Abstract: A method for lining a tunnel wall formed by a shield excavation includes filling a space between the tunnel wall surface and the outer peripheral surface of a lining form in two stages by dividing space into two, portions. One stage of the method is carried out with a ring-shaped rearward end frame ring secured to excavator propelling jacks and disposed to define a first space portion and a second stage of the method is carried out accompanying forward propulsion of the excavator.

Abstract: The known method for constructing a tunnel of the type in which a shield tunnelling machine is shoved by means of a concrete lining jack and a shield jack equipped on the shield tunnelling machine with reaction forces received by concrete for lining placed in a space delimited by an inner form assembled within a tunnel bore successively dug by the shield tunnelling machine, a shield tail and an already placed concrete lining, as well as by the inner form, is improved in order to construct a main tunnel body as a reinforced concrete structure. The improvements include in that a reinforcing steel cage is mounted to a combined spreader and end form of the concrete lining jack via metal mounts, the placed concrete for lining is compressed while the reinforcing steel cage is moved, and thereby the reinforcing steel cage is disposed at a predetermined position within the concrete for lining by adjusting the stroke of the concrete lining jack.

Abstract: A tunnel wall lining method is provided, wherein annular recesses circumferentially are provided in outer periphery of a lining form into which arcuate segments are assembled, a plurality of rows of reinforcing bars are arranged annularly in the respective recesses of the lining form, and a lining is constructed with concrete cast into a space between the tunnel wall and the lining form. The lining thus constructed includes circumferentially extending and radially inwardly projecting beams in which the reinforcing bars are embedded, whereby a lining having a reinforcing structure can be constructed in a simple and economical manner and in a shortened construction period.