Effect of Burden to Hole Diameter Ratio on Rock Fragmentation by Blasting using LS-DYNA

Shahrin, Muhammad Irfan; Abdullah, Redzuan; Sa’ari, Radzuan; Alel, Mohd Nur Asmawisham; Jeon, Seokwon; Jeon, Byungkyu

doi:10.1201/9780429327933-112

Cited by 3 publications

(2 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Thus, an investigation into stemming materials becomes essential. However, previous research has mainly focused on comparing stemming with non-stemming or analyzing stemming movement and optimizing stemming length [4,[17][18][19][20][21], leaving relatively limited attention to studies specifically targeting stemming materials. Zhang et al investigated the rock fragmentation effects and gas ejection when using steel stemming [22].…”

Section: Introductionmentioning

confidence: 99%

Experiment Study of Stemming Length and Stemming Material Impact on Rock Fragmentation and Dynamic Strain

Shi,

Zhang,

Qiu

et al. 2023

Sustainability

View full text Add to dashboard Cite

Stemming length and stemming materials are crucial factors in blasting design, which affect the sustainability of mining. This study investigates the influence of stemming length and stemming material on rock fragmentation, stemming recoil, and surface strain response through 15 small-scale model blasting tests. The results indicate that when using clay as a stemming material, increasing the stemming length facilitates rock fragmentation and reduces the stemming recoil area. The strain measurements show that both tensile and compressive strain peaks on the blasting crater surface increase with the growth of stemming length, while the strain peaks on the upper surface decrease. A comparative analysis of different stemming materials reveals that clay performs the best, exhibiting the highest total weight of fragments, blasting crater size, and fragmentation energy utilization. Strain results indicate that clay stemming generates more significant strain peaks and higher strain loading rates on the blasting crater surface, favoring a more concentrated application of explosive energy on the crater surface and improving rock fragmentation. Sand + clay stemming yields fragments more concentrated in medium-sized particles than clay stemming. If the blasting goal is to increase the utilization efficiency of explosive energy and reduce the hazards of stemming recoil, it is recommended to use clay stemming. In addition, if uniform fragmentation is desired (reducing large and fine particles), a combination of sand + clay stemming can be used. These findings have practical implications for optimizing blasting design and engineering applications.

show abstract

Section: Introductionmentioning

confidence: 99%

Experiment Study of Stemming Length and Stemming Material Impact on Rock Fragmentation and Dynamic Strain

Shi,

Zhang,

Qiu

et al. 2023

Sustainability

View full text Add to dashboard Cite

show abstract

“…Various factors may contribute to the presence of these indications in blast results. One potential cause could be the inadequate adjustment of blast design parameters to align with the geological conditions of the block zone(Zhang et al, 2023;Shahrin et al, 2019;Taiwo, 2022). By re ning these controllable variables, blasting engineers can manage the dispersion of explosive energy and tailor the blast design to suit the speci c conditions of each designated area.…”

mentioning

confidence: 99%

Practical Guidelines for Utilizing WipFrag Software to Assess Oversize Blast Material Using Both Orthomosaic and Digital Images

Taiwo,

Palangio,

Savaliya

et al. 2024

Preprint

View full text Add to dashboard Cite

Oversize material resulting from blasting presents a notable drawback in the transportation of run-off-mine material due to increased expenses associated with handling, decreased efficiency in loading, and greater wear on digging equipment. Its irregular size and weight demand additional resources and time for secondary breakage, impacting overall productivity and profitability. This paper addresses the limitations of interpreting image analysis software results and applying them to the assessment of blast-generated oversize materials. This comprehensive guide utilizes both orthomosaic and digital photos to provide critical approaches for optimizing fragmentation analysis and improving decision-making in mining operations. It briefly covers post-blast assessment, blast block heat map interpretation, and material loading decision-making recommendations.

show abstract

A review of the influence of blast fragmentation on downstream processing of metal ores

Kinyua

Zhang

Kasomo³

et al. 2022

Minerals Engineering

View full text Add to dashboard Cite

Effect of Burden to Hole Diameter Ratio on Rock Fragmentation by Blasting using LS-DYNA

Cited by 3 publications

References 1 publication

Experiment Study of Stemming Length and Stemming Material Impact on Rock Fragmentation and Dynamic Strain

Experiment Study of Stemming Length and Stemming Material Impact on Rock Fragmentation and Dynamic Strain

Practical Guidelines for Utilizing WipFrag Software to Assess Oversize Blast Material Using Both Orthomosaic and Digital Images

A review of the influence of blast fragmentation on downstream processing of metal ores

Contact Info

Product

Resources

About