Results 21 to 30 of about 260,516 (241)
Research on wear prediction of disc cutter based on friction work principle [PDF]
, 2020 As the main rock breaking tool of tunnel boring machine, the wear of disc cutter is affected by geological conditions, equipment factors and tunnelling parameters when it interacts with rock. Because of the complex factors affecting the disc cutter wear,
Huang, Yuanjun +4 more
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Rock-Breaking Laws of Disc Cutters with Different Height Differences in Hard Rock Strata
Advances in Civil Engineering, 2022 When shield machine traverses through hard rock mass, disc cutters will be abraded to different degrees. Excessive height difference exists between adjacent disc cutters, which critically affects the rock-breaking efficiency.
Zelin Lu +5 more
doaj +1 more source
Applied Sciences, 2023 Our study aimed to identify a design which would reduce cutting resistance during the harvesting of castor. This paper presents a theoretical study of the wave-type disc cutter, which plays an important role in castor harvesting.
Fanting Kong +7 more
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工程科学与技术, 2022 To solve the problems of low penetration, serious wear and low rock-breaking efficiency during traditional disc cutter rock breaking under the geological conditions of hard rock, many new auxiliary rock breaking methods have been proposed, such as ...
Lu GUO +4 more
doaj
Impact of Cleaning Efficiency on Disc Cutter Drilling Performance
, 2023 Large diameter drilling operations, including tunnel boring and raise boring, are capital-intensive projects. As such, proper estimation of time and cost is critical to the planning of the drilling project.
Abugharara, Abdelsalam N. A. +3 more
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MATEC Web of Conferences, 2018 A single-POF model of disc cutter with rock and soil has been established according to the dynamical feature and vibration mechanism of disc cutter vibro-cutting rock to solve problem of self-adaption vibro-cutting rock for disc cutter, and ...
Chen Qiang, Lang Jianke
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Using a high-pressure water jet-assisted tunnel boring machine to break rock
Advances in Mechanical Engineering, 2020 The concept of tunnel boring machine (TBM) disc cutter rock breaking coupled with high-pressure water jets has been proposed to overcome the difficulties that occur when TBMs encounter extremely hard rocks.
Jinliang Zhang +5 more
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Investigation on thermal behavior of TBM disc cutter under different cooling conditions
Case Studies in Thermal Engineering, 2023 The excessive working temperature of the TBM disc cutter is one of the problems that cannot be ignored in tunnel construction. The high temperature will accelerate the disc cutter ring wear, shorten its service life and increase construction costs ...
Jie Fu +6 more
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Correlation between machining direction, cutter geometry and step-over distance in 3-axis milling: Application to milling by zones. [PDF]
, 2012 Computer-Aided Manufacturing (CAM) occupies an increasingly important role in engineering with all it has to offer in terms of new possibilities and improving designer/manufacturer productivity. The present study addresses machining of free-form surfaces
Senatore, Johanna +3 more
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Engineering and Economic Evaluation of a Prototype Fabricated for Harvesting Sugarcane
Designs, 2022 A sugarcane harvester prototype was fabricated and evaluated to save time, labor, and harvesting expenses, which are included in production costs. The single-row harvester prototype fits the functional needs of the physical qualities of sugarcane and was
Ahmed Mohamed El Shal +2 more
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