| 摘要 |
<p>A light noise absorption barrier comprises H-shaped steel (1) installed on a bridge guardrail or road bed. A micropunch noise absorption barrier (2), a transparent barrier (3), a triangular cone noise absorption barrier (4) and a circular arc cover plate (5) installed at the top of the triangular cone noise absorption barrier (4) are arranged between two adjacent H-shaped steels (1) in sequence from bottom to top. The noise absorption barrier has an overall weight of only 60% of that of a traditional integral noise insulation barrier, and is convenient for transportation and installation.</p> |
