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The authors should pay attention to the problem of vibration reduction and noise reduction in the orbital structure of the urban orbit design, combining the bidding and design work of the Beijing Metro Line 5, the Shanghai Rail Transit L4 Line, the M3 Line, and the Shanghai Metro Construction Company. The research undertaken on the topic of vibration reduction and noise reduction summarizes how to select and design the environmental protection technology in the design of the track structure, and elaborates on the successful or ongoing research in recent years. A new type of track structure with good technical characteristics and environmental performance.
The following is a detailed explanation of some theoretical viewpoints of the experimental research on the rubber-shoe-type elastic support block track structure. Then, a new form of domestic track vibration damping, namely the orbital vibration damper buckle, has been widely used. For a comparative explanation. 13785855258 Pay
The track is the basis of subway and light rail operation equipment. It directly bears the train load and guides the train. Most of the rail transit passes through or is located in the downtown area. Therefore, in the design of the urban track, not only the technical characteristics and structural functions of the track structure are strict. Requirements, and the track structure must meet the environmental protection requirements for vibration reduction, noise reduction, and stray current prevention.
Tests and surveys along the subways in Beijing and Shanghai have shown that the vibration of residents along the subway during the operation is noticeable. This requires us to fully consider the impact on the environment along the route during the planning and design of urban rail transit, learn from the successful experiences at home and abroad, and study the corresponding countermeasures and measures. Can we reduce the vibration and noise generated by noise sources such as wheel-rail noise in the To the lower limit, avoiding the formation of another public hazard and residents’ litigation compensation is the key to the construction of rail transit.
1 Design principles of environmental protection in orbital structures
Actively and steadily adopt new processes, new technologies, and new materials, and strive to meet the environmental protection requirements of vibration reduction, noise reduction, and stray current prevention so as to reduce the impact on the surrounding environment.
2 Environmentally friendly track structure
Considering environmental protection, the main considerations for the vibration reduction and noise reduction measures of track structures are to start with the design of rail fasteners and track beds.
Fasteners
In terms of rail fasteners, although the current rail damper fasteners are widely used as a new form of domestic rail vibration damping, the authors believe that no matter from elastic fasteners to W J-2, to rail dampers, the The vibration effect is still not ideal. Our company mainly conducts a series of indoor simulation tests, on-site comparison tests, on-site construction explorations, etc. for the purpose of vibration damping of rubber boots in rail transit projects. This type of rubber boots will be used. The elastic support block track structure is a very good technological innovation applied to underground and elevated rail transit lines, and has broad application prospects.
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