Tunnel fixed loop is to two lining end -blocking steel form systems of waterstop

The utility model discloses a tunnel fixed loop is to two lining end -blocking steel form systems of waterstop, including the fixed steel form, activity steel form, the fixed back seat of I -steel that are L type structure, fixed steel form, activity steel form pass through hinge hinge, are fixed with hoop steel limit waterstop between fixed steel form and the activity steel form, pass through bolted connection between fixed steel form and the two lining platform trucks, the activity steel form exposes an adoption wooden model and supplyes the end -blocking with just serving as a contrast between the concrete, activity steel form, the wooden model outside ask the reinforcement to support on the back seat is fixed to the I -steel through the lead screw top, weld between fixed back seat of I -steel and the two lining platform trucks. When pouring two lining concrete, be under construction between hoop steel limit waterstop clamp and fixed steel form and the movable steel form, ensured that the accurate and linear circle in position of hoop steel limit waterstop is suitable, fold and damaged phenomenon appear in having avoided being under construction, improved two lining concrete construction seam water -proof effects, the construction is fairly convenient moreover, save time.