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Cement grout propagation in 2D fracture networks: impact of rheology
KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Resources, Energy and Infrastructure.ORCID iD: 0000-0002-0958-7181
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Soil and Rock Mechanics. Skanska AB, Stockholm.
KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Resources, Energy and Infrastructure.
2019 (English)In: Proceedings in Earth and Geosciences: Rock Mechanics for Natural Resources and Infrastructure Development / [ed] Sergio A.B. da Fontoura, Ricardo Jose Rocca, José Pavón Mendoza, CRC Press, 2019, Vol. 6, p. 2486-2493Conference paper, Published paper (Refereed)
Abstract [en]

Cement grouts propagation into a two-dimensional water-saturated fracture networks with different values of rheological properties are simulated by using an extended two-phase flow model. The cement grouts are typical non-Newtonian fluids that contain yield stress, which are often assumed as Bingham fluids. The aim of this study is to investigate the impact of Bingham rheological properties, i.e. yield stress and plastic viscosity, on cement gouts propagation in two-dimensional fracture networks. The results generally show that the rheological properties of cement grouts, i.e. yield stress and plastic viscosity, significantly affect cement grouts propagation in the fracture network. The propagation rate in the fracture networks reduces with the increase of the yield stress and the plastic viscosity of the cement grouts.

Place, publisher, year, edition, pages
CRC Press, 2019. Vol. 6, p. 2486-2493
Keywords [en]
rock grouting; cement grout; fracture networks; rheology
National Category
Civil Engineering
Research subject
Civil and Architectural Engineering, Soil and Rock Mechanics
Identifiers
URN: urn:nbn:se:kth:diva-260046OAI: oai:DiVA.org:kth-260046DiVA, id: diva2:1354291
Conference
The 14th ISRM congress, September 13 to 18, 2019 Brazil
Funder
Rock Engineering Research Foundation (BeFo)
Note

QC 20190930

Available from: 2019-09-24 Created: 2019-09-24 Last updated: 2019-09-30Bibliographically approved

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