Inventors:
Clyde R. Smith - Pittsburgh PA
Clifford A. McCartney - Salem VA
Assignee:
Ingersoll-Rand Company - Woodcliff Lake NJ
International Classification:
E21D 2102
Abstract:
A device for a bore formed in a geological structure, the bore having an outer circumferential wall. A bolt is inserted into the bore. A sleeve secures a first axial portion of the bolt to a first portion of the circumferential wall. Grout secures a second axial portion of the bolt means to a second portion of the circumferential wall; A substantially disk shaped plug limits a passage of grout to between the first axial portion of the bolt and the first portion of the circumferential wall. A retainer is included to retain a grout container in the bore prior to insertion of the bolt means into the bore.