Cross-Borehole Observation of Soil Grouting

by Edwin F. Laine, Electronics Engr.; Lawrence Livermore Lab., Univ. of California, Livermore, Calif.,
Justin T. Okada, Electronics Engr.; Lawrence Livermore Lab., Univ. of California, Livermore, Calif.,
R. Jeffrey Lytle, Electronics Engr.; Lawrence Livermore Lab., Univ. of California, Livermore, Calif.,


Serial Information: Issue 8, Pg. 871-875


Document Type: Journal Paper

Abstract:

An investigation of the dispersion of chemical grout injected into a sandpit experimental site near Friendship Airport, Baltimore, Md. was carried out by Lawrence Livermore Laboratory for Hayward Baker Associates and the Federal Highway Administration. High frequency electromagnetic cross-borehole probing was used to observe the grouted area. An underground image was produced by means of geotomography, a concept that is new to geophysical exploration. This visual presentation clearly identifies the location of the injected grout.

Subject Headings: Soil grouting | Soil analysis | Site investigation | Chemical grouting | Airports and airfields | Federal government | Boring | Imaging techniques

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