The utility model provides a novel road
sound barrier which comprises a plurality of barrier units, every two adjacent barrier units are connected through a connecting base, each barrier unit comprises a foamed aluminum body, a buckle, a back plate, a sealing plate, a steel stand column and a rib plate, and the porous structure of each foamed aluminum body can effectively absorb sound
waves; meanwhile, a composite sound absorption and
insulation layer is formed through the attaching design of the back plate and the foamed aluminum, and the reflection attenuation capacity of low-
frequency noise is enhanced. The rib plates are arranged in the containing grooves shared by the adjacent units in a penetrating mode, a continuous barrier face is formed,
sound wave diffraction at the joints is eliminated, the steel stand columns and the back plates connected in an embedded mode form a rigid
supporting system, the reinforcing effect of the horizontal rib plates is matched,
structural vibration noise is reduced, and the sound insulation index of the whole
sound barrier is improved. The barrier units are in rapid
butt joint through the connecting bases and the buckles, self-positioning installation is achieved through the penetrating structures of the containing grooves and the rib plates, the installation precision requirement in the vertical direction is simplified through the
embedded design of the back plates and the flanges of the steel stand columns, and installation is convenient.