Indoor experimental device and experimental method for micro-disturbance grouting technology of operating metro

The invention relates to simulation detection equipment of tunnel and shield equipment, in particular to an indoor experimental device and experimental method for a micro-disturbance grouting technology of an operating subway. The objective of the invention is to solve the problem of lack of simulation equipment in a laboratory about the micro-disturbance condition in the operation process in the prior art. The device comprises a soil box for containing reduced-scale segments, a press-mounted cover body is arranged on the upper surface of the soil box, the cover body is installed on a gantry-shaped reaction frame, a hydraulic telescopic rod is arranged between the cover body and the reaction frame, the reduced-scale segments form reduced-scale tunnels, and grouting holes are reserved in the bottom of each section of reduced-scale tunnel to be connected with a grouting loop. The grouting loop is sleeved with a non-contact measuring mechanism and further comprises a bypass branch connected with a bypass groutin