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1)  noise barrier
声屏障
1.
The influence of leakage noise on the noise drops efficiency of elevated structure noise barrier;
漏声对于高架结构声屏障降噪效果的影响
2.
Noise barrier and activelly controlled noise barrier;
声屏障和有源噪声控制声屏障
3.
Study on computer analog of noise barrier prediction system;
计算机模拟声屏障预测系统研究
2)  sound barrier
声屏障
1.
Study on sound barrier based on microperforated panel structure with top absorbing cylinder;
顶部带吸声柱体的微穿孔声屏障的应用研究
2.
Influence of geometry shapes of sound barrier on noise reduction effect in high speed railway
高速铁路声屏障几何形状对降噪效果的影响
3.
Through field measuring and theoretic calculation to train noise,combined with main influential factors to noise mitigation effect of railway sound barrier,proof wall is considered to be effective and economical to the noise sensitive building with 1 or 2 floor along railway when the train speed is lower than 250 km/h.
通过对现场铁路列车辐射噪声测量和理论分析计算,结合影响铁路声屏障降噪效果主要因素,得出如下结论:当列车运行速度低于250 km/h时,对铁路沿线1~2层噪声敏感点建筑,采用防撞墙既有效又经济;声屏障相对越高、距轨道中心线越近,降噪效果越好。
3)  noise barriers
声屏障
1.
The reports that noise barriers is used in the pollution harness of railway noise is fewer in China.
目前尚无铁路声屏障声学设计和测量规范。
2.
Based on the present study and developing situation and the wouking principle of noise barriers,this article presents the design,application,structure and building material of noise barriers.
通过介绍声屏障的发展概况及其设置原理,简要论述了声屏障的设计和在实际中的应用,并介绍了声屏障的结构及材料要求,以使它在道路降噪中起到更好的作用。
3.
The thesis uses dimension analytical method to work out the similitude rule of noise barriers lab model test, via which noise barriers insertion loss can be measured.
应用因次分析法确定声屏障实验室模型试验相似准数,通过模型试验测量声屏障插入损失并与目前工程中常用公式预估结果比较表明,模型与实物之间的声学特性关系可以用相似法准则进行定量描述,其结论对于进行声屏障声学设计有重要参考价值。
4)  barrier [英]['bæriə(r)]  [美]['bærɪɚ]
声屏障
1.
The study of the declining model for infinite long railway barrier to moving coach;
无限长铁路声屏障对运行列车噪声降噪模型研究
2.
A Study on Technique of Barrier for Railway Traffic Noise;
轨道交通的声屏障技术研究
3.
Based on the investigation of characteristics of lightweight railway traffic noise and current barriers, a new kind of barriers for railway traffic noise was designed, which combines the advantages of absorption material and resonance absorbers.
针对现有声屏障的优缺点 ,开发研制了两种阻抗复合型声屏障 ,在轻轨交通噪声的主要频率范围内 ,该声屏障的吸声性能较出色 ,且有能够防止雨尘侵害的优点 。
5)  noise-barrier
声屏障
1.
Research on the Acoustic Characteristics and Acoustic Considerations of Noise-barrier;
道路声屏障声学特性与声学设计研究
2.
From the design and construction of several noise-barriers nearby sensitive areas of traffic noise along Cheng-Mian expressway,the design principles of a noise-barrier have been analyzed and investigated on the aspects of acoustic considerations,structure and landscape etc.
通过对成绵高速公路上多个噪声敏感区声屏障的实施 ,对声屏障的声学设计、结构设计及景观设计等方面进行了分析探讨。
3.
In view of the situation that the rise of noise level in the area protected by noise-barriers on many highways and urban roads in China, the authors think that the increasement of traffic, ratio acceleration of heavy trunks and over-loading vehicles, different kinds of apertures of noise-barriers are the main causes.
针对国内不少公路及城市道路声屏障保护区噪声级明显上升的状况 ,提出了交通量增加、重型车和超载车比例增大 ,以及各种声屏障的缝隙是影响降噪效果的主要原因 ,并对此进行了理论分析和探
6)  noise barrier
隔声屏障
1.
The engineering prosperities of PMMA plastic board are described,which was applied in a true road traffic noise barrier building in China first time.
介绍了PMMA塑料板的工程特性,并在国内一项实际工程中将其首次应用于道路噪声隔声屏障的建设,具有隔声和景观效果好的特点,为我国噪声控制技术采用一种新的隔声材料进行了有益的尝试。
2.
Based on architectural acoustics and the acoustic feafure of city traffic noise,the importance and means of establishing over head highway noise barrier are clarified from three aspects:noise source control,transmission and protection for victims.
针对城市交通噪声的声学特性 ,根据建筑声学原理 ,从噪声源控制、传播途径控制和接收者防护三个方面 ,阐述在高架路上设置隔声屏障的必要性及技术手段 ,并通过实例具体说明运算方法、设计要求和注意事
补充资料:什么是声屏障?
在声源和接收者之间插入一个设施,使声波传播有一个显著的附加衰减,从而减弱接收者所在的一定区域内的噪声影响,这样的设施就称为声屏障。

声波在传播过程中,遇到声屏障时,就会发生反射、透射和绕射三种现象。通常我们认为屏障能够阻止直达声的传播,并使统射声有足够的衰减,而透射声的影响可以忽略不计。因此,声屏障的隔声效果一般可采用减噪量表示,它反映了声屏障上述两种屏蔽透声的本领。在声源和接收点之间插入一个声屏障,设屏障无限长,声波只能从屏障上方绕射过去,而在其后形成一个声影区,就象光线被物体遮挡形成一个阴影那样。在这个声影区内,人们可以感到噪声明显地减弱了,这就是声屏障的减噪效果。

室外的声屏障一般采用砖或混凝土结构,室内的声屏障引用钢板、木板、塑料扳、石膏板和泡沫铝等结构。

声屏障的减噪量与噪声的频率、屏障的高度以及声源与接收点之间的距离等因素有关。声屏障的减噪效果与噪声的频率成分关系很大,对大于2000Hz的高频声比800一1000Hz左右的中频声的减噪效果要好,但对于25Hz左右的低频声.则由于声波波长比较长而很容易从屏障上方绕射过去,所以效果就差。通常,声屏障对高频声可降低l0—15dB。声屏障的高度,可根据声源与接收点之间的距离设计,屏障的高度增加一倍,则其减噪量可增加6dB,为了使屏障的减噪效果较好,应尽量使屏障靠近声源或接收点。

目前,声屏障主要用于铁路和公路沿线,控制交通噪声对附近城市区域的影响。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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