シールドトンネル (1)

[VI-156] Construction performance of sharp curve / steep muddy type propulsion construction under tuff layer

小野 雅毅²、千葉 直樹²、大木葉 利幸¹、*飯尾 友彦¹ (1. 前田建設工業、2. 東北電力)

Keywords:sharp curve, steep slope, mud-type propulsion method , tuff layer, bit wear

This report presents equipment for stable supply by linking the Sankyosawa Power Station(substation adjoined)in Sendai City,operated and managed by Tohoku Electric Power Co.,Ltd.,and the Nakasendai substation,which is a peripheral electric station.
Of the projects to be formed,the mud-type propulsion method is used to overcome from the unusually linear Sankyosawa Power Station with a sharp curve of 25R and a steep slope of 11.6% to the Hachiman Joint Groove managed by Sendai City.