Water-rich sand layer precipitation sand control model test box and test method thereof

The invention discloses a water-rich sand layer precipitation sand control model test box and a test method thereof, and belongs to the technical field of soil seepage research, the model test box comprises a test box body, the test box body is of a 45-degree fan-shaped structure with an opening in the top, a first partition plate is fixedly arranged in the test box body close to the circle center, and a second partition plate is fixedly arranged in the test box body close to the arc; water seepage holes are formed in the first partition plate and the second partition plate; the first partition plate and the second partition plate divide the test box body into a simulation well, a sand tank and a constant water head tank, the bottom of the simulation well is communicated with a water pumping pipe, and the constant water head tank is internally communicated with a water inlet pipe and an overflow pipe. The model test box simulates sandstone stability and filter screen blockage conditions under the conditions o