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Rheological Characterisation of Foam-Conditioned Sands in EPB Tunneling

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Abstract

The flow behaviour of soil–foam mixtures, used as support medium in closed-mode tunnelling with Earth pressure balance shield machines, is an essential factor for the operation of the tunnel boring machine (TBM). On the one hand, a rather soft consistency is required providing a homogeneous face support pressure transfer to the tunnel face. High accuracy in face support regulation is crucial for settlement control, especially in sensitive environments, such as urban areas. On the other hand, a rather stiff consistency is preferable concerning transportation and disposal of the excavated ground to avoid additional treatments for landfilling, tipping or sewage management. So far, the flow behaviour of soil–foam mixtures has been investigated by index tests. Most notably, the slump test, known from concrete technology, is widely applied on soil–foam mixtures. However, flow is actually a non-static phenomenon and cannot be expressed by a single parameter, which is derived from an equilibrium-state condition at rest. This contribution focuses on the rheology of soil–foam mixtures aiming at a better understanding of the flow behaviour and of the influences the individual components have on it during the excavation process. Investigating the interaction between soil, water and foam provides optimisation strategies for the TBM performance.

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References

  1. Maidl U (1997) Aktive Stützdrucksteuerung bei Erddruckschilden. Bautechnik 6(74):376–380

    Google Scholar 

  2. Budach C, Thewes M (2015) Application ranges of EPB shields in coarse ground based on laboratory research. Tunn Undergr Sp Tech 50:296–304

    Article  Google Scholar 

  3. Galli M, Thewes M (2014) Investigations for the application of EPB shields in difficult grounds. Geomech Tunnelling 1(7):31–44

    Article  Google Scholar 

  4. Maidl U, Mahfuz Monteiro A, Comulada M, Foster J, Innovativer Hybridschildeinsatz in Rio de Janeiro: Erddruckschild mit alternativer Band/-Pumpförderung, Separieranlage auf dem Nachläufer, neuartiges Konditionierungskonzept, Forschung + Praxis, 2017; p 49

  5. Budach C (2012) Untersuchungen zum erweiterten Einsatz von Erddruckschilden in grobkörnigem Lockergestein. Shaker, Aachen

    Google Scholar 

  6. Maidl U Erweiterung der Einsatzbereiche der Erddruckschilde durch Bodenkonditionierung mit Schaum, Ph. Thesis D, Ruhr-Universität Bochum, 1995

  7. Quebaud S, Sibai M, Henry JP (1998) Use of chemical foam for improvements in drilling by earth-pressure balanced shields in granular soils. Tunn Undergr Sp Tech 2(13):173–180

    Article  Google Scholar 

  8. Borghi FX, Soil conditioning for pipe-jacking and tunnelling. Thesis PhD, University of Cambridge, 2006

  9. Peña Duarte M, Foam as a soil conditioner in tunnelling: physical and mechanical properties of conditioned sands, Thesis PhD, University of Cambridge, 2007

  10. Bezuijen A, Schaminée PEL Simulation of the EPB-shield TBM in model tests with foam as additive. In: Proceedings of the international symposium on modern tunneling science and technology, 2001; 157–263

  11. Borio L, Soil conditioning for cohesionless soils, Thesis PhD, Politecnico di Torino, 2010

  12. Peila D, Picchio A, Chieregato A (2013) Earth pressure balance tunnelling in rock masses: laboratory feasibility study of the conditioning process. Tunn Undergr Sp Tech 35:55–66

    Article  Google Scholar 

  13. Vinai R, A contribution to the study of soil conditioning techniques for EPB TBM applications in cohesionless soils, Thesis PhD, Politecnico di Torino, 2006

  14. Vennekötter J (2012) Separationsfreier Mikrotunnelbau durch Pumpförderung schaumkonditionierter Böden. Shaker, Aachen

    Google Scholar 

  15. DIN EN 12350-2, Testing fresh concrete—Part 2: slump-test Beuth, Berlin, 2009

    Google Scholar 

  16. Meng Q, Qu F, Li S (2011) Experimental investigation on viscoplastic parameters of conditioned sands in earth pressure balance shield tunnelling. J Mech Sci Technol 9(25):2259–2266

    Article  Google Scholar 

  17. Messerklinger S, Zumsteg R, Puzrin AM (2011) A new pressurized vane shear apparatus. Geotech Test J 2(34):1–10

    Google Scholar 

  18. Galli M (2016) Rheological characterisation of earth-pressure-balance (epb) support medium composed of non-cohesive soils and foam. Shaker, Aachen

    Google Scholar 

  19. EFNARC, Specification and Guidelines for the use of specialist products for Soft Ground Tunnelling, Farnham, Surrey, 2003

    Google Scholar 

  20. Schatzmann M, Rheometry for large particle fluids and debris flows, Doctoral Thesis, Eidgenössische Technische Hochschule ETH Zürich, 2005

  21. Schatzmann M, Bezzola GR, Minor HE, Windhab EJ, Fischer P (2009) Rheometry for large-particulated fluids: analysis of the ball measuring system and comparison to debris flow rheometry. Rheol Acta 7(48):715–733

    Article  Google Scholar 

  22. Tyrach J, “Rheologische Charakterisierung von zementären Baustoffsystemen”, Doctoral Thesis, Universität Nürnberg-Erlangen, 2000

  23. Müller M, Tyrach J, Brunn PO, Rheological characterization of machine-applied plasters, ZKG Int, 2000; (5)52, 252–258

  24. Murata J (1984) Flow and deformation of fresh concrete. Materiaux et Constr 98(74):117–129

    Article  Google Scholar 

  25. Clayton S, Grice TG, Boger DV Analysis of the slump test for on-site yield stress measurement of mineral suspensions. Int J Miner Process 2003; 1–4(70) 3–21

    Article  Google Scholar 

  26. Roussel N, Coussot P (2005) Fifty-cent rheometer for yield stress measurements: from slump to spreading flow. J Rheol 3(49):705–718

    Article  Google Scholar 

  27. Roussel N, Stefani C, Leroy R (2005) From mini-cone test to Abrams cone test: measurement of cement-based materials yield stress using slump tests. Cement Concr Res 5(35):817–822

    Article  Google Scholar 

  28. Flatt RJ, Larosa D, Roussel N (2006) Linking yield stress measurements: spread test versus Viskomat. Cement Concr Res 1(36):99–109

    Article  Google Scholar 

  29. Zumsteg R, Plötze M, Puzrin AM (2012) Effect of soil conditioners on the pressure and rate-dependent shear strength of different clays. J Geotech Geoenviron 9(138):1138–1146

    Article  Google Scholar 

  30. Galli M, Thewes M, Rheology of Foam-conditioned Sands in EPB Tunneling, In: Proceedings of the ITA World Tunnel Congress 2016

  31. Dobashi H, Sakurai Y, Konishi Y, Ouchi S, Matsubara K, Kitayama A, Takahashi H, Visualizing excavated soil flow in the cutter chamber of a large earth pressure balanced shield, In: Proceedings of the 31st ITA-AITES world tunnel congress, 2005; 377–388

  32. Wessels N, Dang TS, Hackl K, Meschke G, Cutting and material transport in EPB shield machines: a coupled simulation approach, In: EURO:TUN 2013. Proceedings of the third international conference on computational methods in tunneling and subsurface engineering, 2013; 599–609

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Acknowledgements

Financial support was provided by the German Science Foundation (DFG) in the framework of project A4 of the Collaborative Research Centre SFB 837. This support is gratefully acknowledged. Parts of this publication may represent excerpts from the first author’s doctoral thesis [18], which was prepared within this research project.

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Authors and Affiliations

  1. PORR Deutschland GmbH, Franz-Rennefeld-Weg 4-6, 40972, Düsseldorf, Germany

    Mario Galli

  2. Institute for Tunnelling and Construction Management, Ruhr-Universität Bochum, Universitätsstr. 150, 44801, Bochum, Germany

    Markus Thewes

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  1. Mario Galli
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  2. Markus Thewes
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Correspondence to Markus Thewes.

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Galli, M., Thewes, M. Rheological Characterisation of Foam-Conditioned Sands in EPB Tunneling. Int J Civ Eng 17, 145–160 (2019). https://doi.org/10.1007/s40999-018-0316-x

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  • DOI: https://doi.org/10.1007/s40999-018-0316-x

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