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Results of laboratory tests and injection of chemical grout in fractured granite at NORAD underground Comba Operations Center near Colorado Springs, Colo, to stabilize and strengthen areas of faulted rock where relaxation and possible transfer of stress was causing movement; specially formulated stress-relieved epoxy resin grout was used for grouting of rock; simple equipment was devised for injection of grout holes and for injection of grout into rock bolt holes.
Results of laboratory tests and injection of chemical grout in fractured granite at NORAD underground Comba Operations Center near Colorado Springs, Colo, to stabilize and strengthen areas of faulted rock where relaxation and possible transfer of stress was causing movement; specially formulated stress-relieved epoxy resin grout was used for grouting of rock; simple equipment was devised for injection of grout holes and for injection of grout into rock bolt holes.
Chemical grouting at NORAD
Missouri. Univ -- Symposium Rock Mechanics -- Proc
Erickson, H.B. (author)
6th Symposium on Rock Mechanics ; 1964
1964
11 pages
Conference paper
English
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Development of rock bolt system for permanent support at NORAD
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