Tunnel concrete lining formwork apparatus

The utility model discloses a tunnel concrete lining template device comprising a template system and a needle beam system for loading. The template system includes a template component and a template hanger. The template component consists of a left side from, a right side template, a top template and a bottom template which are arched and are correspondingly connected to template a template component with a round section. The template hanger is hung on the top template. The bottom of the template hanger is provided with telescopic devices which are used for template erection and template removal and connected respectively with the left side template, the right side template and the bottom template. The needle beam system comprises a loading needle beam placed on the top of tunnel and a front and back supporting leg device which is used for supporting the loading needle beam and also can be adjusted in height. The upper section of the loading needle beam and the top template are in sliding contact, and the needle beam is put on the template hanger. The bottom template with detachable structure is provided with an open part for coating on the surface of tunnel inverted arch concrete with mortar after dismantlement and turning during initial set of concrete. The template device is effective to eliminate the bubble problem of traditional full-face template inverted arch and improve the internal and external molding quality of the concrete on the inverted arch.