Experiment Study on High-efficiency Rock-breaking Mechanism of TBM with A Varying Number of Disc Cutters

DOI

10.2991/ame-17.2017.43How to use a DOI?

Keywords

TBM rock-breaking, High-efficiency, Optimal cutter spacing, Surrounding rock.

Abstract

It is of significance for Tunnel Boring Machine (TBM) to conduct rock-breaking efficiently and rapidly throughout tunnel construction. The efficient rock-breaking mechanism of TBM has always been a hot yet tough issue in geotechnical engineering. In this paper, by using a self-developed large experiment platform, rock-breaking experiments are conducted with a varying number of disc cutters from one to three. The failure processes of red sandstone, limestone, and granite, are illustrated. The optimal cutter spacing of them is generalized. For further, a formula of wide applicability on optimal cutter spacing is proposed in case the rock's uniaxial strength ranges from 40~170MPa.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Xing Li
AU  - Kui Chen
AU  - Jin-Wei Fu
AU  - Bing Zhang
PY  - 2017/04
DA  - 2017/04
TI  - Experiment Study on High-efficiency Rock-breaking Mechanism of TBM with A Varying Number of Disc Cutters
BT  - Proceedings of the 3rd Annual International Conference on Advanced Material Engineering (AME 2017)
PB  - Atlantis Press
SP  - 251
EP  - 255
SN  - 2352-5401
UR  - https://doi.org/10.2991/ame-17.2017.43
DO  - 10.2991/ame-17.2017.43
ID  - Li2017/04
ER  -