Study of a Continuous Drill and Blast Tunneling Concept
Abstract
A spiral drilling pattern is described which offers high efficiency drill and blast tunneling via frequent small blasts rather then the occasional large blasts of conventional practice. Preliminary design work is presented for a combined drilling, loading, shooting, and mucking machine which would stay at the tunnel face, providing continuous drill and blast progress. Advance rates in excess of 13 feet per hour in an 8 x 8 foot horseshoe tunnel are predicted using off-the-shelf (except for automated explosive loading and initiation) components.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1973
- Accession Number
- AD0757114
Entities
People
- Carl R. Peterson