铁道标准设计2017，Vol.61Issue(3)：4-9,6.DOI:10.13238/j.issn.1004-2954.2017.03.002
GJ-Ⅲ减振扣件轨道对轨道交通高架段环境噪声的影响分析
Analysis of the Influence of GJ-Ⅲ Fastener Vibration Damping Track on Environment Noise of Metro Viaduct Section
摘要
Abstract
For the purpose of studying the specific effects of different forms of vibration damping tracks on the environment noise reduction of metro viaduct section, this paper takes the surrounding environment noise in viaduct section of a domestic metro line as the research object and tests are conducted to measure the level of environment noise induced by the metro vehicle running on the two different tracks of the viaduct section at the speed of 110 km/h. Then the original evaluation method is changed and the more audile loudness analysis method is introduced to conduct comprehensive assessment of the level of environment noise. Later, the noise levels of the two forms of tracks are compared and analyzed based on those assessment results and some new ideas are proposed. The results show that:(1)compared with DZⅢ-1 type ordinary fastener vibration damping track, GJ-Ⅲtype medium fastener vibration damping track has no evident effects on lowering the level of noise at all measuring points except for one under the central line of the viaduct;( 2 ) the loudness analysis reveals that the perception of human ears on the environmental noise may be intensified in presence of GJ-Ⅲ type medium fastener vibration damping track.关键词
轨道交通/环境噪声/GJ-Ⅲ型中等减振轨道/A计权声压级/响度Key words
Rail transit/Environment noise/GJ-Ⅲmedium vibration damping track/A-weighed sound pressure level/Loudness分类
交通工程引用本文复制引用
王平,唐剑,杨鹏,赵才友,徐鸿..GJ-Ⅲ减振扣件轨道对轨道交通高架段环境噪声的影响分析[J].铁道标准设计,2017,61(3):4-9,6.基金项目
国家杰出青年基金项目(51425804) （51425804）
