Commenced in January 2007
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Effects of an Added Foaming Agent on Hydro-Mechanical Properties of Soil
Abstract:Earth pressure balance (EPB) tunnel boring machines are designed for digging in different types of soil, especially clay soils. This operation requires the treatment of soil by lubricants to facilitate the procedure of excavation. A possible use of this soil is limited by the effect of treatment on the hydro-mechanical properties of the soil. This work aims to study the effect of a foaming agent on the hydro-mechanical properties of clay soil. The injection of the foam agent in the soil leads to create a soil matrix in which they are incorporated gas bubbles. The state of the foam in the soil is scalable thanks to the degradation of the gas bubbles in the soil.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1126089Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1087
 Bentz, E., Fava, R. and Langmaack, L. (1997). “Optimierung des schaumgestützten EPB-Vortriebs, Boulevard Périphérique Nord de Lyon”. ISBN 3 87094 636 9. Vol. 37. pp.80.
 Houlsby, G. and Psomas, S. (2001). “Soil conditioning for pipejacking and tunnelling: properties of sand/foam mixtures”. Proc. Underground construction 2001. International exhibition & symposium. London Docklands, UK, pp. 128-138
 Jancsecz, S., Krause, R. and Langmaack, L. (1999). “Advantages of Soil Conditioning in Shield Tunneling Experiences of LRTS Izmir. Frankfurt am Main: Wayss & Freytag AG, 2005”. ISBN 90 5809 063 9.
 Langmaack, L. (2000). “Advanced Technology of Soil Condi-tioning North American Tunnelling”. Congress, Boston, A.A. Balkema, Rotterdam, Brookfield, p. 525 ISBN 90 5809 162 7
 Langmaack, L. (2002). “Soil conditioning for TBM. Symposium for Underground works: living structures.1-5.
 Langmaack, L. and Feng, Q. (2005). “Soil Conditioning for EPB Machines: Balance of Functional and Ecological Properties”. Underground Space Use: Analyses of the Past a Lessons for the Future-Erdem & Solak (eds), ISB 04 1575 452 9. 729-735.
 Milligan, G., 2000. Lubrication and soil conditioning in tunnelling, pipejacking and microtunneling. A state of the art review, geotechnical-consulting group.
 Peña, M. 2007. Foam as a soil conditioner in tunnelling: physical and mechanical properties of conditioned sands. Oxford: University of Oxford, 2007.
 Vinai, R., Oggeri, C., Peila, D. Soil conditioning of sand for EPB applications: A laboratory research. 2008.Tunnelling and Underground Space Technology 23 (2008) 308–317.
 Specification and Guidelines for the use of specialist products for Mechanised Tunnelling (TBM) in Soft Ground and Hard EFNARC, Association House, 99 West Street, Farnham, Surrey GU9 7EN, UK 2005.
 G.T. Houlsby and S.Psomas Soil conditioning for pipejaking and tunneling: proprieties of sand/foam mixture,Oxford University, UK,2005.