Hydraulic and earth engineering – Earth treatment or control – Chemical
Patent
1984-06-06
1987-04-07
Corbin, David H.
Hydraulic and earth engineering
Earth treatment or control
Chemical
411 44, E21D 2002
Patent
active
046556443
ABSTRACT:
A rockbolt for installation in a bore in the roof of an underground excavation for supporting a roof, the rockbolt comprising a sleeve and a central member axially disposed and is extending substantially the length of the sleeve thereby defining an annular chamber in the sleeve. The sleeve at its lower end engages a faceplate which engages the roof. The upper end of the sleeve can be secured in the bore with an anchor, as is well known in the art. Ports in the lower end of the sleeve permit the separate introduction of separate components of a hardenable binder material, which mix as they pass up through the annular chamber. The binder is extruded out through ports in the upper end of the sleeve and travels downward filling the annular space between the sleeve and the bore. The binder hardens securing the central member and the sleeve in the bore.
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Underground Excavations in Rock, by F. Hoek and E. T. Brown, pp. 333-342.
Celtite Resin Injection Systems (brochure).
Lane William L.
Lewis Donald L.
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