Transcription of Contemporary Rock Drilling and Grouting Practices
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Contemporary Rock Drilling and Grouting Practices
1 Contemporary Rock Drilling and Grouting Practices Dr. Donald A. Bruce, Geosystems, It is generally recognized, both nationally and internationally, that rock Grouting theory and practice in North America has undergone a most positive revolution during the last decade or so. Key elements of this progress have included the development and use of suites of balanced, stable High Mobility Grouts (HMG); increasing use of Low Mobility Grouts (LMG); new overburden and rock Drilling methods; computer monitoring control and analysis; and the use of Apparent Lugeon Theory and Lugeon testing to assure proper stage refusals and low residual permeabilities, respectively. These concepts have been most strongly implemented on major Federal dam remediation projects. Also, certain consultants are using them on smaller, non-Federal projects.
1 Contemporary Rock Drilling and Grouting Practices Dr. Donald A. Bruce, Geosystems, L.P. It is generally recognized, both nationally and internationally, that rock grouting …
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