Water and sand leakage evolution experiment equipment capable of controlling leak width and double-seam spacing

The utility model relates to the technical field of geotechnical engineering, in particular to water leakage and sand leakage evolution experiment equipment capable of controlling the width of a leakage seam and the distance between two seams, which comprises a water tank, a rainfall device, a filter screen, a water leakage and sand leakage generating device, a blocking device, a profile steel bracket, a measuring device, a shooting device and a collecting device, leaking seams are formed in the two sides of a bottom plate of the water and sand leakage generating device, and the water and sand leakage generating device is filled with sandy soil; a blocking device used for blocking the leak is arranged below the profile steel support, and a collecting device is arranged below the leak. The filter screen is arranged at an opening in the top of the water and sand leakage generating device, and the water tank and the dewatering device are arranged above the filter screen; the measuring device is arranged on one s