Setting up noise barriers for underground box-type substations

The setting up of noise barriers for underground box-type substations is a key measure to effectively reduce the impact of substation operation noise on the surrounding environment.
Noise source analysis: It is necessary to accurately analyze the main noise sources of underground box-type substations, including transformers, cooling systems, ventilation equipment, etc., to clarify the frequency characteristics, propagation paths and intensity of noise.
Environmental adaptability: The design of the noise barrier needs to fully consider the characteristics of the surrounding environment, such as wind direction, terrain, building layout, etc., to ensure that the barrier can effectively block the spread of noise to sensitive areas.
Structural rationality: The barrier structure should be stable and reliable, able to withstand certain wind pressure and seismic force, and easy to install and maintain.
Economic and aesthetic: Under the premise of ensuring the sound insulation effect, reasonably control the cost, while paying attention to the coordination with the surrounding environment to enhance the beauty of the city.
Material selection
Sound-absorbing materials: Select materials with good sound absorption properties, such as ultra-fine glass wool, micro-perforated panels, etc., to effectively absorb low-frequency noise. These materials must have fireproof, moisture-proof, corrosion-resistant and other characteristics to ensure long-term use effects.
Sound insulation materials: Select high-density, high-sound insulation materials as the main body of the barrier, such as steel plates, concrete slabs, etc. These materials should have good structural strength and durability to resist the influence of the external environment.
Filling materials: Fill the inside of the barrier with sound-absorbing materials to improve the overall sound insulation effect. The selection of filling materials needs to consider factors such as its sound absorption performance, density and environmental protection.