| 摘要 |
<p>PROBLEM TO BE SOLVED: To carry out a diameter-expanding lining method by a tube making machine even in a secondary lining process for a tunnel by allowing a rotational advance of the tube making machine on a segment inner circumferential face and braking on the rotational advance. SOLUTION: This pipeline manufacturing method includes a primary lining process comprising the steps for forming a cylindrical body SS by sticking arcuate segments S on the inner circumferential face of a tunnel T, and projecting a rail R, R extended in the tunnel longitudinal direction to transverse ribs Sb at the lower part of the inner circumferential face of the cylindrical body, and attaching spacer members Q1 and Q2 to the respective ribs in a peripheral direction of the respective rails for filling their height difference so that the respective rails conform to the tip of the respective ribs, and a secondary lining process, wherein front and rear guide frames Ga and Gb are engaged together freely movably in the tunnel longitudinal direction while restricted from rotation to the respective rails, the tube making machine is installed to the respective guide frames to be rotationally advanced or braked, and the pipe making machine is braked so that a spiral tubular body PP is expanded in diameter by feeding force of a profile P to be brought close to the inner circumferential face of the cylindrical body.</p> |
