Abstract: A model test device for simulating environmental load and scouring effect on a suction caisson includes a laminar shear box. Multiple scouring pit simulation mechanisms are arranged around the suction caisson inside the laminar shear box, each scouring pit simulation mechanism includes a bracket disposed in the laminar shear box, the bracket is equipped with a telescopic arm connected to a cutting plate, and the cutting plate is curved fan-shaped. When the cutting plates move to positions where they are in contact with an outer wall of the suction caisson, the cutting plates are mutually connected to form a ring surrounding the suction caisson. An inner edge of the ring forms a complete circle attached to the outer wall of the suction caisson, an outer edge of the ring is higher than its inner edge, and the outer edge is located above the saturated soft clay in the water body.

Abstract: An indoor intelligent pile-supported embankment grouting simulation device includes a control system in signal connection with a slurry preparation system and a grouting system, and realizing efficient connection and intelligent management of each equipment in the slurry preparation and grouting systems. A cement silo of the slurry preparation system is loaded with a powdered cementitious material, which is stirred with water and pumped into the grouting system. A pile body, a soft soil foundation, embankment filled soil, and a monitoring element of the grouting system are located in the model tank. Multiple pile bodies are uniformly arranged in the model tank, the embankment filled soil is arranged on the top of the pile body, a soft soil foundation is filled between adjacent pile bodies, the bottom of the grouting pipeline is arranged in the soft soil foundation, and the monitoring element is arranged in the embankment filled soil.

Abstract: A model test device for simulating environmental load and scouring effect on a suction caisson includes a laminar shear box. Multiple scouring pit simulation mechanisms are arranged around the suction caisson inside the laminar shear box, each scouring pit simulation mechanism includes a bracket disposed in the laminar shear box, the bracket is equipped with a telescopic arm connected to a cutting plate, and the cutting plate is curved fan-shaped. When the cutting plates move to positions where they are in contact with an outer wall of the suction caisson, the cutting plates are mutually connected to form a ring surrounding the suction caisson. An inner edge of the ring forms a complete circle attached to the outer wall of the suction caisson, an outer edge of the ring is higher than its inner edge, and the outer edge is located above the saturated soft clay in the water body.