Ali Osman YILMAZ, Serdar YAŞAR

2819

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

Kollu galeri açma makineleri madencilik ve tünelcilik sektöründe sıklıkla kullanılan kazımakinelerindendir. Diğer kazı makineleri gibi, kazı yapılacak formasyona uygun olarakseçilmeleri gerekmektedir. İlave olarak, formasyonda gerçekleştirecekleri kazı hızlarının projesafhasında belirlenmesi gerekmektedir. Bu amaç için geliştirilen çeşitli yöntemler bulunmaktadır.Bu yöntemlerden en temsili yöntem olarak kabul edileni kaya kesme deneyleridir. En kesinyöntemler olmalarına rağmen, az sayıda araştırma merkezinde bulunmaları sebebiyle kullanımıyaygınlaşamamaktadır. Bundan dolayı, halihazırda bulunan kaya kesme deneylerine alternatifolabilecek yeni düzeneklere ihtiyaç vardır.Bu amaçla, hemen hemen tüm kaya mekaniği laboratuvarlarında bulunan hidrolik eğilmepreslerine bir eklenti olarak geliştirilen taşınabilir ve seri üretime uygun bir deney düzeneğiolarak getirilen düşey kayaç kesme seti (DKKS) tanıtılmıştır. Çalışma kapsamında, çeşitlimagmatik kayaç numuneleri üzerinde konik keskiler ile etkileşimli ve etkileşimsiz kaya kesmedeneyleri gerçekleştirilmiştir ve DKKS ile tam boyutlu kesme deneylerinin gerçekleştirilebileceğigösterilmiştir. Ardından, bir yeraltı soğuk hava deposunda çalışan bir kollu galeri açmamakinesinin 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 tahminedilmiştir.

ROADHEADER PERFORMANCE PREDICTION WITH USING VERTICAL ROCK CUTTING RIG: A CASE STUDY

Roadheaders are frequently used in mining and tunnelling works. Similar with other excavation machines, roadheaders should be selected properly to the relevant rock formation. In addition to the selection, cutting rates of these machines should be estimated during project phase. Several methods were proposed so far for this respect. The best choice for performance prediction is the rock cutting tests. Despite to being the best choice, these cutting tests cannot be more widespread due to non-availability in many research centers. Therefore, alternative rock cutting testing arrangements should be proposed as an alternative to present testing rigs. With this respect, vertical rock cutting rig (VRCR) which is mobile and ready for mass production was introduced as an attachment to hydraulic flexural bending machines which can be found in almost all rock mechanics laboratories. Within the scope of the study, several igneous rock samples were subjected to rock cutting test with conical picks in both relieved and unrelieved cutting mode. Finally, cutting rate of a roadheader working in an underground cold storage tunnel was predicted with cutting tests in VRCR. As a result, cutting rate of the roadheader was predicted correctly with using VRCR.
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Bilimsel Madencilik Dergisi-Cover
  • ISSN: 2564-7024
  • Yayın Aralığı: Yılda 4 Sayı
  • Yayıncı: TMMOB Maden Mühendisleri Odası
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DÜŞEY KAYAÇ KESME SETİ İLE KOLLU GALERİ AÇMA MAKİNESİ PERFORMANS TAHMİNİ: BİR ÖRNEK UYGULAMAI

Ali Osman YILMAZ, Serdar YAŞAR