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The Use of the Fully-Grouted Method for Piezometer Installation
The paper presents a detailed discussion of the fully-grouted method, installation procedure, theoretical background, laboratory test results of several cement-bentonite grout mixes, field examples of the application, and a seepage model that evaluates the impact of the difference in permeabilities between cement-bentonite grout and surrounding ground in the measured pore-water pressure. The discussion of the procedure includes a detailed description of the piezometer installation, materials, mixing, and construction tips associated with the fully-grouted method. The theoretical background that supports the use and application of the fully-grouted method is presented and discussed. The paper shows the laboratory test results of six cement-bentonite grout mixes in terms of permeability and unconfined compression strength. The measured permeabilities and unconfined compression strengths are in the range of 1.0 x 10–5 to 1.0 x 10–7 cm/s and 91 to 1790 kPa, respectively. The results of the seepage model show that the permeability of the cement-bentonite grout can be up to three orders of magnitude greater than the surrounding ground without significant error in the measured pore-water pressure. Finally, three field examples in which the fully-grouted method was applied successfully are presented and discussed.
The Use of the Fully-Grouted Method for Piezometer Installation
The paper presents a detailed discussion of the fully-grouted method, installation procedure, theoretical background, laboratory test results of several cement-bentonite grout mixes, field examples of the application, and a seepage model that evaluates the impact of the difference in permeabilities between cement-bentonite grout and surrounding ground in the measured pore-water pressure. The discussion of the procedure includes a detailed description of the piezometer installation, materials, mixing, and construction tips associated with the fully-grouted method. The theoretical background that supports the use and application of the fully-grouted method is presented and discussed. The paper shows the laboratory test results of six cement-bentonite grout mixes in terms of permeability and unconfined compression strength. The measured permeabilities and unconfined compression strengths are in the range of 1.0 x 10–5 to 1.0 x 10–7 cm/s and 91 to 1790 kPa, respectively. The results of the seepage model show that the permeability of the cement-bentonite grout can be up to three orders of magnitude greater than the surrounding ground without significant error in the measured pore-water pressure. Finally, three field examples in which the fully-grouted method was applied successfully are presented and discussed.
The Use of the Fully-Grouted Method for Piezometer Installation
Contreras, Iván A. (author) / Grosser, Aaron T. (author) / Ver Strate, Richard H. (author)
Seventh International Symposium on Field Measurements in Geomechanics ; 2007 ; Boston, Massachusetts, United States
FMGM 2007 ; 1-20
2007-09-21
Conference paper
Electronic Resource
English
Discussion of "The Use of the Fully-grouted Method for Piezometer Installation"
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GEOTECHNICAL INSTRUMENTATION NEWS - Update of the fully-grouted method for piezometer installation
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