The Pau Branco mine supplies two blast furnaces with iron ore lumps, and currently, charcoal consumption for pig iron production accounts for 47% of the blast furnaces’ operational cost. A geometallurgical model is presented to support an economic study considering reserve volumes, product quality, and operational costs based on the metallurgical performance of different iron ore typologies. Sa...

The closure of coal mines is closely linked to the change in European energy policy regarding reduction CO2 emissions. process closing underground has impacted many mining companies, especially Europe. Along with decision close a mine, number steps have be taken regard its liquidation. One these begin flooding excavations water. liquidation an mine brings it problems and dangers related to, amo...

Existing activity recognition approaches in the smart home domain suffer from poor human activity models. Combining expertise from cognitive ergonomics and ubiquitous computing, we discuss the hard technical challenges to address when leveraging a realistic model of human activity. We present the architecture of a prototype smart home system that we are developing and show the gap that exists b...

We study a daily mine planning problem where, given a set of blocks we wish to mine, our task is to generate a mining sequence for the excavators such that blending resource constraints are met at various stages of the sequence. Such time-oriented resource constraints are not traditionally handled well by automated planners. On the other hand, the remaining problem involves finding node-disjoin...

Open pit mining is an extensively-used method in Indonesian coal mining. This characterized by the formation of mine void at end life-of-mine (LOM) due to insufficient material backfill mine-out areas. Mine voids are legally accepted as one closure options and categorized “<em>Reklamasi Bentuk Lain</em>” - a miscellaneous reclamation option (Decree Minister Energy Mineral Resources/...

Jiu Valley is currently the only national mining basin capable of producing pit coal. Romania has undergone an extensive industrial restructuring in last 30 years, including mining, which led to job losses, generated economic-social and environmental effects that have severely affected quality life inhabitants communities. As a consequence, Mining Strategy 2017 - 2035 was elaborated. The paper ...

in the past, rock slope stability analysis were performed either graphically or using a hand-held calculator, but nowadays there are variety of slope stability analysis which can be used according to the field condition and potential failure mode. in 2-d analysis, effect of convex and concave walls are neglected, however concave slopes are believed to be more stable than straight walls due to t...