Publications / 1989 Proceedings of the 6th ISARC, San Francisco, USA

Development of Small-Bore, Long-Distance, Curved-Conduit Tunneling Robot

Tadashi Sugi, Yutaka Ichinohe, Hideto Abe, Hidekazu Tanaka
Pages 56-63 (1989 Proceedings of the 6th ISARC, San Francisco, USA, ISSN 2413-5844)
Abstract:

This paper describes the application of pipe-tunneling robots for constructing small-bore (1-2m) tunnel conduits for underground power cables. The system makes possible long-distance, curved-conduit tunneling. The development consists of the following basic technology; (1) an automatic position–measuring system via gyro car; (2) a self-propelled, semi-shielded machine for long-distance, curved-conduit tunneling; (3) high-strength Hume pipe with resin-reinforced terminals; (4) remote control operating system. The method has been under development since 1983. Its practically was proved in actual site tests in 1987 with routes of 100m and curvature radii of 80m.

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