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Bu çalışmada, altı farklı açık maden ocağında (4 adet kalker, 1 adet kil ve 1 adet feldspat ocağı) yapılan delme çalışmaları sırasında delici uç ve makine çalışma parametreleri (darbe miktarı, baskı kuvveti, hava basıncı ve dönme hızı) sabit tutularak delme hızları yerinde ölçülmüştür. Bu ocaklardan, laboratuvar deneyleri için şekilsiz bloklar ve delme işleminden çıkan kırıntılardan numuneler alınmıştır. Alınan kırıntı numunelerden pasa irilik katsayısı, blok numunelerden ise kayaçların fiziksel ve mekanik özellikleri belirlenmiştir. Ayrıca bu kaya birimlerinin delme oranı indeks (DRI) değerlerini belirlemek için Sievers minyatür delme deneyi ve kırılganlık deneyleri yapılmıştır. Çalışmalar sonunda, araziden alınan delme hızı verileri ile laboratuvarda yapılan deney sonuçları birlikte değerlendirilerek istatistiksel olarak irdelenmiştir. Arazi üzerinde ölçülen ilerleme hızları ile kayacın fiziksel ve mekanik özellikleri arasında anlamlı ilişkiler elde edilmiştir. Laboratuvar ortamında belirlenen delinebilirlik değerlerinin delme-patlatma çalışmalarında ilerleme hızının tahmin edilmesinde güvenilir bir şekilde kullanılabileceği belirlenmiştir.
In this study, during the mining work done in six different open mining stores (4 stores, 1 stores and 1 stores of feldspat) the mining speeds were measured in place by keeping the decoction ends and machine work parameters (the amount of strike, pressure force, air pressure and rotation speed) fixed. The samples were taken from these shells, unformed blocks and fractures from the digging process for laboratory experiments. The resulting breakthrough samples have determined the passage rate, and the block samples have determined the physical and mechanical characteristics of the rockets. Also, Sievers miniature grinding experiments and vulnerability experiments have been conducted to determine the values of the dive rate index (DRI) of these rock units. At the end of the studies, the grinding speed data taken from the soil and the results of the laboratory experiments were statistically evaluated together. Significant relationships have been achieved between the speed of progress measured on the ground and the physical and mechanical characteristics of the ski. It has been determined that the decayability values determined in the laboratory environment can be reliably used in the prediction of the progress rate in dive-exposure studies.
In this study, drilling speeds were measured in situ by keeping the drill bit and machine working parameters (impact, pressure, air pressure and rotation) constant during drilling-blasting operations on six different open mines (4 limestones, 1 clay and 1 feldspar quarries). From these quarries, shapeless blocks samples and rock chipping specimens from blasting holes were taken for laboratory experiments. The physical and mechanical properties of the rocks from the block samples and coarseness index from chip samples were determined. Sievers miniature drilling tests and brittleness tests were also performed to determine the drilling rate index (DRI) values of the rocks. As a result, the results of the laboratory tests and insitu drilling data were evaluated statistically. Significant relationships were found between the physical and mechanical properties of the rock and the measured drilling speed. It has been determined that the drillability values determined in the laboratory can be reliably used in predicting the rate of penetration in drilling-blasting operations.
Alan : Mühendislik
Dergi Türü : Ulusal
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