TUNNEL LINING STRUCTURE AND TUNNEL LINING CONSTRUCTION METHOD

摘要

To provide a tunnel lining structure and a tunnel lining construction method, each of which make it possible to construct a tunnel lining efficiently and economically by using PCa members.SOLUTION: A tunnel lining structure according to this invention is constructed with: coupling adjacent segments 1 each other in the circumferential direction of a tunnel by an inter-piece joint 3 consisting of a male joint and a female joint; coupling the adjacent segments 1 each other in the tunnel axial direction with the inter-ring joint 4; arranging a plurality of segments 1 which is an arc-shaped PCa member in succession along the excavated inner surface of the earth's mountain; and constructing a tunnel lining of a mountain tunnel which covers the inner surface of the excavation.SELECTED DRAWING: Figure 4