Taking into consideration the current situation in the field of energy, the specific conditions of our mining and contemporary achievements in the field of underground exploitation, it can be stated that new circumstances in terms of techno-economic and security parameters of exploitation in the whole system of the exploitation of the coal deposits...

By Edin Fazlić, Semir Fejzić

In the rock salt deposit "Tetima" by analysis of situation and pore (layers) pressures and fracturing pressures development it has been proved that the values of pore and fracturing pressures are quite low (in the part of deposit which is currently exploited) and on the border of use salt water such as fluid for canal rinse in some drilling interva...

By Sanel Nuhanović, Adnan Hodžić, Almir Šabović

Construction schedule becomes part of positive practice of our construction. The construction of Building and Residential Complex Stepa Stepanovic has been used for conducting research among responsible contractors on certain aspects of schedule execution, problems during its executions and use in construction process. The results of the research s...

By Danijela Stanojlović

In the present work, the abilities of natural and synthetic samples of goethite and hematite to remove copper Cu(II) ) and zinc Zn(II) ions from aqueous solutions were compared. Batch adsorption experiments were performed in order to evaluate the removal efficiency of iron oxide samples. The effect of initial metal ion concentration, initial pH and...

By Alexandra Bekényiová, Iveta Štyriaková, Zuzana Danková

Organic matter in Serbian Rendzina soils dependence on altitude and geographic regions was investigated. There was no regular dynamics of carbon and nitrogen content nor in C/N ratio, probably because of slight climatic variation among altitudes and regions, thus negligible differences in vegetation, organic litter and decomposition dynamics. Predi...

By Svjetlana Radmanović (Cupać), Aleksandar Đorđević, Nataša Nikolić

Regional Landfill Brijesnica is located in the northeastern part of Bosnia and Herzegovina, and the western part of the municipality of Bijeljina, and began work in 2010, with an approximate area of 4.5 ha. The sanitary cells are built with protective insulating materials - special geomembranes and other materials that guarantee the protection of g...

By Nebojša Knežević, Ljiljana Vukić, Danijela Knežević

Qualitative characteristics of bauxite deposit „Oštrelj“ are defined through extensive laboratory testing of chemical and mineralogical-petrographic composition, and geomechanical characteristics. Chemical composition has shown that it is a relative poor bauxite with low Al/Si module (2,28). Low values of Al/Si module are result of lower Al2O3 conc...

By Elvir Babajić, Zehra Salkić, Alisa Babajić, Milan Stević, Miodrag Jovović

This paper presents the results of the calculation of coal reserves obtained by classical method (calculation method of geological blocks), which were compared with the results obtained by the calculation using software. Since this area was explored for long period of time and elaborates were done in past, we came to an idea to compare results from...

By Nermin Taletović, Dean Osmanović, Jasmin Isabegović

In this article are presented the procedures and the results of open pit optimal contour "Delici" choice near Ugljevik, Republic of Srpska. By using of LG 3D algorithm for optimization in the Whittle FourXTM is determined a series of open pit shales based on the various income factors (Revenue factor) with iteration of 0.03 of change in coal prices...

By B. Lazar Stojanovic, J. Petar Tomic, Z. Mladen Stevic

World production of pipes is mainly based on the standards of API. However, this does not obligate you to use exclusively for casing manufactured by API standards. The wells that will exploit the hydrocarbons and aggressive media, install the protective casing made of alloy steel not yet covered by API standards. Running casing operation holds a sp...

By Zvonimir Bošković, Vladimir Čebašek, Sanel Nuhanović