Pumping and grouting integrated constraint grouting reinforcement structure and construction method thereof

The invention provides a pumping and injecting integrated restrained grouting reinforcing structure and a construction method thereof.The reinforcing structure comprises a reinforcing body composed of a downcast pipe and a grouting pipe which are fixedly connected, and the reinforcing body is sequentially and alternately provided with grouting bag sections and downcast sections in the axial direction; an isolation end plate fixedly connected with the reinforcing main body is arranged between the grouting bag section and the dewatering section which are adjacent to each other; a grouting bag is installed on the grouting bag section, a grouting hole connected with an inner cavity of the grouting bag is formed in the side wall, located on the grouting bag section, of the grouting pipe, a precipitation filtering mechanism is installed on the precipitation section, and a precipitation hole connected with the precipitation filtering mechanism is formed in the side wall, located on the precipitation section, of the