Tunnel boring machines are used for...Tunnel boring machine using shield methodThe tunnel boring method involves the excavation machine constructing (laying) the tunnel while掘进 simultaneously.ShieldIt refers to the supporting segments (tunnel lining segments), which differ from the open-cut construction method. Tunnel boring machines vary based on their working principles.Soil Pressure Balancing Machine，Open-chest shield machine
，Air pressure shield tunneling machineSoil mixing pressure shield tunnel boring machine, circular shield tunnel boring machine, rectangular shield tunnel boring machine, TBM tunnel boring machine.Trenchless pipe jacking machine）。
1. Tunnel boring machine model scale: 1:15, strictly in accordance with the drawing specifications. Model diameter is approximately 400mm, length 3000mm.
2. The model appearance and color of the tunnel boring machine are painted according to the actual color requirements of the machine, with a strong metallic feel. Additionally, the front part of the machine is marked with a "logo" abbreviation.
3. The tunnel boring machine model is primarily made of acrylic glass, glass fiber reinforced plastics, and engineering plastics, with some transmission devices using metal components. All parts are painted in their actual colors. The model features four dynamic simulation demonstrations: the uniform rotation of the cutting head (electrical simulation), the 360-degree uniform rotation of the segment assembling machine (electrical simulation), the reciprocating movement of the hydraulic jack (electrical simulation), and the electric demonstration of the auger.
4. The full panoramic view showcases the structural composition of the tunnel boring machine, employing section and perspective techniques to highlight the key structural features of the equipment and mechanisms. It dynamically interprets the operational processes of each system through lighting, stereoscopic perspective, and electric rotation methods.
5. Power Supply: Model operates on 220V, 50Hz, current ≦ 5A, bulb load voltage 3-6V, low-voltage safety equipment.
