NEVŞEHİR BÖLGESİ TÜFLERİNİN KAZISINDA KOLLU GALERİ AÇMA MAKİNELERİNİN KULLANILABİLİRLİĞİNİN ARAŞTIRILMASI

Öz

Mekanize kazı sistemlerinde kazı performansının güvenli bir şekilde kestirimi çok önemlidir. Kazı performansının kestirimi; teknik, ekonomik olarak uygulanabilirliğin ve kazı hızlarının kestirimi olarak tanımlanabilir ayrıca kazı işlerinin ekonomikliğini hayati derecede etkilemektedir. Bu kestirim mekanize kazı sistemlerinde kullanılacak makinelerin seçimini kayaç özelliklerine uygun olarak yapılmasını ve bu tür makinelerin verimli çalışmasını sağlamaktadır. Bu durum mekanize kazıyı diğer kazı sistemlerine göre daha avantajlı duruma getirmektedir. Son yıllarda ülkemizde madencilik ve inşaat amaçlı galeri/tünel ve yeraltı deposu gibi yapıların mekanize kazı yöntemiyle açılması artmaktadır. Bu çalışmada, Nevşehir bölgesindeki tüflerin kazısında kollu galeri açma makinalarının kullanılabilirliği bazı performans tahmin yöntemleri kullanılarak araştırılmıştır. Bunun için Nevşehir bölgesinden sağlanan 6 çeşit tüf numunesinin fiziksel ve mekanik özelliklerini belirlemek için kaya mekaniği deneyleri ve spesifik enerji değerini belirlemek için küçük boyutlu kesme deneyleri yapılmıştır. Daha sonra elde edilen veriler ile performans tahmin yöntemlerinden faydalanılarak olası kullanılacak bir kollu galeri açma makinası için performans tahmini yapılmıştır.

Anahtar Kelimeler

• Tüf, Spesifik enerji, Kollu galeri açma makinesi, Küçük boyutlu kesme deneyleri

Investigation of Usability of Roadheaders in Excavation of Nevsehir Region Tuffs

Abstract

In mechanized excavation systems, secure prediction of excavation performance is very important. The prediction of excavation performance can be defined as a technique based on economic feasibility and estimation of excavation rate. It is vital for the economic efficiency of excavation works. This technique enables appropriate selection of excavation machines according to rock characteristics and efficient working of these machines. Thus mechanized excavation techniques have been more advantageous compared to other excavation systems. In recent years, using mechanized excavation methods have been increased in excavating tunnels/galleries and underground deposits for the purpose of civil and mining in Turkey. In this study, usability of roadheaders for excavation of tuffs in Nevsehir region was investigated by using some performance prediction methods. Thus, rock mechanics tests were performed to determine the physical and mechanical properties and rock cutting tests were performed to determine the specific energy values on 6 different tuff samples obtained from Nevsehir region. Then, the data obtained were used for performance predicting of selected roadheaders using some performance prediction methods.

Keywords

• Tuff, Specific energy, Roadheader, Small-scale cutting experiments

Kaynakça

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