Secondary lining supplementary grouting indoor simulation test device

The invention relates to the tunnel lining grouting construction test field, and especially relates to the secondary lining supplementary grouting indoor simulation test device field. The device comprises a transparent chamber, a grouting channel, an exhaust passage, a screen component, wherein the grouting channel is connected with a water outlet of the transparent chamber; the exhaust passage isconnected with the transparent chamber; the screen component is provided with an inlet, an outlet and a screen, and the inlet of the screen component is connected with the chamber; a piston used formoving in a gravity direction is arranged in the transparent chamber; a cavity above the piston is used for simulating the cavity of a tunnel secondary lining; a grout discharging port of the groutingchannel is located in the cavity; an air inlet of the exhaust channel is located in the cavity; and the screen component is connected with the cavity. The device is used for visually reflecting a tunnel secondary lining supple