Based on the theory of interaction of fluid-solid, tridimensional FEM model of dam-aircushion-water is introduced.The vibration isolation mechanism and effectiveness of air cushion has been studied.
Horacic and lumbar compression fracture replacement device with variable and turritus air-cushion might be a safe, impactful and economical nonoperative treatment.
Beam side form shall be installed after all work inspected and accepted such as beam rebar work, cushion block laying, steel inserts installation, steel doweling and pocket molding bed, etc.