Template back cage applied to large-size pier template

The invention discloses a template back cage applied to a large-size pier template, the pier template is composed of a plurality of template segments, every two adjacent back cage segments are detachably connected in a clamping manner, the template back cage comprises a back cage main body and an overturning platform, and the back cage main body is arranged outside the pier template to be constructed; the back cage body is of a hollow structure, the number of the overturning platforms is multiple, the overturning platforms are distributed in the hollow structure in the back cage body in the height direction of the back cage body, each overturning platform is connected to the back cage body in an overturning mode, and the overturning platforms can be overturned to be in the horizontal state. The formwork back cage is provided with the overturning platform, construction of operators is facilitated, the working efficiency is improved, and the construction safety is greatly improved. 本发明公开了一种应用于大尺寸墩模板的模板背笼，墩模板由若干