Project introduction: The soundproof room assembly project of the dynamic load laboratory of Wuhan EMU base is the third one in the world and China's first high-speed rail dynamic load experimental research and development project. The project includes sound insulation, shock absorption, ventilation and air conditioning, electric control integration, and the overall size of the sound insulation cover. It is 15300 mm × 9060 mm × 5540 mm. The test bench simulates the performance testing of the EMU under high-speed operation. The noise reduction requirements are extremely high. The sound pressure level at a distance of 1m will reach 125dB (A), which also generates a lot of heat. In order to ensure a good working environment for indoor staff, it is necessary to comprehensively control the vibration noise of the equipment. NCC Shenzhen provides structural, electromechanical, HVAC, vibro-acoustic design, deepening, project construction and acceptance general contracting integration services.