DÜŞEY KAYAÇ KESME SETİ İLE KOLLU GALERİ AÇMA MAKİNESİ PERFORMANS TAHMİNİ: BİR ÖRNEK UYGULAMA

Year 2018, Volume: 57, 63 - 71, 15.12.2018

Serdar Yaşar , Ali Osman Yılmaz

https://doi.org/10.30797/madencilik.493199

Abstract

Kollu galeri açma makineleri madencilik ve tünelcilik sektöründe sıklıkla kullanılan kazı

makinelerindendir. Diğer kazı makineleri gibi, kazı yapılacak formasyona uygun olarak

seçilmeleri gerekmektedir. İlave olarak, formasyonda gerçekleştirecekleri kazı hızlarının proje

safhasında belirlenmesi gerekmektedir. Bu amaç için geliştirilen çeşitli yöntemler bulunmaktadır.

Bu yöntemlerden en temsili yöntem olarak kabul edileni kaya kesme deneyleridir. En kesin

yöntemler olmalarına rağmen, az sayıda araştırma merkezinde bulunmaları sebebiyle kullanımı

yaygınlaşamamaktadır. Bundan dolayı, halihazırda bulunan kaya kesme deneylerine alternatif

olabilecek yeni düzeneklere ihtiyaç vardır.

Bu amaçla, hemen hemen tüm kaya mekaniği laboratuvarlarında bulunan hidrolik eğilme

preslerine bir eklenti olarak geliştirilen taşınabilir ve seri üretime uygun bir deney düzeneği

olarak getirilen düşey kayaç kesme seti (DKKS) tanıtılmıştır. Çalışma kapsamında, çeşitli

magmatik kayaç numuneleri üzerinde konik keskiler ile etkileşimli ve etkileşimsiz kaya kesme

deneyleri gerçekleştirilmiştir ve DKKS ile tam boyutlu kesme deneylerinin gerçekleştirilebileceği

gösterilmiştir. Ardından, bir yeraltı soğuk hava deposunda çalışan bir kollu galeri açma

makinesinin kazı hızları DKKS’de yapılan kaya kesme deneyleri ile tahmin edilmeye çalışılmıştır.

Sonuç olarak, bu sahada çalışan makinenin net kazı hızı DKKS ile gerçeğe yakın olarak tahmin

edilmiştir.

Keywords

Spesifik enerji, Kaya kesme deneyi, Performans kestirimi, Kollu galeri açma makinesi

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