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立足当前社会加强生态环境保护与交通噪声防治的背景,研发设计了4种类型生态声屏障。首先,系统评价筛选出模块化生态声屏障作为长湘高速公路的声屏障示范工程应用。其次,运用Cadna/A模拟软件对该示范工程点进行噪声模拟,得出设置声屏障和未设置声屏障的声环境数值分布以及敏感点的声环境质量情况,从而为后续声屏障设计提供参考,并避免声屏障设置不合理而造成经济浪费。最后,运营期进行的声环境监测结果表明,敏感区域的声环境质量能达到噪音标准要求。这表明应用模块化生态声屏障能达到有效保护该示范工程沿线声环境敏感区域的目的。
Based on the current background of strengthening the protection of the ecological environment and traffic noise prevention and control in the current society, four types of ecological sound barriers have been developed and designed. First of all, the system evaluation screened a modular ecological sound barrier as Chang Xiang Highway sound barrier demonstration project application. Secondly, using the simulation software of Cadna / A to simulate the noise of the demonstration project, the acoustic environment with sound barrier and no sound barrier installed and the acoustic environment quality of the sensitive point are obtained, which can provide a reference for the subsequent sound barrier design. And to avoid the sound barrier set unreasonable resulting in economic waste. Finally, the acoustic environment monitoring results during the operation period show that the acoustic environment quality in the sensitive area can meet the noise standard requirements. This indicates that the application of modular ecological sound barrier can achieve the purpose of effectively protecting the acoustic environment sensitive area along the demonstration project.