高速公路声屏障降噪效果分析及选型适用性研究

发布时间：2018-03-16 12:21

本文选题：高速公路　切入点：交通噪声　出处：《长安大学》2014年硕士论文　论文类型：学位论文

【摘要】：随着高速公路的快速发展和健康运营，我国高速公路网的建设基本形成。高速公路方便了地面交通，带动了区域经济，同时伴随着高速公路的不断建设与交通量的增加，也带来了沿线城乡区域噪声污染问题。当今交通噪声污染问题日益严重，已经成为了道路交通中不可忽视的问题。声屏障凭借其降噪效果显著、建筑加工灵活方便、节约土地、环境适应性强等优势，已经成为目前国内外治理交通噪声的一项重要措施与技术研究方向。文中通过研究高速公路交通噪声的产生原因、影响因素、频谱特性、时域特征以及分布特点，掌握交通噪声的自身特征与一般规律。根据声屏障降噪原理与噪声衰减值计算方法，列举国内外常用的声屏障结构形式与材料构成，，对比分析各种类型声屏障的降噪性能与适用范围，为下一步高速公路声屏障的降噪研究与不同环境适用性分析做好理论准备。本文依托云南省武昆高速公路及《基于GIS的公路敏感区交通噪声预测与控制方法研究》科研项目，着重研究噪声控制方法。在噪声控制方法中，本文主要研究设置声屏障降噪方式。在分析不同类型声屏障的降噪性能与适用范围后，本文还概括影响声屏障适用性的各方面因素，为下面高速公路敏感目标声屏障选型提供依据。通过了解武昆高速公路交通噪声污染现状，结合当地地形、环境、气候及经济条件，展开对高速公路沿线敏感目标的认定，并根据交通量状况实地监测敏感目标噪声值，判断敏感目标降噪必要性，最终进行降噪措施制定与声屏障选型方案。
[Abstract]:With the rapid development and healthy operation of freeway, the construction of expressway network in China is basically formed. Expressway facilitates ground transportation, promotes regional economy, and accompanied by the continuous construction of expressway and the increase of traffic volume. The problem of traffic noise pollution is becoming more and more serious, and it has become a problem that can not be ignored in road traffic. With its remarkable noise reduction effect, the noise barrier is flexible and convenient for building processing and saves land. The advantage of strong environmental adaptability has become an important measure and technical research direction of traffic noise control at home and abroad. In this paper, the causes, influencing factors, spectrum characteristics, time domain features and distribution characteristics of expressway traffic noise are studied. According to the noise reduction principle of noise barrier and the calculation method of noise attenuation value, this paper lists the structural forms and material composition of noise barrier commonly used at home and abroad. The noise reduction performance and applicable range of various types of noise barriers are compared and analyzed, which makes a theoretical preparation for the next research on noise reduction of highway noise barriers and the analysis of applicability of different environments. Based on the research project of Wukun Expressway in Yunnan Province and the Research on Traffic noise Prediction and Control method in Highway sensitive area based on GIS, this paper focuses on the noise control method. In the noise control method, After analyzing the noise reduction performance and applicable range of different types of noise barriers, this paper also summarizes the factors that affect the applicability of noise barriers. It provides the basis for the selection of sound barrier for the following expressway sensitive targets. Through understanding the current situation of traffic noise pollution in Wu-Kun Expressway, combining with the local terrain, environment, climate and economic conditions, the identification of sensitive targets along the highway is carried out. According to the traffic condition, the noise value of the sensitive target is monitored on the spot, the necessity of noise reduction is judged, and the noise reduction measures and the selection scheme of the noise barrier are worked out.
【学位授予单位】：长安大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U417;U491.91

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