Drilling and blasting are the two most significant operations in open pit mines that play a crucial role in downstream stages. While previous research has focused on optimizing these operations as two separate parts or merely in a specific parameter, this paper proposes a system dynamic model(SDM...
Step2: CNC turning, CNC turning and milling compound processing, 3/4/5 axis CNC milling, drilling, wire-cutting, EDM, grinding etc. Step3: Surface treatment Surface Anodize, Plating, Brushing, Polishing, Blackened, Powder coating, Sandblasting, Laser engraving, ED-...
Step2: CNC turning, CNC turning and milling compound processing, 3/4/5 axis CNC milling, drilling, wire-cutting, EDM, grinding etc. Step3: Surface treatment Surface Anodize, Plating, Brushing, Polishing, Blackened, Powder coating, Sandblasting, Laser engraving, ED- Coating, Chromat...
While previous research has focused on optimizing these operations as two separate parts or merely in a specific parameter, this paper proposes a system dynamic model (SDM) for drilling and blasting operations as an interactive system. In addition, some technical and economic uncertainties such as ...
Drilling and Blasting are core operations in a mine. They impact all the downstream operations and their costs. Digital technologies exist for optimizing both drilling and blasting for many years. However, these technologies have largely been non-integrated and non-real time. This gap results in ...
Expanding blast patterns to near the limit of an explosives' ability to do the necessary amount of work is a common practice to reduce drilling and blasting costs. Choosing less expensive explosives such as ANFO vs. emulsion, bulk product versus packaged product, etc. are also common cost ...
Backbreak is an undesirable outcome in blasting operations caused by factors such as equipment failure, improper fragmentation, unstable mine walls, reduced drilling efficiency, and other issues that contribute to increased mining operation costs. To overcome these problems effectively, this study ...
It was demonstrated that the new design with indented blast holes at setup room overcame the drawbacks of conventional destress blasting including heavy and slow borehole drilling work in hard roof, large amount of usage of explosive, etc., as blast holes were less....
Therefore, this model selected five input variables, comprising maximum charge per delay, distance, powder factor, and sub-drilling, and RQD. Once the input assortment was performed, five neural network models, including a typical artificial neural network (ANN) and ANNs with weight optimization (...
Rock fragmentation plays a critical role in large-scale quarrying operations because of its direct effects on the costs of drilling, blasting, secondary blasting and crushing. In this aspect, it is essential to consider rock fragmentation in blasting design. The optimum blasting pattern to excavate...