WORK TRUCK, AND TUNNEL EXCAVATOR EQUIPPED WITH THE WORK TRUCK

摘要

PROBLEM TO BE SOLVED: To provide a work truck which facilitates assembly of timbering and spray of concrete in construction of a large sectional tunnel. SOLUTION: The work truck C is comprised of a base stand 4 movable in the tunnel, guide rails G1, G2, G3, G4borne by the base stand 4, timbering assembling means 5L, 5R movably borne by the left and right guide rails G1, G3, respectively, and concrete spraying means 6L, 6R movably borne by the left and right guide rails G2, G4, respectively. The guide rails G1, G2, G3, G4are arranged along tunnel inner surfaces 1L, 1R, and therefore even if the tunnel has a large cross section, assembly of the timbering 2 and spray of the concrete are achieved along the entire inner surface of the tunnel. COPYRIGHT: (C)2005,JPO&NCIPI