The Three-Dimensional Marking Robot for Tunnel Driving

Abstract

The Three-Dimensional Marking Robot for Tunnel Driving Koichi Nakano, Makoto Sasaki, Aketo Suzuki, Tadashi Kanzaki Pages 635-644 (1992 Proceedings of the 9th ISARC, Tokyo, Japan, ISSN 2413-5844) Abstract: This robot has been designed to support marking of the designed section and surveying operations, which take place daily at the tunneling cut face. When using NATM, a peripheral line marking the designed section of the tunnel is drawn after appropriate survey work in order to allow accurate excavation. This new robot constitutes a unique technology in which the tunnel section and drilling pattern are plotted using a residual image projected accurately and continuously by a laser beam under computer control.Using this method, the accuracy of excavations is improved, rock overbreak and labor are reduced, and the conventional, uneconomical characteristics of tunneling work are overcome. This robot has been used in a number of tunnelling tasks, including some for “Shinkansen” bullet trains. Keywords: No keywords DOI: https://doi.org/10.22260/ISARC1992/0075 Download fulltext Download BibTex Download Endnote (RIS) TeX Import to Mendeley