Results 11 to 20 of about 10,655 (303)
Frontiers in Earth Science, 2023 As the main cutting tool of Tunnel Boring Machine (TBM) for rock-breaking, the rock-breaking efficiency of TBM disc cutters directly affects the TBM’s boring speed, which in turn affects the overall progress of the tunnelling project. Therefore, a simple
Guanghong Zhou +6 more
doaj +1 more source
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, 2022 At present, the replacement of disc cutters of the tunnel boring machine (TBM) is a very important and difficult manual operation. It is meaningful to study disc cutters of TBM replacement with a robot. In this paper, the machining and assembly deviation
Hao Chen +4 more
doaj +1 more source
Applied Sciences, 2022 During tunneling processes, disc cutters of a tunnel boring machine (TBM) usually need to be frequently and unexpectedly replaced. Regular inspections are needed to check disc cutters’ status, which significantly reduces the work efficiency and increases
Yang Liu +4 more
doaj +1 more source
The comparative analysis of rocks’ resistance to forward-slanting disc cutters and traditionally installed disc cutters [PDF]
Acta Mechanica Sinica, 2015 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Zhang, Zhao-Huang, Fei, Sun, Liang, Meng
openaire +1 more source
Applied Sciences, 2021 This study used a discrete-element analysis to predict the excavation performance of a 7.73 m-diameter earth pressure balance (EPB) shield tunnel boring machine (TBM).
Byungkwan Park +4 more
doaj +1 more source
Influence of the Rigid Connection Between Discs in the Tetrahedral Prisms on Equivalent Stresses When Cutting Work Faces [PDF]
, 2016 This paper presents the results of modeling of the stressed state of structural elements of the paired fastening points of the two disc tools to the tetrahedral prisms of the working bodies of the roadheaders of selective action when cutting work faces ...
Borisov, A. Yu. +3 more
core +2 more sources
Effect of Rock Abrasiveness on Wear of Shield Tunnelling in Bukit Timah Granite
Applied Sciences, 2020 The abrasiveness of rocks significantly influences the wear endured by excavation tools in tunnel boring machines (TBMs). In slurry shield TBMs, wear occurs not only in excavation tools but also in discharge pipes and pumps of slurry transport systems ...
Tae Young Ko, Sean Seungwon Lee
doaj +1 more source
Effect of the Geometric Configuration of the Disc Cutter on the Cutting Behaviour in Tunneling
Applied Sciences, 2022 The disc cutter is a key tool in shield machines that come into direct contact with rock while participating in the removal of rock. Therefore, the reasonable design of the geometric configuration of disc cutters greatly determines the tunnelling ...
Yixin Duan +5 more
doaj +1 more source
Study on disc cutter chipping of TBM based on field data and particle flow code simulation
Underground Space, 2023 Using tunnel boring machines to excavate high-strength intact rock masses is becoming more common. Due to the interactions between disc cutters and rocks, abnormal wear of disc cutters, especially cutter chipping, has become a common phenomenon. Existing
Yadong Xue +4 more
doaj +1 more source