Skip to main content
Conference Proceedings

13th Australian Tunnelling Conference

Conference Proceedings

13th Australian Tunnelling Conference

PDF Add to cart

Impact of Rock Mass Characteristics on Hard Rock Tunnel Boring Machine Performance

While hard rock tunnel boring machines (TBMs) have an established track record in the tunnelling industry, accurate estimation of TBM performance for each specific project remains critical. Machine performance prediction is required to assist planning activities, including costing and schedule preparation, machine specification and effective planning of maintenance and repairs. In addition, monitoring machine performance during the construction period is required to assess and manage excavation progress, and to achieve optimal advance rates based on specific geotechnical conditions exposed during excavation. TBM performance analysis can also contribute to the development of more accurate performance prediction models for future applications._x000D_
Rock mass characteristics play a dominant role in machine performance. This paper offers a review of the impact of rock mass characteristics on TBM penetration rates for two specific tunnelling projects. A discussion is provided on the results of statistical analysis of available field data, including geological back mapping, rock properties and measured rates of penetration (ROP). The analysis offers a comparison of the achieved and predicted ROPs to provide a better understanding of the influence of rock mass properties on the performance of hard rock TBMs. A new rock mass adjustment factor is introduced to enhance the accuracy of an existing prognosis model for use in jointed rock masses.
Return to parent product
  • Impact of Rock Mass Characteristics on Hard Rock Tunnel Boring Machine Performance
    PDF
    This product is exclusive to Digital library subscription
  • Impact of Rock Mass Characteristics on Hard Rock Tunnel Boring Machine Performance
    PDF
    Normal price $22.00
    Member price from $0.00
    Add to cart

    Fees above are GST inclusive

PD Hours
Approved activity
  • Published: 2008
  • PDF Size: 0.309 Mb.
  • Unique ID: P200803030

Our site uses cookies

We use these to improve your browser experience. By continuing to use the website you agree to the use of cookies.