Landslide model test devices and methods for realizing multi-variable synchronous monitoring

A landslide model test device for realizing multi-variable synchronous monitoring, comprising:

• a soil slope simulation unit, configured to pile up a soil slope and simulate different inclinations of the slope, the soil slope simulation unit including a model slot;
• a rainfall simulation unit, cooperated with the soil slope simulation unit and configured to simulate rainfall of different intensities and induce a landslide;
• a runoff-seepage separation unit, disposed at an end of the soil slope simulation unit and configured to implement separation of runoff from seepage of the slope under the effect of rainfall;
• the runoff-seepage separation unit including a porous plate disposed at an end of the model slot, wherein a runoff water chute is disposed at a position behind the porous plate corresponding a slope surface of the soil slope, and a seepage water chute is disposed at a position behind the porous plate corresponding a bedrock surface of the soil slope;
• and
• a monitoring module, cooperated with the runoff-seepage separation unit and configured to monitor runoff and seepage flow rates of the slope, changes in water content and pore water pressure within the slope, and a morphological change of the slope under the effect of rainfall;
• wherein the monitoring module includes a flow rate monitoring unit, disposed at an end of the runoff-seepage separation unit and configured to monitor the runoff and seepage flow rates of the slope under the effect of rainfall;
• wherein the flow rate monitoring unit includes two sedimentation tanks connected with the runoff water chute and the seepage water chute, respectively, each of the two sedimentation tanks is connected with a water collection tank through a second guide pipe;
• the second guide pipe is disposed at an upper edge of the corresponding sedimentation tank;
• a horizontal height of the water collection tank is lower than a horizontal height of the corresponding sedimentation tank;
• and a weighing device is provided under each of the two sedimentation tanks and the water collection tank.