Utilizing rock mass properties for predicting TBM performance in hard rock condition

被引：241

作者：

Yagiz, Saffet ^{[1
]}

机构：

[1] Pamukkale Univ, Fac Engn, Dept Geol Engn, TR-20020 Denizli, Turkey

来源：

TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY | 2008年 / 23卷 / 03期

关键词：

discontinuity; BTS; toughness; TBM; UCS;

D O I：

10.1016/j.tust.2007.04.011

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

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). (C) 2007 Elsevier Ltd. All rights reserved.

引用

页码：326 / 339

页数：14

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