Experimental study of rock fragmentation under different stemming conditions in model blasting

Rock Stability under Different Fluid Flow Conditions

Prediction of fragmentation due to blasting using mutual information and rock engineering system; case study: Meydook copper mine

One of the key outcomes of blasting in mines is found to be rock fragmentation which profoundly affects downstream expenses. In fact, size prediction of rock fragmentation is the first leap towards the optimization of blasting design parameters. This paper makes an attempt to present a model to predict rock fragmentation using Mutual Information (MI) in Meydook copper mine. Ten parameters are c...

Implementation of Hyperbolic Tangent Function to Estimate Size Distribution of Rock Fragmentation by Blasting in Open Pit Mines

Rock fragmentation is one of the desired results of rock blasting. So, controlling and predicting it, has direct effects on operational costs of mining. There are different ways that could be used to predict the size distribution of fragmented rocks. Mathematical relations have been widely used in these predictions. From among three proposed mathematical relations, one was selected in this stud...

Prediction of Rock Fragmentation Due to Blasting in Sarcheshmeh Copper Mine Using Artificial Neural Networks

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...

Synchronized Blasting Demolition of Workshop and Chimney Under Complicated Conditions

Received: March 17, 2017 Revised: July 25, 2017 Accepted: August 18, 2017 Abstract: Introduction: For technical renovation of the thermal plant, one frame structure workshop of 50,000 m construction area and one reinforcement concrete chimney of 150m height shall be demolished by blasting in the same time. The engineering environment is very complicated and the accommodation space for the struc...