中国园林
期刊搜索:
  • 当期推荐
  • 期刊检索
  • 目录索引
  • 业界新闻
  • 投稿须知
  • 广告服务
  • 友情链接
  • 关于我们
  • 返回首页
远程稿件处理
期刊杂志

    北京高架轨道交通沿线绿地噪声衰减效果研究

    关键词:风景园林;高架轨道交通;噪声预测;噪声衰减

    Key words:landscape architecture; viaduct rail traffic; noise prediction; noise attenuation

    摘要:轨道交通系统沿线绿地可以有效地降低高架轨道交通噪声。选取北京地铁13号线沿线15块绿地进行高架轨道交通噪声测试实验。采用相关性分析方法对绿地噪声净衰减值与6个影响因子进行分析,提出绿地植物配置建议和噪声衰减预测数学模型。实验结果表明:绿地植物群落噪声衰减效果明显,声源高度、绿地宽度、测试点与噪声源的水平距离、植物配置指数、郁闭度和契合度各影响因素与绿地噪声净衰减值的P值分别为0.632、0.538、0.126、0.048、0.024和0.143,植物配置指数和郁闭度呈显著相关性,在降噪绿地设计时应着重考虑绿地的这2个因子。

    Abstract:Green vegetation along the viaduct rail traffic system (VRTS) plays a vital role in the reduction of noise produced by VRTS. An observational trial to obtain practical data is a convinced method. The noise testing experiments were conducted in 15 patches of greenery along Beijing Subway Line 13. Based on the data analysis on correlation between excessive noise attenuation and six factors, suggestions on green plant configuration and the mathematical model to forecast the attenuation effect are worked out. The results showed that green plant community has obvious effect to reduce noise. The SPSS software analysis shows that P value of the correlation coefficient of the height of sound source, the width of greenbelt, the horizontal distance of test point and noise source, plant configuration index, canopy density and fitness are 0.632, 0.538, 0.126, 0.048, 0.024 and 0.143 respectively. Plant disposition index and canopy density showed a significant correlation. Thus, the design of noise reduction greenbelt should consider them.