模块化生态声屏障在长湘高速公路上的应用研究  

The Application Research of Modular Ecological Sound Barrier in Changsha to Xiangtan Highway

作　　者：李定策[1] 叶颖[1] 杨帆[1] 

机构地区：[1]湖南省交通科学研究院,湖南长沙410015

出　　处：《公路工程》2014年第3期69-72,共4页Highway Engineering

基　　金：湖南省交通科技项目(CXKJSF0207)

摘　　要：立足当前国家加强交通环境保护的背景下,研发设计出了箱体式生态声屏障和模块化生态声屏障。以长湘高速公路的一处噪声敏感点作为声屏障示范工程应用。在应用前期,运用Cadna/A模拟软件对该示范工程点进行噪声模拟,得出该高速公路运营后,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达标/超标情况,从而避免了声屏障设置不合理而重复建设造成经济浪费,为后期声屏障设置提供了科学的参考依据。施工完后,在运营期进行降噪效果监测,结果表明通过设置模块化生态声屏障可以达到Cadna/A软件预期模拟的效果。In a context of the current society strengthening traffic environment protection, the stud- y exploited and designed ease type ecological sound barrier and modular ecological sound barrier. In Changsha-Xiangtan highway, an environmental sensitive site was selected as demonstration project appli- cation. The Cadna/simulation software was applied to simulate noise sensitive spots of the demonstration project. With and without setting sound barrier, environmental noise numerical distribution and sound environmental quality were separately showed. Thus, the two provided reference material for sound barri- er design, whieh could maximally avoid unreasonable and wasteful construction. Lastly, sound environ- mental monitoring results showed that the sound environmental quality of sensitive area reached noise standard requirement. It meant that the application of modular ecological sound barrier could effectively protect the environment sensitive area along the demonstration project.

关 键 词：生态声屏障 高速公路 Cadna/A模拟软件 交通噪声 

分 类 号：X734[环境科学与工程—环境工程]