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.
3D Profile and Boretrak Used for Difficult Shot
This limestone quarry in the Eastern US is set up directly next to a main country road. The quarry is small in itself and the blasting is spaced throughout the year. The patterns for this quarry vary depending on where they are shooting. The main concern for this quarry is fragmentation and keeping all the rock inside of the quarry.
Controlling Vibration Damage
The ability of HotShot® electronic initiation system’s ability to maintain the integrity of highwalls was demonstrated in a test at Newcrest’s Telfer gold mine.
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.
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
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.
Minimizing Off Site Blast Effects
By using site-specific seismic modeling that determined optimum firing sequences on a shot by shot basis, off-site vibration effects were minimized and additional gains in overall blast efficiency led to better fragmentation, faster truck cycle times, reduced oversize, increased pattern geometry, elimination of decking and the ability to increase shot size.
Multiple Hole Configuration Test Shot for Optimum Firing Time and Vibration Protection
In order to ensure vibration levels will be below the required level, a detailed Signature Hole Analysis (SHA) was performed on a series of 5 holes with different loading configurations. This will allow the mine to achieve optimum firing times while also building a database for vibration predictions site specific to approaching neighboring houses.
New Alternatives for Pipeline Construction
Utilization of Signature Hole Analysis combined with DigiShot® electronic detonators demonstrated how close proximity blasting can be achieved even with very conservative vibration limitations.