Double shield TBM performance analysis in difficult ground conditions: a case study in the Gerede water tunnel, Turkey

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• 作者：Aydin Shaterpour-Mamaghani ; Deniz Tumac…
• 关键词：TBM ; Tunnel excavation ; Machine utilization time ; Excavation performance
• 刊名：Bulletin of Engineering Geology and the Environment
• 出版年：2016
• 出版时间：February 2016
• 年：2016
• 卷：75
• 期：1
• 页码：251-262
• 全文大小：2,787 KB
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• 作者单位：Aydin Shaterpour-Mamaghani (1)
  Deniz Tumac (1)
  Emre Avunduk (1)
  
  1. Mining Engineering Department, Istanbul Technical University, Maslak, Istanbul, Turkey
  
• 刊物类别：Earth and Environmental Science
• 刊物主题：Earth sciences
  Applied Geosciences
  Structural Foundations and Hydraulic Engineering
  Geoecology and Natural Processes
  Nature Conservation
  
• 出版者：Springer Berlin / Heidelberg
• ISSN：1435-9537

文摘

The performance analysis of double shield TBMs in difficult ground conditions in the Gerede tunnel is presented in this study. The strength of the encountered formations along the tunnel route varied from medium strength (sandstone, limestone) to high strength (basalt). The total length of tunnels is 31.6 km, which was excavated by three double shield TBMs having diameter of 5.57 m. Literature studies are first carried out in order to review the difficult ground conditions and their impacts on mechanized tunnelling. Later, the project, geology, and the characteristics of the TBMs are given in detail. Then the factors affecting the performance of the TBMs, machine utilization, and operational parameters (torque, thrust) are discussed in detail. In the light of these facts, the main objective of this study is to describe the possible improvement methods to reduce the effect of these difficulties on TBM performance. Keywords TBM Tunnel excavation Machine utilization time Excavation performance