kcherry497/dyno-blast-4b-rag huggingface dataset:
BLASTLITE® — Tech Info (Tech Info), page 2 of 2

Product Disclaimer The explosive products discussed in this document should only be handled by persons with the appropriate technical skills, training and licences. While Dyno Nobel has made every effort to
ensure the information in this document is correct, every user is responsible for understanding the safe and correct use of the products. If you need specific technical advice or have any questions, you should contact
your Dyno Nobel representative. This information is provided without any warranty, express or implied, regarding its correctness or accuracy and, to the maximum extent permitted by law, Dyno Nobel expressly
disclaims any and all liability arising from the use of this document or the information contained herein. It is solely the responsibility of the user to make enquiries, obtain advice and determine the safe conditions for use
of the products referred to herein and the user assumes liability for any loss, damage, expense or cost resulting from such use. ® DYNO, GROUNDBREAKING PERFORMANCE, BlastLite, and the Person and Pipe
device are registered trademarks of the Dyno Nobel / Incitec Pivot Group. © Dyno Nobel Asia Pacific Pty Limited 2016 Reproduction without permission strictly prohibited.

Dyno Nobel Asia Pacific Pty Limited (ACN 003 269 010) is a subsidiary of
Version 8
 Incitec Pivot Limited (ACN 004 080 264) Level 8, 28 Freshwater Place, Southbank Vic 3006
June 2016
 Phone 1800 251 872 Fax 07 3026 3999 www.dynonobel.com
Explosive Engineers Guide (Guide), page 8 of 66

Rules of thumb for Surface Blasting

These rules provide a first estimate in the absence of any better data.
Blasthole diameter in mm ≤ 15 x Bench height (BH) in metres
Bench height (BH) in metres ≥ (Blasthole diameter (D) in mm)/15
Burden (B) = (25 to 40) x (D)
Spacing (S) = 1.15 x B (This gives an equilateral pattern)
Subdrill = (3 to 15) x D
Charge length (C) ≥ 20 D
Stemming ≥ 20 x D or (0.7 – 1.2) x B
Burden stiffness ratio = BH/B : 2 to 3.5 good fragmentation
 : > 3.5 very good fragmentation
Stemming material size = D/10 to D/20 (Angular material with minimum fines)

Presplit blasting
Spacing = Hole diameter x 12
Burden = 0.5 x production blast burden (B)
Uncharged length at top = 10 x D
Powder factor = 0.5kg per square metre of face
Do not stem holes.
Fire all holes on the same delay, or in groups of ≥ 5 holes

Smooth blasting
Spacing = 15 x Hole diameter (hard rock)
 20 x Hole diameter (soft rock)
Burden = 1.25 x Spacing
Fire as many holes as possible on one delay.
Stem holes.

Powder factors
Typical powder factors Typical powder factors
used in mass blasts used in presplit and smooth blasting
Rock type PF (kg/m3) Rock type PF (kg/m2)
Hard 0.7 – 0.8 Hard 0.6 – 0.9
Medium 0.4 – 0.5 Medium 0.4 – 0.5
Soft 0.25 – 0.35 Soft 0.2 – 0.3
Very Soft 0.15 – 0.25

© Dyno Nobel Asia Pacific Pty Limited 2025. Reproduction without permission is strictly prohibited. 8
NONEL® & Primacord® Product Manual (Guide), page 17 of 85

ALWAYS . . . remember that all safe practices required
 for and applicable to explosives generally ap-
 ply to NONEL and detonating cord products. . . . guard, barricade, and post or flag holes Proper storage requires not only security from
 waiting to be fired against unauthorized entry. theft or loss, but it requires that such products
 be kept from flame, heat and open lights such
 . . . protect the explosives from unintended en- as smoking and matches, and heat such as
 ergy. Explosives have to be sensitive to pur- stoves and radiators. It is especially important
 posefully supplied energy when you want to ini- to keep detonating cord, primers and detona-
 tiate them. This sensitivity means they can be tors from unintended initiating energy such as
 initiated when energy is accidentally supplied. open flame. Remember that the shock tube
 Some examples of sources of unintended ini- can burn or that heat may seal it and cause
 tiating energy that users must guard against misfires. If fire occurs, retreat to a safe dis-
 are: the impact of a falling rock on a cap; abra- tance and do not attempt to extinguish. sion or impact by drilling into a misfired cap
 that has not been recovered and disposed of . . .
DigiShot Plus® (EEG Guide), page 1 of 1

DIGISHOT PLUS es la más reciente incorporación de Dyno Nobel a su cartera de productos de sistemas de iniciación electrónicos. Además de los beneficios de precisión en los tiempos de retardo, su rápido despliegue con un cable descendente reforzado y conectores de superficie diseñados para cualquier condición climática, DIGISHOT PLUS es realmente flexible, amigable para los usuarios y completamente programable. Como beneficio adicional para el usuario, cualquier tiempo de retardo puede ser asignado a cualquier detonador y los detonadores pueden conectarse a la línea troncal en cualquier orden práctico… ¡no sólo en el orden de iniciación!

Hoja de Datos Técnicos

HDS

Folleto
Delay Pattern Guide 2025.pdf (Guide), page 20 of 38

Telephone: +1 800 473 2675
 dynonobel.com 16
DYNO NOBEL INC. and its subsidiaries and affiliates disclaim
any warranties with respect to their products and the information APPLICATIONS SURFACE DELAYS NOTES
presented herein, the safety or suitability thereof, or the results to
be obtained, whether express or implied, INCLUDING WITHOUT
 Open pit 17 ms and 109 ms Use where limited
LIMITATION, ANY IMPLIED WARRANTY OF MERCHANTABILITY
OR FITNESS FOR A PARTICULAR PURPOSE AND/OR ANY OTHER movement is desired.
WARRANTY. Buyers and users assume all risk, responsibility and
liability whatsoever from any and all injuries (including death), losses, LIMITATIONS IN-HOLE DELAYS
or damages to persons or property arising from their use of the
products. Under no circumstances shall DYNO NOBEL INC. or any Infinite in length, 6 rows deep Same delay period in each hole. Suggested in-
of its subsidiaries or affiliates be liable for special, consequential or
incidental damages or for anticipated loss of profits. hole delay: 500 ms or higher
News: Dyno Nobel Announces Feasibility Study For $800 Million Project In Jefferson Parish (EEG Guide), page 4 of 5

“I am confident that the results of this study will confirm that Jefferson Parish’s west bank is well-positioned to capture this potential $800 million investment by a global industry leader such as Dyno Nobel,” Jefferson Parish President John Young said.

About Cornerstone Chemical Company

Cornerstone, based in Waggaman, La., is a leading manufacturer of key intermediate chemicals that are used in diverse industrial and consumer applications, including aerospace, automotive, water treatment, oil recovery, agriculture, plastics, furniture and flooring, and performance coatings. Cornerstone is the sole manufacturer of melamine in North America, a leading manufacturer of acrylonitrile in the U.S. and a top supplier of sulfuric acid in the Gulf region. Located on an 800-acre site just outside of New Orleans, Cornerstone safely operates a world-class, highly synergistic manufacturing facility near the Mississippi River. Known for its high-quality products, Cornerstone is recognized worldwide for its reliability as a critical global supplier of intermediate chemicals.

About Dyno Nobel
SCORPION™ — Tech Info (Tech Info), page 2 of 2

respect. Priming - Insert the detonator fully in the central channel of Scorpion device. When reverse priming, the NONEL signal tube is wrapped over the protection
slot to prevent signal tube damage. Loading - Push the Scorpion device to the back of the hole with the loading
hose. Pull the hose approximately 100mm away from the Scorpion device and
proceed to load the hole with explosive.
UREA AUTOMOTIVE GRADE UREA (AGU) (Tech Info), page 1 of 1

TECHNICAL DATA SHEET
UREA PRODUCT DESCRIPTION
 Automotive Grade Urea (AGU) is a white, solid,
Automotive Grade Urea (AGU) cylindrical pellet. It is manufactured by compressing pure urea crystals in a
 pelletizing process which avoids the melting and heating of the urea where
 the majority of biuret is formed. It is an organic amide molecule containing
 SDS
 Properties #1137
 46% nitrogen in the form of amine groups. Urea is infinitely soluble in water
 and is a benign and safe chemical to handle. This product contains NO
 formaldehyde.
 Total Nitrogen Analysis 46.0 minimum by weight
 (guaranteed)
 Water 0.2% by weight
 APPLICATION RECOMMENDATIONS
 • Production of Diesel Exhaust Fluid
 Biuret (guaranteed) 0.1% by weight maximum

Formaldehyde 0.0%
 pH 8.5 – 9.5 by weight
 Bulk Density 46.5 pounds/cubic foot TRANSPORTATION, STORAGE AND HANDLING
 • UREA will decompose into ammonia and carbon dioxide at 275°F.
 Physical form 1/8 – 1/4” diameter cylindrical pellets
 • ALWAYS wash vessels containing Urea thoroughly before attempting repairs
 Color White requiring welding.
 • NEVER allow Urea to come into contact with nitric acid. The resulting chemical
 is unstable and dangerous.
Cost Savings Through Improved Cast Blasts (Case Study), page 2 of 2

onsult demonstrates the improved casting results. Blast Costs (USD/BCY) $0.2692 $0.3122
The resulting cast increase reduced the amount of work Dozer Costs (USD/BCY) $0.8421 $0.7839
for the bulldozers. Total Costs (USD/BCY) $1.1459 $1.1349
NONEL® EZ DET® 1.4B (SDS), page 8 of 22

Safety Data Sheet
According to 1907/2006/EC (REACH), 1272/2008/EC (CLP), and OSHA GHS
Trade name: NONEL® Non-electric Delay Detonators
 as Pb;*8-hr TWA; See Pocket Guide App. C
 TLV (USA) Long-term value: 0,05 mg/m³
 as Pb; BEI
 EL (Canada) Long-term value: 0,05 mg/m³
 as Pb; IARC 2A, R
 7439-92-1 lead
 PEL (USA) Long-term value: 0,05* mg/m³
 *see 29 CFR 1910,1025
 REL (USA) Long-term value: 0,05* mg/m³
 *8-hr TWA,excl. lead arsenate; See PocketGuideApp.C
 TLV (USA) Long-term value: 0,05* mg/m³
 *and inorganic compounds, as Pb; BEI
 EL (Canada) Long-term value: 0,05 mg/m³
 R; IARC 2B
 EV (Canada) Long-term value: 0,05 mg/m³
 as Pb, Skin (organic compounds)
 7440-21-3 silicon
 PEL (USA) Long-term value: 15* 5** mg/m³
 *total dust **respirable fraction
 REL (USA) Long-term value: 10* 5** mg/m³
 *total dust **respirable fraction
 TLV (USA) TLV withdrawn
 EL (Canada) Long-term value: 10* 3** mg/m³
 *total dust;**respirable fraction
 EV (Canada) Long-term value: 10 mg/m³
 total dust
 7782-49-2 selenium
 PEL (USA) Long-term value: 0,2 mg/m³
 as Se
 REL (USA) Long-term value: 0,2 mg/m³
 as Se
 TLV (USA) Long-term value: 0,2 mg/m³
 as Se
 EL (Canada) Long-term value: 0,1 mg/m³
 EV (Canada) Long-term value: 0,2 mg/m³
 1314-41-6 orange lead
 PEL (USA) Long-term value: 0,05 mg/m³
 as Pb; See 29 CFR 1910,1025
 REL (USA) Long-term value: 0,05* mg/m³
 as Pb;*8-hr TWA; See Pocket Guide App.

a) Long-term value: 0,2 mg/m³
 1314-41-6 orange lead
 PEL (USA) Long-term value: 0,05 mg/m³
 as Pb; See 29 CFR 1910,1025
 REL (USA) Long-term value: 0,05* mg/m³
 as Pb;*8-hr TWA; See Pocket Guide App.
NONEL® STARTER™ — SDS (SDS), page 5 of 10

8.
AMMONIA (SDS), page 6 of 10

SECTION 10 - STABILITY AND REACTIVITY
Reactivity: May be corrosive to metals.
Chemical Stability: Stable under normal conditions.
Possibility of Hazardous Reactions: Hazardous polymerization will not occur.
Conditions to Avoid: Avoid exposing containers to heat or flame. Keep separated from incompatible materials.
Incompatible Materials: Gold, silver, mercury, Oxidizing agents, Halogens, Halogenated compounds, Acids, Copper,
Zinc, Copper/Zinc alloys (Brass), Chlorates.
Hazardous Decomposition Products: Ammonia and oxides of Nitrogen (Nitrogen Dioxide, Nitric Oxide).

SDS# 1129 Date: 05/01/2025 Page 6 of 10
TROJAN® NB UNIVERSAL (SDS), page 1 of 12

Safety Data Sheet
According to: 1907/2006/EC (REACH), 1272/2008/EC (CLP), and OSHA GHS
Trade Name: CAST BOOSTERS

SECTION 1 – IDENTIFICATION OF THE SUBSTANCE/MIXTURE AND OF THE COMPANY/UNDERTAKING
Name, Address, and Telephone of the Responsible Party
Dyno Nobel Inc. SDS #: 1108
6440 S. Millrock Drive, Suite 150 Date: 05/12/2025
Salt Lake City, Utah 84121 Supersedes: 08/26/2020
Phone: 801-364-4800
Fax 801-321-6703
E-Mail: dnna.hse@am.dynonobel.com
www.dynonobel.com
1.1 Product Identifier
Trade Name: CAST BOOSTERS
Article Number:
No other identifiers
1108
Other Product Identifiers:
 DYNO® CORD SENSITIVE BOOSTERS - CS35, CS45, CS90, CS135
 TROJAN® SPARTAN®
 TROJAN® SPARTAN® Slider
 TROJAN® Stinger
 TROJAN® NB
 TROJAN® NB UNIVERSAL
 TROJAN® Twinplex
 TROJAN® SPARTAN® SR
 TROJAN® SPARTAN® Cone
 TROJAN® Ringprime
 TROJAN® SPARTAN® CSU
 TROJAN® WB
 TROJAN® SHIELD™
1.2 Relevant Identified uses of the Substance or Mixture and uses Advised Against
No further relevant information available.
Application of the Substance / the Mixture
Explosive product.
Commercial blasting applications.
1.3. Emergency Telephone Number
CHEMTREC 1-800-424-9300 (US/Canada)
 +01 703-527-3887 (International)
Powermite Plus® (EEG Guide), page 1 of 1

Powermite Plus® for secondary blasting is a high strength detonator sensitive inhibited emulsion explosive, packaged in plastic film chubs.  It has a moudable consistency, suitable for conforming to irregular surfaces. Powermite Plus is robust and designed to be mannipulated in the packaging without loss of product sensitivity.

SDS

Technical Information
GeoShot® Electronic Initiation System — Tech Info (Tech Info), page 2 of 2

7,
 the European Standards of Compliance for Electronic Detonators. Recommendations
Use - Due to the system’s flexibility, contact your local Dyno Nobel representative for
application recommendations. GeoShot Seismic GeoShot Tagger
Temperature Range – The GeoShot system can be used as described in this Interface Unit
technical data sheet in temperatures ranging between -40oC to +50oC.
Trench Blasting Guide (Guide), page 3 of 20

SAFE BLASTING REMINDERS

Blasting safety is our ﬁrst priority. Review these remind-
ers frequently and make safety your ﬁrst priority, too.
• Dynamite products will provide higher energy value
than alternate products used for trenching due to their
superior energy, velocity and weight strength.
• All explosives bearing the 1.1 UN classiﬁcation (High
Explosives) are sensitive to shock and heat; therefore,
dynamites must be treated with care. They must never
be removed from the factory cartridge nor should they
ever be tamped vigorously.
• Read and understand the “Always and Nevers” docu-
ment contained in each case of Dyno Nobel dynamite.
When in doubt, always consult the manufacturer.
TROJAN® NB UNIVERSAL (SDS), page 1 of 12

SECTION 2 – HAZARD(S) IDENTIFICATION
2.1 Classification of the Substance or Mixture
Classification According to Regulation (EC) No 1272/2008
Classifications listed also are applicable to the OSHA GHS Hazard Communication Standard (29CFR1910.1200).

exploding bomb

Expl. 1.1 H201 Explosive; mass explosion hazard.
Classification According to Directive 67/548/EEC or Directive 1999/45/EC

SDS# 1108 Date: 05/12/2025 Page 1 of 12
NITRIC ACID (98%) STRONG (SDS), page 5 of 11

SECTION 8 - EXPOSURE CONTROLS/PERSONAL PROTECTION
Control Parameters
Nitric acid (7697-37-2)
Mexico OEL TWA (mg/m³) 5 mg/m³
Mexico OEL TWA (ppm) 2 ppm
Mexico OEL STEL (mg/m³) 10 mg/m³
Mexico OEL STEL (ppm) 4 ppm
USA ACGIH ACGIH TWA (ppm) 2 ppm
USA ACGIH ACGIH STEL (ppm) 4 ppm
USA OSHA OSHA PEL (TWA) (mg/m³) 5 mg/m³
USA OSHA OSHA PEL (TWA) (ppm) 2 ppm
USA NIOSH NIOSH REL (TWA) (mg/m³) 5 mg/m³
USA NIOSH NIOSH REL (TWA) (ppm) 2 ppm
USA NIOSH NIOSH REL (STEL) (mg/m³) 10 mg/m³
USA NIOSH NIOSH REL (STEL) (ppm) 4 ppm
USA IDLH US IDLH (ppm) 25 ppm
Alberta OEL STEL (mg/m³) 10 mg/m³
Alberta OEL STEL (ppm) 4 ppm
Alberta OEL TWA (mg/m³) 5.2 mg/m³
Alberta OEL TWA (ppm) 2 ppm
British Columbia OEL STEL (ppm) 4 ppm
British Columbia OEL TWA (ppm) 2 ppm
Manitoba OEL STEL (ppm) 4 ppm
Manitoba OEL TWA (ppm) 2 ppm
New Brunswick OEL STEL (mg/m³) 10 mg/m³
New Brunswick OEL STEL (ppm) 4 ppm
New Brunswick OEL TWA (mg/m³) 5.2 mg/m³
New Brunswick OEL TWA (ppm) 2 ppm
Newfoundland & OEL STEL (ppm) 4 ppm
Labrador
Newfoundland & OEL TWA (ppm) 2 ppm
Labrador
Nova Scotia OEL STEL (ppm) 4 ppm
Nova Scotia OEL TWA (ppm) 2 ppm
Nunavut OEL STEL (mg/m³) 10 mg/m³

SDS# 1024 Date: 05/01/2025 Page 5 of 11
Electronic Detonators to Increase Underground Production Rates (EEG Guide), page 1 of 1

Lac des Iles mine, in Canada, was wanting to expand its underground operations and increase its underground production rates. In order to reach this goal the mine opted to switch over to Dyno Nobel’s DigiShot® Plus electronic initiation system for all of its production blasting. The mine switched to this system to help make the expansion a reality increasing production while decreasing operating costs.

Electronic Detonators to Increase Underground Production Rates
Conversion from Traditional to Modern Initiation (Case Study), page 1 of 2

CASE STUDY

CONVERSION FROM TRADITIONAL INITIATION TO
MODERN INITIATION
 PROJECT SUMMARY
QUARRIES EXPERIENCE THE MANY
ADVANTAGES OF CONVERTING FROM
TRADITIONAL INITIATION TO MODERN
INITIATION
Inconsistent breakage & complaints from vibration off
the blast events motivate two Indiana limestone quarry
customers to convert from detonating cord and slider
cast boosters to DigiShot® electronics and Spartan® cast
boosters.

Over a two month period, four blasts were initiated at the
one quarry and three at the second quarry. Both quarries delay timing ensured overall production costs remained
have similar face heights of 85 ft. & use a 5.5-inch borehole. level. Providing consistent rock fragmentation and muck
The drill pattern was a 14 x 16, which was expanded from displacement reduces pit operations cost balanced
the start by one foot in both the burden and the spacing even with the additional cost associated with advanced
and new delay timing was drawn up for the blast events. initiation systems.
NONEL® and PRIMACORD® Product Manual (Guide), page 40 of 87

Use with Detonating Cord
 If you plan to use TD units with detonating Detonating cord with coreloads less
 than 2.1 g/m (10 gr/ft) are NOT reli-
 cord, Dyno Nobel recommends PRIMACORD
 able initiators of TD units. A pigtail of
 detonating cords specifically designed for the 3.6 g/m (18 gr/ft) or higher coreload
 initiation of shock tube through J-hook connec- cord must be used to initiate outgo-
 tions. ing shock tubes.

Know that detonating cord may tie to detonating cord and initiate through knots,
 but shock tube cannot. In extending a trunkline or downline, tie separate lengths
 of the proper cord with a square knot. Make sure the knot is tight. Also, the knot
 should be several inches from the cut ends of the cord to avoid parting of the
 knot.
NONEL® EZ DET® 1.4B (SDS), page 6 of 22

Safety Data Sheet
According to 1907/2006/EC (REACH), 1272/2008/EC (CLP), and OSHA GHS
Trade name: NONEL® Non-electric Delay Detonators
 SECTION 4: FIRST AID MEASURES
Description of first aid measures
General information: No special measures required.
After inhalation: Unlikely route of exposure.
Supply fresh air; consult doctor in case of complaints.
After skin contact: Generally the product does not irritate the skin.
Wash with soap and water.
If skin irritation is experienced, consult a doctor.
After eye contact: Remove contact lenses if worn.
Rinse opened eye for several minutes under running water. If symptoms persist, consult a doctor.
After swallowing: Unlikely route of exposure.
Do not induce vomiting; call for medical help immediately.
Most important symptoms and effects, both acute and delayed
Blast injury if mishandled.
Hazards
Danger of blast or crush-type injuries.
Indication of any immediate medical attention and special treatment needed
Product may produce physical injury if mishandled. Treatment of these injuries should be based on the blast and
compression effects.
Explosive Engineers Guide (Guide), page 30 of 66

TITAN 1000G
 Charge Avg. Avg. Avg. Avg. Avg. Avg. Avg. Avg. Avg. Avg.
 L (m) In-Hole Toe In-Hole Toe In-Hole Toe In-Hole Toe In-Hole Toe In-Hole Toe In-Hole Toe In-Hole Toe In-Hole Toe In-Hole Toe
 0 0.80 0.80 0.85 0.85 0.90 0.90 0.95 0.95 1.00 1.00 1.05 1.05 1.10 1.10 1.15 1.15 1.20 1.20 1.25 1.25
 1 0.82 0.84 0.87 0.89 0.92 0.94 0.97 0.98 1.02 1.03 1.06 1.08 1.11 1.12 1.16 1.17 1.21 1.21 1.25 1.26
 2 0.84 0.87 0.89 0.92 0.93 0.97 0.98 1.01 1.03 1.06 1.08 1.10 1.12 1.14 1.17 1.18 1.21 1.23 1.26 1.27
 3 0.85 0.91 0.90 0.95 0.95 0.99 1.00 1.04 1.04 1.08 1.09 1.12 1.13 1.16 1.18 1.20 1.22 1.24 1.26 1.27
 Gassing
Improved fragmentation results in higher productivity for Newcrest (Case Study), page 2 of 2

Technology Applied
DEVELOPMENT OF TITAN BPC AND A PROCESS TO
LOAD AND FIRE
For Newcrest’s panel cave project to be a success it was
vital for Dyno Nobel to develop a new explosive and
delivery system that would be capable of loading such
holes. being initiated without issue – sometimes numerous days
A specifically designed emulsion based explosive, Titan
 after being loaded. BPC, was developed for this application. The requirements
of the explosive were for it to be robust, easy to handle,
able to maintain sensitivity when exposed to high head Value Added
pressures and have a high Velocity of Detonation (VoD). Prior to the use of Titan BPC underground, these IMPROVED FRAGMENTATION RESULTING IN
characteristics were proven in open pit trials. HIGHER PRODUCTIVITY
In order to combat the high head pressures associated with Firing the BPC holes fully confined produces significant
a 150m high column of explosive, re-engineering of the fracturing in the rock mass adjacent to the blast hole. These
delivery system was a prerequisite. The Dyno Nobel fractures assist in the comminution of the rock mass,
Engineering and Operatons teams worked closely to devise improving caving dynamics particularly at the
a new design. Following a series of trials, a modified commencement of the caving process.
Delay Pattern Guide 2025.pdf (Guide), page 14 of 38

14

FREE FACE

ST
 AR
 T
 25 25 25 25 42 25 25 25 25
 100 75 50 25 0 42 67 92 117 142

42

25 25 25 25 42 25 25 25 25
 184 159 134 109 84 126 151 176 201 226

42

25 25 25 25 42 25 25 25 25
 268 243 218 193 168 210 235 260 285 310

42

25 25 25 25 42 25 25 25 25
 352 327 302 277 252 294 319 344 369 394
Improved digability, reduced vibration in Truck Shovel operation (Case Study), page 1 of 2

Improved Digability, Reduced Vibration in
 Truck Shovel Operation

Project Summary Project Goals
REDUCED VIBRATION ALLOWS MINE TO DEVELOPING A TECHNIQUE THAT WOULD
DISREGARD SCALED DISTANCE LIMITATIONS ALLOW FOR MINIMIZING THE USE OF DECKED
The close proximity of both power lines and railroad tracks HOLES WHILE MAINTAINING VIBRATION
caused this mine to adopt blast designs that did not result WITHIN DESIRED LIMITS
in optimum digging rates for shovels. Use of scaled
 The decision was made to shoot a series of single hole
distance calculations required multiple decking that did
 test shots and utilize SHA in an effort to determine optimal
nothing to aid in digability while having marginal impact
 firing times for future blasts. The goal was to develop blast
on vibration at key structures. The use of SHA (Signature
 designs and timing scenarios that minimized or eliminated
Hole Analysis) and electronic detonators allowed the mine
 the need for decked holes, allowed for exceeding the
to dial in optimum timing sequences regardless of the
 modified scaled distance charge weight limit and resulted
number of holes per delay, resulting in reduced vibration
 in recorded peak particle velocity values well within the
and better digging rates allowing for faster removal of
 5.0 ips restriction in place for both the railroad tracks and
overburden.
 the power transmission poles.