Managing your information will improve operational performance. We recognize your need to access immediate, accurate and electronic blast information. Our blasting personnel utilize electronic shot reports that comply with your particular reporting requirements including explosives loads and delay patterns. Ask about our customized online shot report tool.
Adjusting Design for Plant Facing Shot
This limestone quarry in the Eastern U.S. has been using an internal pattern of 16 x 18 feet with an inverted pattern of 18 x 16 feet on the front row. This quarry has many neighbors located around it and the plant and mine structures are located close to the pit. Fragmentation and vibration have been the key points to this quarry.
Aggregate Quarry Inventory Documentation
Due to the complexity and size of stockpiles and many quarry operations, the use of 3D laser profiling systems commonly used for face profiling offered an alternative to costly and time consuming aerial photogrammetry methods.
Angled Holes Used to Blast Excess Burden
Evaluation needed for appropriate burden on angled holes
Boretrak Used for Appropriate Loading of Shot
Multiple blasters create challenges
Camera Investigation of Explosive Weight per Blast Hole Overload
The integrity of the blast hole was investigated with a special blast hole camera to determine if the additional emulsion was a result of seams or voids.
Comparison of Fragmentation Results by Varying Time Between Top and Bottom Primers
Study conducted to find optimal delay timing for this granite quarry
DIFFERENTIAL ENERGY in Casting Application
While casting percentages are important, one of the big drivers in several of the pits is NOx, given the proximity to the surrounding community. In this test, the emulsion produced a 26% cast to final number and the only NOx seemed to come from the area where the holes slumped. The TITAN® 50/50 shot produced a 28% cast to final with more NOx than the 100% emulsion shot.
Dyno Nobel Achieves Custom Blast Requirement through Blast Design
Muck from a planned shot was likely to have unwanted consequences
Evaluation of Transient Vibration
Concerns over off site impact of transient ground vibration and potential complaints associated with blasting resulted in this Mid-Atlantic Limestone customer employing Signature Hole Analysis (SHA) for determining initiation timing for all production blasts employing electronic initiation.
Improvement in 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 and increased frequencies which minimizes ground vibration.