Liuyang River Model TBM shield machine simulation model construction model using plexiglass, glass, steel, plastics production, cutter and other major components, the main stand, the other part of the force, the use of metal transmission components, each component according to the physical color painting . Stratigraphic section, the main use of polymer gum and a variety of off-packing production; main frame shield machine, using the framework of engineering materials; transmission parts, mechanical parts of the metal parts, to ensure the overall strength and reliability of the equipment. Shield machine plexiglass shell pearl gray with transparent glass combine for production. 1:20 ratio of production based on actual product features. Model specification: Specification pedestal 5000mm * 1000mm * 1200mm. Shield: φ450 × 4500 mm.