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

The vulnerability results of groundwaterbodies of southeastern Bosnia are shown in this paper. On the examined area 27 groundwater bodies were extracted, where 12 groundwaterbodies are in rocks with intergranular porosity and 15 groundwaterbodies are in rocks with karst-fissure porosity. All of the groundwater bodies were analysed through DRASTIC, ...

By Dado Srkalović, Željka Stjepić Srkalović

Within the project task for the road M-17,3 Buna-Neum, section Neum-Stolac, several variants have been considered and the section has been divided into several sub-sections. The sub-section Stari NeumKiševo in the length of cca 3 km has already been built, as well as the sub-section of Kiševo-Bročanac, with length cca 8,5 km. Within the sub-section...

By Mevlida Operta, Suada Pamuk

Location for the construction of the Ugljevik 3 Thermal Power Plant is planned within the complex of existing Thermal Power Plant Ugljevik 1 and previously commenced Thermal Power Plant Ugljevik 2. During the field research, the presence of the faults was identified, which is particularly significant for the part of planned main facilities of therm...

By Neđo Đurić, Slobodan Nedeljković, Lazar Stojanović

The paper present a review of the geotechnical characteristics of the terrain at the location of the bridge No. 1 of motorway Lašva – Donji Vakuf, subsection interchange Lašva – interchange Kaonik.Also, given the suggestion of foundation structures for each column, as well as the calculated bearing capacity...

By Zlatan Talić, Đenari Ćerimagić

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

The state of stress around cavities of the revolving ellipsoidal shape (prolate or oblate) in the extreme cases of their degeneration is a very complex problem. Namely, the shape of cavities is defined by an appropriate curvilinear coordinate system, which contains hyperbolic and trigonometric functions. In this paper, the treatment of revolving el...

By Dragan Lukić, Elefterija Zlatanović

Implementation of major construction projects thanks are due to the technological development of materials and equipment to perform. Development of equipment for piles, allowed this type of structure a large application, as in the system of basic structural elements, as well as providing (temporary or permanent) construction site. Influences on the...

By Svjetlana Vlaški