Device for simulating suction penetration of suction caisson based on centrifuge model test

A device for simulating suction penetration of suction caisson based on centrifuge model test, comprising:

• a model box, a suction caisson model disposed in the model box and comprising a suction caisson, a vacuum system connected to the suction caisson, and a penetration device disposed on a top end of the model box;
• wherein soil is disposed below the suction caisson, and a top portion of the soil is provided with a water body thereon;
• and
• wherein the suction caisson is composed of a side wall in a semicircle shape, a head plate in a semicircle shape disposed on a top end of the side wall, and a connecting rod disposed on a top end of the head plate and connected to the penetration device;
• the head plate and the side wall together form a semicircular caisson-shaped structure, a side and a bottom of the semicircular caisson-shaped structure are open to form openings at the side and the bottom of the semicircular caisson-shaped structure, and an upper edge and side edges of the semicircular caisson-shaped structure at the opening at the side of the semicircular caisson-shaped structure are provided with sealing structures;
• an inner portion of the model box is divided into a first area and a second area by a tempered glass, and the suction caisson model and the penetration device are disposed in the first area;
• and an opening side of the suction caisson is in contact with a side face of the tempered glass to define a contact portion, and the contact portion is sealed through the sealing structures.