In this paper, the blasting parameters are designed based on drilling data of exploration geological stage, geophysical and mechanical mining area, age information, numerical simulation layered rock steps is carried out to optimize parameters. Multiple sets tests were on-site, large block rate, average size satisfaction cost shovel loading efficiency, effect rate set as evaluation indicators, w...

Issue: Processed recycled glass has been sold as an abrasive blasting medium under several brand names in different parts of the United States. However, limited public information is available regarding the performance of finely sized crushed glass in abrasive applications because manufacturers have developed their own proprietary data. Historically, the predominant material used for abrasive b...

Abstract Measuring the blast-induced ground vibration at blasting sites is very important, to plan and avoid adverse effects of in terms peak particle velocity (PPV). However, measurement PPV often requires time, cost, logistic commitment, which may not be economical for small-scale mining operations. This has prompted development numerous regression equations literature estimate from a relativ...

The main objective in production blasting is to achieve a proper fragmentation. In this paper, rock fragmentation the Sarcheshmeh copper mine has been predicted by developing a model using artificial neural network. To construct the model, parameters such as burden to spacing ratio, holediameter, stemming, total charge-per-delay and point load index have been considered as input parameters. A m...

In rock blasting, the effect that stress wave superposition between boreholes has on fragmentation remains controversial. Here, we experimentally study two adjacent by combining model experiment method and high-speed digital image correlation experimental system. Numerical simulations based continuous-discontinuous element are also used to analyze crack initiation mechanism boreholes. The resul...

Modifying blasting practices to achieve a more suitable mill feed size – which varies according to the crushing/grinding circuit – can achieve up to a 30% increase in throughput. Following an initial benchmarking of an operation’s practices, SRK can advise on how value-added blasting will deliver improvements in both mill capacity and overall consistency of performance. SRK employs modelling to...