To control the overbreaking of an underground mining development gallery, the controlled blasting technique was proposed and as a result it was possible to reduce costs and improve the physical stability of the periphery of the opening, achieving greater safety for personnel and equipment. With the support of the geomechanical studies, the …

Blasting in mining is a chemical and physical process that occurs through the firing of explosives. It breaks mineral-bearing materials. These materials can be coal, ore and mineral stone. Blasting fragments materials, splits off rock blocks, and demolishes existing structures. The process of blasting goes through blast design prior any ...

Larry Mirabelli, senior manager at Buckley Powder Co., teamed with Bill Hissem, senior mining engineer at Sandvik Construction, to deliver a presentation on drilling and blasting at the 2015 Quarry Academy hosted by Dyno Nobel and Sandvik.. Mirabelli, who has more than 40 years of experience in explosives technology between …

The basic steps of the blasting process involve: Evaluating the zone. Placing the explosives. Initiating the blast. Clearing the area and reinforcing the site. 1. Evaluation of Blast Zone. Whether in mining or construction, proper personnel first review the location and calculate the extent of the proposed blast.

Abstract. The state-of-the-art blasting methodologies have been developed over the years to overcome the challenges of underground mining. The major challenges associated with Indian underground mines include ore dilution and narrow vein mining. The productivity enhancement from underground is another challenge, as most of the …

Innovative Blasting Practices for Underground Hard Rock Mining. Abstract The state-of-the-art blasting methodologies have been developed over the years to overcome the challenges of underground mining. The major challenges associated with Indian …

Abstract: Drilling and blasting remain the preferred technique used for rock mass breaking in mining and construction projects compared to other methods from an economic and productivity point of ...

The prevention of blasting related accidents depends on careful planning and the faithful observance of proper blasting procedures and practices. Even the slightest abuse or misdirection of explosives can result in serious injury or death to mining personnel or the public. Two cardinal rules must be acknowledged and understood when using ...

Sur-face outcrops were the first to be mined in Johan-nesburg more than 100 years ago. Sub-outcrops have given rise to some of deepest mines in the world. Figure 3. Gold and platinum mining areas in South Africa. They are exploited through deep shafts and tunnels cut at the minimum practicable dimensions.

Abstract. This paper discusses a systematic approach to underground ring design as well as a methodology for the continuous improvement of designs as conditions change. The …

Blasting practices in mines have undergone many changes in the recent past and continue to be honed and reconfigured to meet the demands of today's mining needs. This volume compiles papers of the workshop Blasting in Mines – New Trends, hosted by the Fragblast 10 Symposium . The 17 papers provide a mix which highlight the evolving …

The book also covers the recent advancements in methodologies to predict blasting outcomes and instrumentations for monitoring rock blasting operations. The book is a useful reference for rock blasting practitioners, mining engineers, professionals, and researchers. It is also a valuable reference for undergraduate and postgraduate students.

The human eye can see between 30 - 60 frames per second. An entry-level drone can see at 240 frames per second at a resolution of 1080p. For each blast that we participate in, we always have a ...

Blasthole management post-drilling, including collar consolidation (collars that are stable and do not collapse), depth measurement, water content and backfill. No blast will be successful if blastholes are not drilled in the correct location at the designed angle and to the right depth. Blastholes are often over-drilled to counter fall-back.

@article{Bai2023OptimizationOB, title={Optimization of blasting parameters and prediction of vibration effects in open pit mines based on deep neural networks}, author={Runcai Bai and Pengfei Zhang and Zhiqiang Zhang and Xue Sun and Hong Lu Fei and Shi-Tai Bao and Gang Hu and Wenyan Li}, journal={Alexandria Engineering …

Edition 2 Code of Practice: Blast Guarding in an Open Cut Mining Environment Page 6 2.0 DEFINITIONS Definitions used within this Code where applicable are consistent with the meanings as defined in AS2187.0 Associated works - Other magazines, process buildings and storages of energetic materials, e.g.

Lastly, blasting a bench which has ore in the formation and a free face being perpendicular to the strike of the ore, I will say with the help of BMM technology, you can go ahead and blast from ...

To control the overbreaking of an underground mining development gallery, the controlled blasting technique was proposed and as a result it was possible to …

Explosives (EXs) are extensively used for civilian purposes, with blasting operations playing a crucial role in mining (underground and open pit) [1] [2] [3], civil engineering (demolitions ...

During an intense and accurate study of initiation systems used on an AngloGold mine, Mine A, poor drilling practices were revealed. Graphic results of all actual measurements taken are shown below. [ ] Accurate drilling of shot holes will determine whether a mining operation is payable or not and at what pay limit mining can take …

Good blasting practices based on the careful application of explosive energy lead to significantly safer mining operations. Case studies demonstrate how the …

Blasting Technology for Underground Hard Rock Mining. May 2023. DOI: 10.1007/978-981-99-2645-9. Publisher: Springer. ISBN: 978-981-99-2645-9. Authors: Vivek Kumar Himanshu. Central Institute of ...

Abstract. This paper presents the final wa ll blasting practices at Eldorado Kisladag Gold Mine in Turkey. Benchmark and improved wall control designs were explained in detail. Kisladag Mine …

Good blasting practices based on the careful application of explosive energy lead to significantly safer mining operations. Case studies demonstrate how the selection of the correct charge mass, explosive type and round design are vital for extracting the exact amount of rock required and preventing spurious damage to the …

Blasting is a critical step that profoundly influences operational efficiency, costs, and long-term success in the mining industry. The current challenges of blasting stem from several key elements, namely regulations, production demands, time, and safety. With most mines working to a regulated blasting schedule, it becomes a delicate …

First Online: 31 May 2023. 150 Accesses. Abstract. The state-of-the-art blasting methodologies have been developed over the years to overcome the challenges of …

The underground blasting for hard rock mining progresses in three major steps as drivage development, stope opening and production blasting. The discussions regarding the …

Accurate blasting practices in underground mining environments have been proven to deliver improvements in safety and productivity and should therefore be considered part of the core foundation upon which a mine is developed and operated. To reinforce the need for precise blasting techniques, Murray & Roberts Cementation …

In mining operations, blasting has become a routine work. With proper understanding of the rocks and blasting methods, the mining work can be done …