OPEN SHIELD MACHINE

• Main Authors: UEMURA KENJIRO, UEMURA MAKOTO, TAKEGAWA HIROAKI
• Format: Patent
• Language: English
• Published: 17.05.2012
• Subjects: EARTH DRILLING; FIXED CONSTRUCTIONS; GALLERIES; LARGE UNDERGROUND CHAMBERS; MINING; SHAFTS; TUNNELS

PROBLEM TO BE SOLVED: To provide an open shield machine capable of surely preventing the infiltration of underground water or sediment, etc., just by adding a simple configuration to the shield machine when dividing a machine body into multiple in the anteroposterior direction, fitting the front end of a rear machine body to the rear end of a front machine body, fitting them with a gap, that is loosely fitting them, and allowing bending at the fitting parts of each other.SOLUTION: In an open shield machine 1, the machine body comprising left and right side wall plates 1a, 1b and a bottom plate 1c are divided into a front part 2 and a tail part 3 in the anteroposterior direction, the front end of the tail part 3 is fitted to the rear end of the front part 2 and bending is made possible at the fitting part of each other. A wire brush 18 is disposed at a middle bend part 16 where the front part 2 and the tail part 3 are joined, and a girder material is disposed as a floating prevention member between the front part and the tail part without restraining the movement in the anteroposterior direction of one of the front part and the tail part.