The Journal of Explosives Engineering - January/February 2015 - 20

this commitment the blast control unit
for DriftShot enables blast initiation from
a remote and safe location though a
coded signal and has the ability to work
on multiple communication backbones.
It has a smart key, and a password is required to help assure safety and security.
The DriftShot initiation system was
designed with easy to use timing templates for the blaster, which can also be
customized for specific applications. The
blast control unit allows for up to 200
detonators per channel to be fired. DriftShot also offers minimal components at
the face-just the electronic DriftShot
detonator in the borehole and a twowire busline.
The DriftShot tagger is a handheld
device that communicates with detonators and collects data. The tagger identifies and tests each detonator contained
in the blast. Furthermore, the tagger
has easy to use menus, is fast, and user
friendly.

Drilling and Blasting Seminar
at Crazy Horse: to Honor
and Learn
Crazy Horse, South Dakota, USA-
Crazy Horse Memorial hosted the Inaugural Korczak and Ruth Ziolkowski
Drilling and Blasting Seminar Oct. 2425, 2014. The sessions started on Friday
morning with a greeting from Monique
Ziolkowski, daughter of Korczak and
Ruth and director of Mountain operations and carving.
Crazy Horse Memorial has been in
the drilling and blasting industry for
many years while working on the world's
largest Mountain Carving in progress.
The first blast on the Mountain, June 3,
1948, was just the beginning of a won-

Korczak and Ruth Ziolkowski, 1982.

Learning from expert presenters in mountain view room.

derful dream. What started as an invite
from Henry Standing Bear to Korczak
Ziolkowski turned into a promise and a
lifelong endeavor for Korczak and Ruth
Ziolkowski.
This seminar honored them for their
persistence to start from a blank canvas
and lead us to the place we are today.
Monique Ziolkowski and the Mountain crew will carry on the legacy of Korczak and Ruth in many ways, one of
which is the hope to make the seminar a
biannual event at the memorial.
This first Korczak and Ruth Drilling
and Blasting seminar was planned and
organized by the Crazy Horse Memorial
Mountain crew and ISEE President Mike
Koehler. It welcomed 23 attendees from
South Dakota, Wyoming and Missouri.
Monetary support from industry drilling and explosives businesses, Black Hills
Chapter of ISEE, Dyno Nobel, Buckley
Powder, Wampum Hardware and Crazy
Horse Memorial Foundation, allowed
seven college students and two faculty
to attend the seminar.
Students were able to learn from experts presenting topics relevant to the
drilling and blasting industry. Friday
morning classroom topics presented by
Mike Koehler and Sarah Schmidt included final wall control, regulation updates
from the Bureau of Alcohol, Tobacco,
Firearms and Explosives (ATF), and fall
protection equipment and use. The
class was then escorted to the Mountain
shop where they had an informal lunch
and discussion. Learning continued after lunch with a demonstration by Jesse
Wheeler on the use of fall protection
equipment in a fall hazard zone. The
class then proceeded to the bench work
area and observed final blast preparations including use of fall protection
equipment, final hole loading, seismic
monitoring equipment and its setup,
and remote blasting equipment setup
presented by Jeff Hermanson, Jim McNulty, Neal Rothenbuhler and Dr. Cathy
The Journal of Explosives Engineering

Attendees were able to enjoy the view from the
arm of Crazy Horse.

Aimone Martin.
When the class and presenters returned to the visitor center they viewed
the blast from the veranda and were
able to observe the use of the remote
firing device.
After the Mountain blast classroom
sessions, Neal Rothenbuhler, Dr. Cathy
Aimone Martin and Ron Eastman presented on remote firing devices, blast
vibrations and airblast characteristics,
monitoring and standards, and electronic detonator use and benefits. The
students were also able to gain hands
on experience with remote firing devices, electronic detonator programming
equipment, and vibration and airblast
monitoring equipment.
On Saturday a historical tour of the
Crazy Horse visitor complex was given
by Monique. Jim McNulty and Dr. Cathy
Aimone Martin presented on vibration
monitoring which included reviews of
data collected during the previous day's
blast. Lastly, a special presentation was
given by Jeff Hermanson on the history
of the carving of Mt. Rushmore.
Prearrangements were made to allow seminar hours to be credited toward
various blaster continuing certification
programs.
January/February 2015

The Journal of Explosives Engineering - January/February 2015

Table of Contents for the Digital Edition of The Journal of Explosives Engineering - January/February 2015