Rock Hardness Identification Based on Cutting Motor Current of Roadheader
Meikuang Anquan, 2020 It is difficult to monitor the cutting load directly during the driving process of roadheader for rock tunnel, which leads to the problem that the cutting speed and swing speed cannot be adjusted in time to adapt to the rock hardness change.
HE Ying, TIAN Muqin, SONG Jiancheng, FENG Junling, DONG Zonghui
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Research on cutting performance and fatigue life of conical pick in cutting rock process
Science Progress, 2021 The conical pick is the most crucial tool of roadheader for breaking rock, establishing the conical pick cutting rock and conical pick fatigue life numerical simulation models to investigate the influence of cutting parameters on rock damage, average ...
Qingliang Zeng +5 more
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Discrete/finite element modelling of rock cutting with a TBM disc cutter [PDF]
, 2017 The final publication is available at Springer via http://dx.doi.org/10.1007/s00603-016-1133-7This paper presents advanced computer simulation of rock cutting process typical for excavation works in civil engineering.
Labra, C. +2 more
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A theoretical model for predicting the Peak Cutting Force of conical picks [PDF]
, 2013 In order to predict the PCF (Peak Cutting Force) of conical pick in rock cutting process, a theoretical model is established based on elastic fracture mechanics theory. The vertical fracture model of rock cutting fragment is also established based on the
Du Changlong +3 more
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Research on Cutting Characteristics of Rock Plate with Two Sides Fixed and Two Sides Free
Advances in Materials Science and Engineering, 2020 Conical pick wear is an urgent problem in the roadway excavation caused by hard rock difficult to break. The traditional method of increasing cutting power to improve cutting performance of conical pick significantly increases pick wear.
Zhenguo Lu +4 more
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Analitic Investigation of the Regularities of Changing Dust Concentration During the Abrasive Decrease of Stone Structures [PDF]
, 2018 In the process of repair or restoration of building structures, it is often necessary to strengthen building structures from limestone-shell rock, concrete, reinforced concrete, hard materials-granite, basalt, etc.
Bezpalova, A. (Alla) +2 more
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Drag pick cutting tests: A comparison between experimental and theoretical results
Journal of Rock Mechanics and Geotechnical Engineering, 2018 This paper aims at reporting the results of a number of drag pick cutting tests on selected igneous rock samples to compare the experimentally determined maximum cutting force (FC′) values with theoretically estimated ones. First, a review on theoretical
Serdar Yasar, Ali Osman Yilmaz
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Investigation of fragment separation during a circular saw blade cutting rock based on ANSYS/LS-DYNA
Scientific Reports, 2022 Circular saw blades are widely used in stone processing. The circular saw blade cutting hard rock numerical simulation model based on ANSYS/LS-DYNA was established to investigate the complex dynamic problem in rock cutting.
Zhiwen Wang +4 more
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Shock and Vibration, 2021 The diamond sawblade has been widely used in the field of rock mining and processing. This article, through the establishment of a numerical simulation model of diamond sawblade cutting rock, studies the influence of the distance between the diamond ...
Qingliang Zeng +4 more
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Prospects for Further Rock Cutting Mechanisms Development [PDF]
, 2015 In this research power rock cutting mechanisms are considered. Impact and vibratory impact mechanisms are presented, their design characteristics are given.
Novoseltseva, Maria Viktorovna +1 more
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