Vibration and Acoustic Pressure Control
Mitigating Impacts
The surrounding area of the city Ribeirão Preto is home to one of the largest basalt mining operations in the interior of the state of São Paulo. With open-pit mining operations, Construtora Said faced the complex challenge of controlling vibration and acoustic pressure during blasting to reduce the impact on nearby communities and the environment.
“For the past 5 years, the Enaex team has been actively involved in making improvements to our mine. The commitment to quality is in our DNA. Solutions like Boretrak, delayed adjustment between holes, and propagation curve studies were of utmost importance in achieving the level of excellence we aim for. We would have never met these goals without the support of the Enaex Team. The Said Group thanks all those involved in this partnership.”
Daniel Said,
Director of Construtora Said
Vibration Reduction Technique
The operations team at Enaex implemented the use of Boretrak technology to conduct a detailed analysis of the drill holes. Based on the data collected with this tool, it was able to identify critical points where vibrations would be more intense. With this knowledge, the operations team adopted charge relief strategies in the boreholes to reduce the amount of explosives at specific locations. This approach led to a more controlled dissipation of the energy released during the blasting, significantly reducing vibrations and the noise associated with the detonation.
After the proposed modifications, Construtora Said achieved a reduction in both vibration and acoustic pressure during detonations. According to the measurements taken, vibrations were reduced from
1.5 mm/s to less than 1.00 mm/s. Thanks to the partnership with Enaex, the blasting operations now occur in a more efficient and controlled manner, meeting the required standards and exceeding customer expectations.
Through the solution proposed by Enaex, it was possible to gain in-depth knowledge of the geological characteristics and borehole arrangement, allowing for precise adjustments to detonation timing and loading. These modifications were integrated into the blasting plan for a more controlled and efficient detonation, thus meeting the client’s needs.
At Enaex, our purpose is to humanise mining by having a positive impact on all aspects of the blasting process.
We know that life is the most precious thing on the planet. That’s why we put people first to ensure the well-being of our teams, our broader communities, and the environment.
With a proven track record of providing the global mining industry with flexible, tailor-made blasting solutions, Enaex is the preferred blasting solutions partner.