Underground tunnel structure

摘要

The invention relates to an underground tunnel structure, which can be used in particular as a traffic tunnel, with any tunnel cross-section which is produced by means of a shield tunnelling machine and which during the progress of the work is lined with curved and/or bent steel-plate sectional panels and concrete. In order to simplify and reduce the cost of a tunnel structure of this type, the steel-plate sectional panels are formed in the construction state as self-supporting and/or underpinned concrete inner formwork and in the final state as a watertight inner shell with joints closed watertight between the individual panels. So that the pressing forces from the shield driving can be transmitted directly to the fresh concrete, the fresh concrete can be dewatered via if need be additionally arranged filter elements in order to thereby obtain prompt hardening of the concrete.