Monitoring progressive cementation of sand by biogrouting through time-lapse shear-wave seismics

R. Ghose, Leon van Paassen, W. Van Der Star, T. Van Der Linden, G. Van Zwieten

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Carefully designed time-lapse shear-wave seismic measurements were carried out during a large-scale biogrouting experiment in sand. The results point out the possibility for a reliable, quantitative monitoring in time and space of the effect of biogrouting in the shallow subsoil. High-resolution time-lapse shear-wave seismic can uniquely define the evolution of cementation and stiffening of the sand during progressive grouting, which is otherwise difficult to monitor. The seismically estimated distribution of in-situ stiffness as a function of distance from the injection well matches quite well with the stiffness distribution independently derived by empirical analyses of lab test data on samples. Surface seismic measurements using high-frequency shear waves do have the potential to resolve the grouting induced change in soil stiffness as shallow as the first few meters of the top soil. One significant conclusion is that not only velocity but also the amplitude of the shear waves can be a powerful indicator of the state of CaCO3 cementation, and can shed light on the underlying physical mechanism.

Original languageEnglish (US)
Title of host publicationNear Surface 2009 - 15th European Meeting of Environmental and Engineering Geophysics
PublisherEuropean Association of Geoscientists and Engineers, EAGE
ISBN (Print)9073781728, 9789073781726
StatePublished - Jan 1 2009
Externally publishedYes
Event15th European Meeting of Environmental and Engineering Geophysics of the Near Surface Geoscience Division of EAGE, Near Surface 2009 - Dublin, Ireland
Duration: Sep 7 2009Sep 9 2009

Other

Other15th European Meeting of Environmental and Engineering Geophysics of the Near Surface Geoscience Division of EAGE, Near Surface 2009
CountryIreland
CityDublin
Period9/7/099/9/09

Fingerprint

cementation
Shear waves
sands
S waves
S-wave
Sand
stiffness
sand
Grouting
Monitoring
Stiffness
grouting
monitoring
soils
Soils
stiffening
subsoil
topsoil
injection
well

ASJC Scopus subject areas

  • Geophysics
  • Geotechnical Engineering and Engineering Geology

Cite this

Ghose, R., van Paassen, L., Van Der Star, W., Van Der Linden, T., & Van Zwieten, G. (2009). Monitoring progressive cementation of sand by biogrouting through time-lapse shear-wave seismics. In Near Surface 2009 - 15th European Meeting of Environmental and Engineering Geophysics European Association of Geoscientists and Engineers, EAGE.

Monitoring progressive cementation of sand by biogrouting through time-lapse shear-wave seismics. / Ghose, R.; van Paassen, Leon; Van Der Star, W.; Van Der Linden, T.; Van Zwieten, G.

Near Surface 2009 - 15th European Meeting of Environmental and Engineering Geophysics. European Association of Geoscientists and Engineers, EAGE, 2009.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Ghose, R, van Paassen, L, Van Der Star, W, Van Der Linden, T & Van Zwieten, G 2009, Monitoring progressive cementation of sand by biogrouting through time-lapse shear-wave seismics. in Near Surface 2009 - 15th European Meeting of Environmental and Engineering Geophysics. European Association of Geoscientists and Engineers, EAGE, 15th European Meeting of Environmental and Engineering Geophysics of the Near Surface Geoscience Division of EAGE, Near Surface 2009, Dublin, Ireland, 9/7/09.
Ghose R, van Paassen L, Van Der Star W, Van Der Linden T, Van Zwieten G. Monitoring progressive cementation of sand by biogrouting through time-lapse shear-wave seismics. In Near Surface 2009 - 15th European Meeting of Environmental and Engineering Geophysics. European Association of Geoscientists and Engineers, EAGE. 2009
Ghose, R. ; van Paassen, Leon ; Van Der Star, W. ; Van Der Linden, T. ; Van Zwieten, G. / Monitoring progressive cementation of sand by biogrouting through time-lapse shear-wave seismics. Near Surface 2009 - 15th European Meeting of Environmental and Engineering Geophysics. European Association of Geoscientists and Engineers, EAGE, 2009.
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