Double-Shield TBM Performance Analysis in Clay Formation: A Case Study in Iran
The Konjancham conveyance tunnel is a part of the tropical water conveyance plan that is designed to transfer water to both Kermanshah and Ilam provinces in Iran. The second part of this tunnel (KT-2) is a 12 kilometers long with a diameter of 5.56 meters that is being bored using a double-shield TBM (DS-TBM) machine. The tunnel is excavated in both Aghajari and Lahbari formations, including claystone, siltstone, and sandstone. In this study, an overview of the basics of the project, including geology, engineering geology, hydrogeology, as well as the characteristics of the tunnel and the TBM, have been reviewed, firstly. Then, the field performance of the TBM is analyzed by focusing on the geological conditions and the functional parameters of the machine such as thrust force and RPM. Finally, the wear of the disc cutters was analyzed as one of the important issues in the boring process.
M. Fallahpour et al., "Double-Shield TBM Performance Analysis in Clay Formation: A Case Study in Iran," Tunnels and Underground Cities: Engineering and Innovation meet Archaeology, Architecture and Art -- Proceedings of the WTC 2019 ITA-AITES World Tunnel Congress, pp. 795-804, CRC Press/Balkema, May 2019.
The definitive version is available at https://doi.org/10.1201/9780429424441-84
World Tunnel Congress, WTC 2019 and the 45th General Assembly of the International Tunnelling and Underground Space Association, ITA-AITES 2019 (2019: May 3-9, Naples, Italy)
Keywords and Phrases
Groundwater; Hydrogeology; Office buildings; Tunneling (excavation), Boring process; Clay formation; Double shield TBM; Field performance; Functional parameters; Geological conditions; Performance analysis; Tropical waters, Tunnels
International Standard Book Number (ISBN)
Article - Conference proceedings
© 2019 CRC Press/Balkema, All rights reserved.
01 May 2019