The mechanism and performance of rock breakage by undercutting disc cutter with advanced slotting [PDF]
Scientific Reports, 2023 To study the mechanism and performance of rock breakage by an undercutting disc cutter with advanced slotting, a three-dimensional numerical model of rock cutting by a disc cutter with advanced slotting assistance was established based on the discrete ...
Hongxiang Jiang +4 more
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Measurement of TBM Disc Cutter Wear Using Eddy-Current Sensor in Different TBM Chamber Conditions: Insights from Laboratory Tests [PDF]
SensorsThe TBM disc cutter, which is the main cutting tool of tunnel boring machines (TBMs), is replaced when it is excessively worn during the boring process.
Minsung Park +3 more
doaj +2 more sources
Optimum Design and Application Research of Eddy Current Sensor for Measurement of TBM Disc Cutter Wear [PDF]
Sensors, 2019 In view of the fact that the mature eddy current sensors on the market have a small measuring range and a certain requirement for the measured conductor area, which cannot meet the requirement of TBM disc cutter Wear monitoring, Ansoft Maxwell simulation
Fei Wang +3 more
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Pose Determination of the Disc Cutter Holder of Shield Machine Based on Monocular Vision [PDF]
Sensors, 2022 The visual measurement system plays a vital role in the disc cutter changing robot of the shield machine, and its accuracy directly determines the success rate of the disc cutter grasping.
Dandan Peng +6 more
doaj +2 more sources
Study on Cutting Chip in Milling GH4169 with Indexable Disc Cutter. [PDF]
Materials (Basel), 2021 The study and control for chip have a significant impact on machining quality and productivity. In this paper, GH4169 was cut with an indexable disc milling cutter. The chips corresponding to each group of cutting parameters were collected, and the chip parameters (chip curl radius, chip thickness deformation coefficient, and chip width deformation ...
Li G, Xian C, Xin H.
europepmc +4 more sources
Discrete/finite element modelling of rock cutting with a TBM disc cutter [PDF]
Rock Mechanics and Rock Engineering, 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 high-precision segmentation method based on UNet for disc cutter holder of shield machine [PDF]
Scientific ReportsVisual positioning plays a pivotal role in enabling robotic disc cutter replacement for the shield machine. However, underground operational challenges—including low illumination, high dust concentrations, and irregular sand deposition on the surface of ...
Dandan Peng, Guoli Zhu, Zhe Xie
doaj +2 more sources
Comparison of the specific energies of sinusoidal VCS cutter rings and CCS cutter rings in breaking rock-like materials based on the FEM [PDF]
Scientific ReportsDisc cutters are essential for full-section hard-rock tunnel boring machines. The performance of these devices directly affects tunnel engineering costs and duration.
Jia Li Zhao +6 more
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Advances in Civil Engineering, 2022 Rock-breaking efficiency of full-face rock tunnel boring machine (TBM) is closely related to the performance of the disc cutter and the characteristics of the rock mass.
Qinglong Zhang +5 more
doaj +1 more source
Development and Performance Evaluation of an Integrated Disc Cutter System for TBMs
Applied Sciences, 2021 Changing the cutter is an essential procedure in tunnel boring machine (TBM) operations. The danger and low efficiency of manually replacing the disc cutter has led engineering equipment designers to study technologies to automate the changing of cutters.
Zhichao Meng +4 more
doaj +1 more source