Investigation of the relations between rock brittleness and drilling rate index

Yarali, O.

In this study, unaxial compressive strength, indirect (Brazilian) tensile strength and dirilling rate index (DRI) have been carried out on the rock samples colected 16 different area. The drilling rate index of rocks was assessed on the basis of two laboratory tets, the brittleness test and Sievers' miniature drill test. Three brittleness concepts, which are used two brittlenes measurements acceppted (B1, 132) in literature, together with a new brittleness concept (B3) were used in order to determine of brittleness of rocks. A meaningful relationships between the measuring brittleness of B1 an ...Daha fazlası

Konferans Nesnesi 2007 PROCEEDINGS OF THE 20TH INTERNATIONAL MINING CONGRESS AND EXHIBITION OF TURKEY, NO 132 , pp. 2 - 224 473 Görüntülenme

Ethics education in mining engineering

Gercek, H.

20th International Mining Congress and Exhibition of Turkey (IMCET 2007) -- JUN 06-08, 2007 -- Ankara, TURKEY WOS: 000248289300020

Konferans Nesnesi 2007 PROCEEDINGS OF THE 20TH INTERNATIONAL MINING CONGRESS AND EXHIBITION OF TURKEY, NO 132 , pp. 2 - 214 415 Görüntülenme

Mining industry and sustainability

Kaymakci, E. | Yuece, A. E. | Dogan, T.

20th International Mining Congress and Exhibition of Turkey (IMCET 2007) -- JUN 06-08, 2007 -- Ankara, TURKEY WOS: 000248289300028

Konferans Nesnesi 2007 PROCEEDINGS OF THE 20TH INTERNATIONAL MINING CONGRESS AND EXHIBITION OF TURKEY, NO 132 , pp. 2 - 301 459 Görüntülenme

Stability analyses of solution mining underground storage openings

Oezarslan, A. | Genis, M. | Bilir, M. E. | Oezkan, I.

Underground openings should meet the stability requirements conforming with their function during their service life. The design of underground salt caverns requires the analysis of stability of cavern over the planned use (e.g. salt extraction, storage of gas and oil) and operating conditions. The most important parameters to be taken into consideration in the design of a salt cavern are; depth, in situ stresses, cavern geometry, internal pressure conditions, mechanical (strength, deformation and rheological) properties of rock salt. In salt caverns for storage purposes, the internal cavern p ...Daha fazlası

Konferans Nesnesi 2007 PROCEEDINGS OF THE 20TH INTERNATIONAL MINING CONGRESS AND EXHIBITION OF TURKEY, NO 132 , pp. 4 - 58 533 Görüntülenme

Benefication of the Zonguldak fine coal by using the Jameson flotation cell

Hacifazlioglu, H. | Toroglu, I.

In this study, the enrichment of the Zonguldak fine coal by using a homemade pilot-scale Jameson flotation cell was investigated. In the result of the experimental studies, a clean coal product ash 12.60% was produced from the 46.70% ash feed with a 77.61% combustible recovery by applying only scavenger stage. Besides, Jameson flotation cell design and operating parameters were optimized for coal flotation. These parameters were the nozzle height Jet length), the immersion depth of the downcomer, the collector amount, the frother amount, the percentage of solids and the rate of wash water.

Konferans Nesnesi 2007 PROCEEDINGS OF THE 20TH INTERNATIONAL MINING CONGRESS AND EXHIBITION OF TURKEY, NO 132 , pp. 7 - 79 491 Görüntülenme

Value at risk (VaR) in energy markets: Effectiveness of VaR in managing energy price risk

Korkmaz, T. | Erdogan, E. | Bostanci, A.

All over the world in recent years, energy products are exposed to high price volatility due to the increasing deregulation and liberalization efforts in energy sector, imbalance of supply and demand, increasing needs of energy, storage-delivery problems and etc. Price fluctuations have negative affect on both suppliers and consumers operating in energy markets; as a result, price risk needs to be hedged. One of the effective ways of price risk hedging purposes is using VaR methods. VaR is a generally accepted method that assesses price risk in a single number by using statistical and simulati ...Daha fazlası

Konferans Nesnesi 2007 PROCEEDINGS OF THE 20TH INTERNATIONAL MINING CONGRESS AND EXHIBITION OF TURKEY, NO 132 , pp. 2 - 293 541 Görüntülenme