Proposal of some cuttability indexes for evaluating the performance of mechanical excavators using conical picks

In this study, rock cuttability indexes are evaluated based on peak cutting force, specific energy and rock strength. For this purpose, a number of samples were collected from different parts of China and the mechanical properties of the samples were initially determined. Then, a series of cutting tests in unrelieved cutting mode were conducted at the linear rock cutting rig. The tests were performed at the cutting depths ranging from 3 mm to 18 mm. As a result of the tests, the effect of a significant cuttability index, which is the ratio of cutting force to cutting depth (FC/d), on the uniaxial compressive strength was investigated. Based on the acquired data from linear cutting test rig, the correlations between the ratio of FC/?c and cutting depth and also between the ratio of (SE/?C) and cutting depth were examined and their validity to be as new cuttability indexes were checked. High correlation coefficients among the cutting variables verified that the new cuttability index values can be successfully used for designing the cutterheads or the drums of mechanical excavators as well as evaluating their cutting efficiency. © 2019 Society for Mining, Metallurgy and Exploration. All rights reserved.

Yazar Su O.
Wang X.
Yayın Türü Conference Object
Tek Biçim Adres https://hdl.handle.net/20.500.12628/7222
Koleksiyonlar Araştırma Çıktıları | WoS | Scopus | TR-Dizin | PubMed | SOBİAD
Scopus İndeksli Yayınlar Koleksiyonu
Dergi Adı Proceedings - Rapid Excavation and Tunneling Conference
Dergi Cilt Bilgisi 2019-June
Sayfalar 980 - 985
Yayın Yılı 2019
Eser Adı
[dc.title]
Proposal of some cuttability indexes for evaluating the performance of mechanical excavators using conical picks
Yayıncı
[dc.publisher]
Society for Mining, Metallurgy and Exploration
Yayın Türü
[dc.type]
conferenceObject
Açıklama
[dc.description]
2019 Rapid Excavation and Tunneling Conference, RETC 2019 -- 16 June 2019 through 19 June 2019 -- -- 149573
Özet
[dc.description.abstract]
In this study, rock cuttability indexes are evaluated based on peak cutting force, specific energy and rock strength. For this purpose, a number of samples were collected from different parts of China and the mechanical properties of the samples were initially determined. Then, a series of cutting tests in unrelieved cutting mode were conducted at the linear rock cutting rig. The tests were performed at the cutting depths ranging from 3 mm to 18 mm. As a result of the tests, the effect of a significant cuttability index, which is the ratio of cutting force to cutting depth (FC/d), on the uniaxial compressive strength was investigated. Based on the acquired data from linear cutting test rig, the correlations between the ratio of FC/?c and cutting depth and also between the ratio of (SE/?C) and cutting depth were examined and their validity to be as new cuttability indexes were checked. High correlation coefficients among the cutting variables verified that the new cuttability index values can be successfully used for designing the cutterheads or the drums of mechanical excavators as well as evaluating their cutting efficiency. © 2019 Society for Mining, Metallurgy and Exploration. All rights reserved.
Kayıt Giriş Tarihi
[dc.date.accessioned]
2019-12-23
Açık Erişim Tarihi
[dc.date.available]
2019-12-23
Yayın Yılı
[dc.date.issued]
2019
Tek Biçim Adres
[dc.identifier.uri]
https://hdl.handle.net/20.500.12628/7222
Yayın Dili
[dc.language.iso]
eng
Yazar
[dc.contributor.author]
Su O.
Yazar
[dc.contributor.author]
Wang X.
Haklar
[dc.rights]
info:eu-repo/semantics/closedAccess
Yazar Departmanı
[dc.contributor.department]
Zonguldak Bülent Ecevit Üniversitesi
İlk Sayfa Sayısı
[dc.identifier.startpage]
980
Son Sayfa Sayısı
[dc.identifier.endpage]
985
Dergi Adı
[dc.relation.journal]
Proceedings - Rapid Excavation and Tunneling Conference
Dergi Cilt Bilgisi
[dc.identifier.volume]
2019-June
ISBN
[dc.identifier.isbn]
9780873354707
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6
09.12.2022 tarihinden bu yana
İndirme
1
09.12.2022 tarihinden bu yana
Son Erişim Tarihi
09 Şubat 2024 12:38
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cutting cuttability mechanical linear samples indexes between strength variables coefficients correlation (SE/?C) checked examined validity designing verified efficiency reserved rights Exploration Metallurgy Mining Society evaluating excavators cutterheads successfully values correlations significant number determined initially properties
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