Because we are part of the community, we’re committed to being a good neighbor. As stated in our company values, We Care for the Community and Our Environment. This means we: listen to and work with the community, treat water as a precious resource, and minimize environmental impacts.
Conversion 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.
DIFFERENTIAL ENERGY in Truck Shovel Overburden
As part of a continuous improvement process, DIFFERENTIAL ENERGY has been introduced in the Truck/Shovel areas of the pit for trials. Multiple areas have been tested utilizing different densities on the top and bottom of the hole. The holes were then loaded with the same amount of explosives, or less, but due to the lower densities the explosives column height has been increased to improve energy distribution in the blast hole.
Dyno Nobel Blast Design and DigiShot® Detonators Produce Excellent Results
The geologic formation varies throughout the pit from a fairly good fragmenting ‘blue’ stone to a very hard to break ‘green-white’ formation. In addition, both formations are loosely jointed with numerous slips running in unpredictable directions. On this particular blast, a major slip caused excessive burden on the face of the blast. The major challenge at this operation is the close proximity and density of surrounding communities, so vibration and air over-pressure must be addressed in any blast design.
DynoConsult Assists in Permit Change
DigiShot Electronic detonators, signature hole analysis provides means to achieve goal of zero increased impact to community regardless of shot size
Electronic Detonator Precision & Signature Hole Analysis Provide New Alternatives for Pipeline Construction
Utilization of Signature Hole Analysis (SHA) combined with DigiShot® electronic detonators demonstrated how close proximity blasting can be achieved even with very conservative vibration limitations.
Electronic Detonator Precision and Timing Optimization Leads to Lower Costs and Reduced Community Perception
This Midwest quarry customer needed help to optimize their blasting program and to reduce risk exposure from blast complaints. Dyno Nobel proposed a transition to DigiShot® electronic detonators. First, a Signature Hole Analysis (SHA) program was introduced to aid in determining firing times for reducing peak particle velocity and enhancing high frequencies to minimize structure response.
Electronic Initiation and Waveform Analysis Improve Off-Site Blasting Effects
Electronic initiation systems provide accurate delay timing for today’s demanding blasting applications. Electronics also provide the explosive engineer with the ability to program precise delay times to further improve blast performance including reduced peak particle velocity (PPV) and increased frequencies (Hz) which minimizes ground vibration.
Expansion of Quarry Using TITAN® 1000 LD and DigiShot® Plus
Surrounded by numerous communities, the Graymont Marbleton Quarry was looking to expand its quarry number six.
Increased Production and Happy Neighbors
By using Signature Hole Analysis modeling to develop alternative timing sequences, Dyno Nobel was able to increase the blast hole diameter allowing for pattern expansion and an increase in blast rock per hole. Pattern expansion resulted in lower drilling costs, and timing sequences kept vibration levels low, while enabling the quarry to increase production per blast event while ensuring minimal off-site ground vibration to satisfy the local market demand for stone.
Making Way for Increased Production of Hydroelectric Power
The team set out to drill and blast as much rock as possible to avoid the use of time consuming and costly mechanical rock breaking techniques. In addition, the rock needed to be excavated without excessive vibration damage to the existing electrical substation or the 100-year-old concrete dam.