Experimental device and method for simulating underwater anchor hole grouting filling

The invention provides an experimental device and method for simulating underwater anchor hole grouting filling. An anchor hole simulation device is arranged in a water tank used for simulating a water environment; a grouting anchor rod for grouting and anchoring is arranged in the anchor hole simulation device; the open end of the anchor hole simulation device is plugged through a rubber plug. The rubber plug is communicated with grouting equipment through a grouting pipe; magnetic mortar is arranged in the grouting equipment; a high-definition camera is arranged right in front of the anchor hole simulation device and records the diffusion condition of slurry and the drainage process of water in the anchor hole in the experiment process, and follow-up experiment analysis is facilitated. By means of the device, the diffusion and filling condition of the slurry in the anchor hole under the action of magnetic attraction force can be visually observed; the rule that water in the anchor hole is extruded and disch