Details:

Personal Author:
Hustrulid, William A. ; Iverson, Stephen R. ; Johnson. Jeffrey C. ;
Hustrulid, William A. ; Iverson, Stephen R. ; Johnson. Jeffrey C. ; Less -
Corporate Authors:
National Institute for Occupational Safety and Health, Office of Mine Safety and Health Research. ;
Description:
This report presents a new concept in perimeter control blasting for underground metal/nonmetal mine drifting applications focusing on the importance of the buffer holes in a blast design. The new blast design concept applies the understanding of radial damage that is caused by the buffer hole column charge. Buffer hole radial damage is defined by a practical damage limit applied to the rock lying between the buffer holes and the perimeter. A favorable comparison was made between five successful controlled blast designs and the concept of practical damage limit. This concept is easy to use and acceptance of the approach would only require mines to conduct trial blasts to test the design theory.
Content Notes:
Stephen R. Iverson, William A. Hustrulid, and Jeffrey C. Johnson. March 2013. Also available via the World Wide Web as an Acrobat .pdf file (3.45 MB, 79 p.). Includes bibliographical references (p. 55-60).
Subject:
[+]
Blasting
Explosives

Series:
Report of investigations (National Institute for Occupational Safety and Health) ; 9691; DHHS publication ; no. (NIOSH) 2013-129;
Report of investigations (National Institute for Occupational Safety and Health) ; 9691; DHHS publication ; no. (NIOSH) 2013-129; Less -
Document Type:
Report ;
Collection(s):
Stephen B. Thacker CDC Library collection
Main Document Checksum:
[+]
urn:sha256:3b798b711ee19e28bbfa4c860893a453c7a71732b193b0af5800255c0d520651
File Type:

Supporting Files

• No Additional Files

More +