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A structural analysis on the used in processes of open cast mining formula is made and some functional dependences are deduced. This shows the relation between optimal speed on temporary rail ways and the productivity of mounding excavator – single – bucket and with many buckets.A structural analysis on the used in processes of open cast mining formula is made and some functional dependences are deduced. This shows the relation between optimal speed on temporary rail ways and the productivity of mounding excav...

This study aims at understanding the activity of northern branch of the North Anatolian Fault. The AvcД±lar and adjacent areas were chosen as a study area as the Marmara Earthquake had caused severe damage and fatalities in Avcilar. We carried out a fieldwork in the area and found out surface fractures. We then integrated in to our map existing seismological-seismic and damaged distribution data. We propose that the damage to the W of Д°stanbul, especially in Avcilar was caused mainly by re-activation of younger f...

The flyrock from blasting operations can harm, damage or expose the workers of a particular worksite or the dwellers of a wider area of extractive activities (quarry, mine, construction site) to damage risks; in some cases even death might be caused, too. There are certain and different ideas and theoretical approaches regarding the evaluation of causes and the implementation of flyrock prevention measures to be taken, as well. This implementation, however, in practice requires a more delicate and rather professio...

Paste backfill is composed of a mixture of mine tailings, process and/or fresh water for the desired solid-water consistency and hydraulic binder to ensure a target mechanical resistance. This paper presents some studies undertaken on the strength development and deformation behaviour of paste backfill mixtures made from a Turkish zinc mine tailings. A series of laboratory experiments was conducted to determine the strength and deformation properties of paste mixtures with binder content ranging from 4 to 7 wt\% a...

General environmental problems generated during blast activities in open pit mining are ground vibrations, air pressure, fly rock, dust and poisonous gases and fumes. In some cases, these problems can be the source of some continual disagreements (fear, right and unrighteous complaints, etc.) on inhabitants living close to a blast-based production in a quarry as well as damage on the buildings situated nearby. In this study, the ground vibrations produced by blasting operations performed at a limestone quarry were...

Regional development problems constitutes in present days, one of the major issues of European Union activity. As consequence, a country which strives to the European Union member statue must integrate in the spirit of European realities, showing an outstanding interest to prepare its ground in the spirit of Union’s requirements for her member’s countries, developing a coherent and active regional policy. Therefore the work follows to identify the main action directions of European Union regarding the regional...

After a period of more than four decades of centralized management, Romania has decided to return to local autonomy principle, in this way transferring major and concrete responsibilities to the local administration. Currently 17 municipalities, each with more than 150.000 inhabitants, have benefited from capital investment programs financed mainly by EU and IFI for rehabilitation of their water and wastewater infrastructure. In Romania, out of 263 urban localities, around 230 are considered small and medium-sized...

The transport represents one of the main sides of the mining technological process, the preponderance of the expenses of this activity reported to the expenses for producing a tone of useful mineral substance extracted from the underground reaching almost 40\%. A good transport system presumes to assure a permanent continuity with passive time cycles having minimum values and functioning in well correlated cascade dimensionally and capacitive speaking. It’s obvious that a transport flow is performing if starting...

The first version of ASMIв„ў is created in the period 1975-1980. we offer the third version of ASMIв„ў entended for modern PC operation with Windfows and integrated with popular program systems, such as AutoCADВ®, ExcelВ® and WordВ®. In all three versions the creators are following the ideology of ASMIв„ў: 1. this is a specialized system directed mainly to markshader insurance of open mines; 2. the algorithms, big part of wich are original reflect the success of the markshader and geodetic science, technology and ...

Nickeliferrous laterite is a source of ferronickel alloy extracted by a pyro-metallurgical process. Laterite deposits found in Greece are mainly secondary depositions and their nickel content is about 1\%. Beneficiation of the run of mine ore is limited to the +1 mm fraction by magnetic or gravitational processes and its effect is rather unsatisfactory due to the insufficient liberation of the nickel bearing minerals. The mineralogical structure of the ore consists mainly of hematite nodules (pissoids) and quartz ...