Mağmatik Kayaçların Kırılganlık İndekslerinin Değerlendirilmesi

Kaya mekaniğinde kaya malzemesinin bir davranışı olarak tanımlanan kırılganlık, günümüzde kazılabilirlik, aşındırıcılık, malzeme olarak kullanılabilirlik vb. konularının anlaşılmasında önemli veriler sağlamaktadır. Kırılganlık genellikle kayaçların dayanım özellikleri yardımıyla bulunabilmektedir. Bu çalışmanın amacı, Türkiye'nin farklı bölgelerinden alınmış mağmatik kayaçların kırılganlık özelliklerini fiziksel ve mekanik özellikleri ile karşılaştırmaktır. Bunun için öncelikle mağmatik kayaçların petrografik, fiziksel ve mekanik özellikleri belirlenmiştir. Daha sonra, deneysel çalışmalardan elde edilen veriler ile kırılganlık indeksi arasındaki ilişkiler regresyon analizleri ile incelenmiştir. Sonuç olarak, mağmatik kayaçlar ile B3-B4 kırılganlık indeksleri arasında özellikle dayanım açısından anlamlı ilişkiler belirlenmiştir. Kayaçlar petrografik olarak granitik kayaçlar ve bazaltik kayaçlar olarak ayrıldığında ise granitik kayaçların bazaltik kayaçlara göre daha yüksek korelasyon katsayısı değerleri verdiği saptanmıştır.

Assessment of Brittleness Index of Magmatic Rocks

Brittleness which defined as a behavior of rock material in rock mechanics, have provided important parameters for understanding excavability, abrasivity, usability as material, etc. at the present times. Brittleness have generally calculated by the help of strength properties of rocks. The aim of this study is to compare the brittleness properties of magmatic rocks obtained from different parts of the Turkey and with their physical and mechanical properties. Therefore, petrographic, physical and mechanical properties of magmatic rocks were firstly determined. Then, relations between parameters obtained from experimental studies and brittleness indices are examined with regression analysis. As a result, especially in terms of strength were determined meaningful relationship between brittleness indexs and igneous rocks with B3-B4. When the rocks were divided into granitic rocks and basaltic rocks according to their petrographic properties, granitic rocks were given higher correlation coefficient values then basaltic rocks.

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