyses were performed between available rock properties and measured TBM data in the field. The result revealed that rock mass properties have strong affect on TBM performance. It is concluded that TBM performance could be estimated as a function of rock properties utilizing new equation (r = 0.82). © 2007 Elsevier Ltd. All rights reserved. | URI: | https://hdl.handle.net/11499/7165 https://doi.org/10.1016/j.tust.2007.04.011 |
ISSN: | 0886-7798 |
Appears in Collections: | Mühendislik Fakültesi Koleksiyonu Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection |
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