Slip zone similar material of landslide physical model, and preparation method thereof

The invention discloses a slip zone similar material of landslide physical model, and a preparation method thereof. The slip zone similar is prepared from a raw material of glass beads in different sizes, or, raw material of glass beads and river sand, a proper ratio is determined according to actual to-be-simulated landslide-slip zone prototype, a satisfactory slip zone similar material can be simulated, and the slip zone similar material satisfies that cohesive force and internal friction angle are similar as that of real slip zone. For the slip zone similar material provided by the invention, cohesive force can be conveniently regulated to be 0 by regulating volume of addition of the glass beads in different sizes and the sand river, and the internal friction angle can vary in a larger range, so that experiment needs of different landslide physical models can be satisfied. Moreover, the similar material has the advantages of abundant raw material source, simple preparation method, steady mechanical property, low cost, harmlessness to human body, and so on.