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The First step in analysis of slope stability in open pit mines is punctual definition of rock mass characteristics. Several rock mass classification systems have been presented so far in the area of geomechanics. One of the most widely used rock mass classification systems are the geomechanics classification (RMR) by Bieniawiski. The RMR classification is based on the definition of classic membership functions. So characterization of rock masses and determination of their strength may involve some uncertainties d...

The uniaxial compressive strength (UCS) is one of the important input parameters used in rock engineering designs of underground spaces, or rock blasting, drilling, slope stability, excavation rate and many other civil and mining operations. Although, the method is relatively simple, it is time consuming and expensive; also, it requires well prepared rock cores. Therefore, indirect tests are often used to predict the UCS, such as Schmidt hammer, point load index and sound velocity. Besides, these indirect tests ca...

Main objective in this study is research of dangerous dust in working area at the KEK, which inflict many professionals’ illnesses. This study will treat and determinate “Dangerous Coefficient” in duty of the working time, which will create fast monitoring condictions in the working area. In this case will be easy to take preventive actions with regards to procetions workers health.

Bor-UlukД±sla Basin is located in Central Anatolia, southeastern part of Tuz Golu Basin. Tertiary aged sedimentary, volcano-sedimentary and volcanic rock units outcrop at the investigation area. Neogene aged Bor-UlukД±sla Basin is a tectonically controlled graben basin and contains syngenetically deposited sediments. Outcropping Neogene sediments, composed of clastic, clayey, dolomitic, tuffitic, evaporitic and silicified rocks, overlie Paleocene-Eocene marine clastic rocks and Paleozoic metamorphic rocks. The Neo...

In the study area the lowermost unit is the autochthonous GeyikdagД± unit (Upper Cambrian-Lower Ordovician Seydisehir Formation, Upper Jurassic Hacialabaz formation, Upper Cretaceous Cokelen diabase and Upper Cretaceous Saytepe formation). The BolkardagД± unit (Devonian-Lower-Middle Carboniferous Hocalar formation, Upper Permian, Taskent formation and Jurassic-Upper Cretaceous SinatdagД± formation) rests allochthonously on the GeyikdagД± Unit. The Bozkir unit (Bozkir melange with ophiolite and (Mahmuttepe limeston...

The geology and the mineralogy of the clay beds (Doganhisar clays) located southeast of Doganhisar (central Anatolia, Turkey) were studied. Rock units found in and adjacent to the Doganhisar clay beds include metamorphic rocks of pre-Triassic age of the Sultandaglari Massif, the Miocene Ayaslar Formation and the Pliocene Doganhisar Formation as well as alluvium The Lower (?)-Middle Cambrian-Lower Ordovician Caltepe Formation forming the base of the metamorphic rocks is composed of recrystallized limestone and dolo...

This study discusses the results of geotechnical investigation carried out on DoДџanhisar clays in Central Anatolia, Turkey, originated from the weathering of metamorphic basement rocks. The clays of this location constitute an interesting area for researchers due to their geology, thickness, and very high overconsolidation values. In the area, clay deposits are unusually thick, varying from 10 m to 60 m in thickness. For this study, geotechnical investigations were carried out with laboratory tests on disturbed a...

This study includes the application of interaction matrix system given by Hudson in 1992 to underground coal mining conditions. Implication of interaction matrix was realized here at private company owned underground coal mine. After clear description of the interaction matrix and its properties, selected mine workers and engineers worked at the studied underground mine were asked to evaluate predefined 21 evaluation parameters. During the evaluation of the matrix, the parameters were evaluated to obtain critical ...

Mainly high-K, calc-alkaline, Late Miocene to Pliocene volcanic rocks cropped out of Konya area in Central Anatolia, Turkey. The volcanic rocks are predominantly andesitic to dacitic in composition and rarely basalt, basaltic andesite, basaltic trachyandesite and pyroclastics. Mineralogic compositions, major, trace and REE element composition of the investigated rock samples was analyzed. Kaolinite, illite, Ca-montmorillonite, alunite, jarosite, minamiite and silica polymorphs were formed by widespread and intense...

Nowadays the importance of brown coal as a raw material is caused by growing needs of power in the Czech Republic. It namely concerns the only major domestic fossil raw material without which our country would become fully depended on the import of energy resources. Over 70\% brown coal reserves have been exploited in the North- Bohemian Basin today. Opencast mining of brown coal naturally led to vast landscape damages. Therefore reclamation work has acquired great significance. Brown coal is mined in four general...

The aim of this study is to elucidate the neotectonic characteristics of the \cCavuЕџcug\"ol graben. The Cavuscugol graben is 3-8 km wide 28 km long. It is a N-S trending actively evolving extensional structure containing infills of fluvial sediments of Pliocene- Quaternary age. The Cavuscugol graben is bounded on both sides by oblique-slip normal faults. These faults trend N-S and named as IlgД±n Fault on the west and Tekeler Fault on the east. The footwall side of the faults are composed of the pre-Late Cretaceo...

Specific attention has been paid to methods of amelioration for exploration and increasing the efficiency due to importance of dimensional stones industry and its expanding position in non-petroleum export in Iran. Connected scientific management in this industry is essential for the growth of quality efficiency. In this study, one of the several points of view that should be entered in connected scientific management of quarry mines exploration is analyze. It is obvious that deep and lateral expansion of ruptures...

Defining the mineral potential of the sea floor could be handled by different methods, but the prerequisites for each methods is to clear the conditions of precipitation environment such as physico – chemical conditions and also it depends on the type of precipitant. The appearance of any mineral in the sea floor strongly depends on the aqueous environment and the physical prosperities of the mineral. In this article, first of all, I considered the physiographic regions of the sea floor in entire the world, an a...

The most of the mineral raw materials mined out in the Slovak Republic need specific modifications, which are enabling for the next exploitations of raw materials in the other industries. This article provides description of the quartz sand, that are able to use as foundry or glass sand after proper modification. Of course, the sand is needed modify by the proper method, which could allow their use in melting, glass and in the other industry. In this article is provided short report of the most often exploited mod...

The basement of the investigated area consists of Upper Permian – Upper cretaceous aged the Bolkardagi Group and several formations situated in the Bolkardagi Unit, tectonostratigraphic units of the Taurus, viz., Paleocene – Lower Eocene aged the G\"uneydağı formation, and Upper Paleocene – Eocene aged the Halkapınar formation. The limestone of the Guneydagı formation is observed as a basement rock in the area, and is overlied with angular unconformity by Miocene aged the Beykoyu formation, which is made...

Clay sorbents from the North Bohemian Brown Coal Basin represent important but still somewhat neglected accessory raw material. Submitted paper is concerned with relation between mineral structure, sorptive efficiency and reclamation exploitation of these rocks. Characters and localities of main clay sorbents from the North Bohemian Brown Coal Basin are shortly evaluated in an introduction. In next part, methodology of mineralogy survey for these accessory raw materials is stated, it is based on diffract analyse w...

The objective is the study of filtering tissue permeability and the characterization by means of permeability tests, of the process of coal particles retention in breath protection filters. The porosity of a filter, defined as the ratio between the void volume inside its fibres and the total volume, is a static parameter that provides point source information about the initial conditions of the filtering tissue. When excessive deposition of particles on the fibres happens, there is an increase of resistance to the...