ABSTRACT
The authors have tried to find solutions to the foregoing problems in the course of the development of the work carriage.
3 CHARACTERISTICS OF THE WORK CARRIAGE
3.1 Main components
Fig. 2 outlines the construction of the work carriage and its main components. The carriage consists mainly of the following components:
1. Carriage body frame that can move over one of the two lanes in the tunnel. (Refer to (1) in Fig. 2).
