Simulation test device for immersion and humidification deformation of loess fill foundation

A simulation test device for soaking and humidifying deformation of a loess filling foundation comprises a glass box, loess is contained in the glass box, a rainfall simulation assembly is installed on the top of the glass box, and a water flow simulation assembly is installed on the side wall of the glass box; water outlet pipes symmetrically penetrate through the bottom of the side wall of the glass box; the rainfall simulation assembly comprises a plurality of supporting rods fixedly connected to the top of the outer wall of the glass box, the top ends of the supporting rods are fixedly connected with a supporting plate, a water tank is installed on the top face of the supporting plate, a sewer pipe penetrates through the bottom face of the water tank, penetrates through the supporting plate and is communicated with a water distribution pipe, the water distribution pipe is horizontally arranged, and a plurality of water spraying heads are installed at the bottom of the water distribution pipe at equal inte