Effect of cutting speed on conical pick cutter performance obtained from Portable Linear Rock Cutting Machine (PLCM)

Araştırma sonucu: ???type-name???Konferans katkısıbilirkişi

Özet

Use of mechanical miners (tunnel boring machine, roadheader, continuous miner etc.) in both mining and civil industries has been considerably increased in recent years in the world. If mechanical miners are not properly designed and selected, some problems arise such that advance rates may decrease dramatically and significant economic losses may be encountered. Rock cutting tests in different scales are the most widely used experimental methods for properly selection and design of mechanical miners and optimizing their performances. Previous studies indicated that the effect of cutting speed on cutting performance was contradictory in both laboratory-scale cutting (lower speeds usually up to ~25 cm/s) and cutting in the field (higher speeds, up to a few meters per second) with real-life mechanical miners. This study investigates the effects of laboratory-scale cutting speeds on cutting performance of a conical pick cutter. A previously developed portable linear rock cutting machine (PLCM), which cuts at a constant speed (3 cm/sec), is modified so that the cutting speed can be adjusted at three levels (3, 12.5 and 25 cm/s). Then, laboratory rock cutting experiments are performed by using PLCM on a rock sample (beige marble) at three different cutting speeds to analyze the effect of cutting speed on cutting performance (mean normal and cutting forces, and specific energy). Depth of cut values used in the tests are 2, 3 and 5 mm in single spiral cutting mode at constant line spacing of 10 mm. The results indicate that laboratory-scale cutting speeds affect the normal and cutting forces, and specific energy. The studies should be continued with some other rock types, other cutter types, and different experimental conditions.

Orijinal dilİngilizce
Ana bilgisayar yayını başlığıExpanding Underground - Knowledge and Passion to Make a Positive Impact on the World- Proceedings of the ITA-AITES World Tunnel Congress, WTC 2023
EditörlerGeorgios Anagnostou, Andreas Benardos, Vassilis P. Marinos
YayınlayanCRC Press/Balkema
Sayfalar1157-1165
Sayfa sayısı9
ISBN (Basılı)9781003348030
DOI'lar
Yayın durumuYayınlandı - 2023
EtkinlikITA-AITES World Tunnel Congress, ITA-AITES WTC 2023 and the 49th General Assembly of the International Tunnelling and Underground Association, 2023 - Athens, Greece
Süre: 12 May 202318 May 2023

Yayın serisi

AdıExpanding Underground - Knowledge and Passion to Make a Positive Impact on the World- Proceedings of the ITA-AITES World Tunnel Congress, WTC 2023

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???event.eventtypes.event.conference???ITA-AITES World Tunnel Congress, ITA-AITES WTC 2023 and the 49th General Assembly of the International Tunnelling and Underground Association, 2023
Ülke/BölgeGreece
ŞehirAthens
Periyot12/05/2318/05/23

Bibliyografik not

Publisher Copyright:
© 2023 The Author(s).

Finansman

The study includes a part of PhD studies of Faraz Shoaee. The authors are grateful for the support of Istanbul Technical University (ITU) Research Foundation, the Scientific and Technological Research Council of Turkey (TUBITAK 218M400), the company of E-BERK Tunneling and Foundation Technologies for supplying cutters and all research people supported this project.

FinansörlerFinansör numarası
Türkiye Bilimsel ve Teknolojik Araştırma Kurumu218M400
Istanbul Teknik Üniversitesi

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