Development of a remote-control transportation system for use in underground spaces
207 Subway underground excavation work with cut-and cover method, particulaly the transportation of constraction material, equipment, and muck, is greatly affected by construction conditions aboveground. The appropriateness of the method used for this work is a major factor in the progressing of construction. Traffic in urban areas has become increasingly heavy, which makes it difficult to set up asystem for the direct transportation of things between the road surface and work sitesunderground. As a result, things are usually transported vertically along shafts at fixedacces points and then horizontally along levels to the work sites.