How can the drawing of a buried water tank 3.5 m deep from the surface be defined in idecad? horizontal forces are important (such as ground thrust, water pressure, flat pressure)
The water tank can be modeled using panels and a raft foundation (Panels can be modeled as a shell, and a superstructure interactive solution is required for the raft and panels to be solved together). You can define loads such as soil effect and water effect on the panels by examining the link below. In addition, water tank-like structures can be modeled by using the pool command in the program. In both cases, it is your initiative to check the inquiries requested from you regarding the water tank.