Purpose. To treat the stability problem of phosphate Kef Essennoun quarry in mining field Jebel Onk located Northeastern part Algeria. Methodology. achieve these objectives, we started by monitoring unstable area, using two systems: control stations and inclinometer. We then carried out a digital assessment Northwestern edge under current operating conditions exploitation. After that, proposed ...

A new type of cosmic-ray experiment is under construction in the Pyhäsalmi mine in the underground laboratory of the University of Oulu, Finland. It aims to study the composition of cosmic rays at and above the knee region. The experiment, called EMMA, will cover approximately 150 m of detector area. The array is capable of measuring the multiplicity and the lateral distribution of underground ...

In order to prevent landslide and collapse in the mining area, it is essential not only gain a full understanding of surface deformation information about open-pit area surrounding dumps, but also closely monitor development deformation. Small baseline set (SBAS) technology can be applied extract high-resolution spatial-temporal from areas. Due decoherence, however, difficult obtain effective o...

abandoned surface mine excavations can be a major environmental, social and/or human healthproblem for the mining industry as well as for the community living nearby. this problem is exacerbated by therapidly growing population encroaching on areas of historic mined lands. the aim of this studywas to assess thesafety status of the historic nyala mine excavation with the purpose of coming up wit...

The activities of mining exploitation in Campo de Jales were performed in an uncontrolled way and gave rise to serious environmental contamination: rubbish depositories have been accumulated with no treatment or maintenance. An investigation developed around Jales Mine showed the existence of some chemical impact originated from the waste produced during mining activities. Some "black spots" fo...

Rockburst is one of the major problems in rock underground engineering and mechanics. To make a risk assessment rockburst improve mine safety index, some evaluation systems for propensity have been proposed applied, progress has made study high-value mines single systems, but these are still immature deep low medium grade phosphate with more complex influencing factors. Therefore, to solve this...

this study was carried out for the purpose of investigating the issue of tailings dams as a potential source of contamination by trace elements in soils at the sidi bou othmane mine in the marrakech region, morocco. soil samples taken from depths of up to 15 cm and within a radius of 50 m from the tailings dams, were analyzed for cd, cu, pb and zn using atomic absorption spectrometry. average c...

Metal price is one of the most important parameters in the calculation of cut- off grade. The cut- off grade has the main role in determination of mine layout. Mine layout actuates mineable reserve, mine life and economic profitability. Not considering the uncertainty in metal prices can lead to a non-optimal layout. In this paper optimum underground mine layout is determined by expected utilit...

phosphorus (p) is one of the most vital elements for all living organisms which acts as aconstituent of essential biomolecules such as nucleic acids, phospholipids, and phosphosugars,and as a major contributor to almost all metabolic reactions including photosynthesis,respiration, and energy delivery. it is one of the most needed nutrients for plant growth anddevelopment. despite high levels of...