The Journal of Explosives Engineering - July/August 2022 - 2

The Journal of
EXPLOSIVES
ENGINEERING
FEATURES
6
Crack Displacement and
Vibration Measurement
of an Underground
Portal
During this study, surface
and underground
blasting were performed
to daylight two new
access portals for the
mine. The dynamic and
long-term responses of
an existing roof crack in
the underground mine
were monitored along
with vibrations within
the rock mass.
16 28
Product Spotlight
Product spotlight
from Austin Powder
Company.
Blasting for Rescue
Applications
This article shows
that due to advances
in portable drills and
low-impact blasting,
explosives are now a
viable tool for a modern
cave rescue team.
36 38
29th Annual Photo
Contest
Featuring one honorable
mention winner.
Safety Talk
From the NSW
Resources Regulator
Safety Bulletin: Hand
injuries (including
fingers and thumbs).
On the Cover: New Mine Portal in Southwestern, Pa.
See story page 6.
DEPARTMENTS
4
From the Executive
Director
2
18 20
Industry News
News from the
explosives industry.
Calendar of Events
A list of upcoming
events in the
explosives industry.
The Journal of Explosives Engineering
22 26
Explosives, 100 Years
Ago, More or Less
Shot-firing by electricity.
Chapter
News
News from Black
Hills, Northern
Plains and Kentucky
Bluegrass chapters.
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The Journal of Explosives Engineering, published six times per year, is the official publication of the International Society of Explosives Engineers. The Society is not responsible for opinions
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July/August 2022

The Journal of Explosives Engineering - July/August 2022

Table of Contents for the Digital Edition of The Journal of Explosives Engineering - July/August 2022