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Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Impact of Grout Rheology on GIN
Fractured rock grouting commonly adopts the GIN principle as a means of controlling grout penetration. Assumptions of negligible fracture flow velocities within the method, however, are questionable. Theoretically, penetration length for the common Bingham fluid grout idealization can be shown to be a function of the grout rheology, fracture geometry and the grout injection rate. This paper investigates the effects of fracture aperture and injection rate on grout penetration length using a 1-D fracture idealization; an approximation reasonable for channeled flow in rough fractures, but not applicable to radial flow. These preliminary results indicate that for realistic grout properties and injection rates the GIN approximation may significantly over-estimate the achievable penetration.
Impact of Grout Rheology on GIN
Fractured rock grouting commonly adopts the GIN principle as a means of controlling grout penetration. Assumptions of negligible fracture flow velocities within the method, however, are questionable. Theoretically, penetration length for the common Bingham fluid grout idealization can be shown to be a function of the grout rheology, fracture geometry and the grout injection rate. This paper investigates the effects of fracture aperture and injection rate on grout penetration length using a 1-D fracture idealization; an approximation reasonable for channeled flow in rough fractures, but not applicable to radial flow. These preliminary results indicate that for realistic grout properties and injection rates the GIN approximation may significantly over-estimate the achievable penetration.
Impact of Grout Rheology on GIN
Shuttle, Dawn (Autor:in) / Rombough, Vafa (Autor:in) / Bonin, Grant (Autor:in)
Geo-Denver 2007 ; 2007 ; Denver, Colorado, United States
14.10.2007
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Grouting , Rheology , Rocks , Soil stabilization , Cracking
Impact of Grout Rheology on GIN
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