高速铁路技术
高速鐵路技術
고속철로기술
HIGH SPEED RAILWAY TECHNOLOGY
2013年
6期
66-69
,共4页
铁路噪声%成灌线%降噪方案%声屏障
鐵路譟聲%成灌線%降譟方案%聲屏障
철로조성%성관선%강조방안%성병장
railway noise%Chengdu-Dujiangyan line%noise reduction plan%sound barriers
经济的高速发展、城市化进程的不断加快导致高速铁路、轻轨等市域、城际快速交通方式成指数增长。随之而来的次生环境污染---噪声成为民众重点关注和亟待解决的环境问题。迄今为止，建立声屏障可能是解决城市交通噪声污染最为有效的途径。以成灌铁路降噪方案设计为例，从结构形式、安装条件、荷载等关键技术问题探讨和介绍铁路声屏障的创新性运用。首先，多元化降噪适合诸如成灌铁路此类敏感点多、复杂的铁路工程。再者，半插板式及弧形结构声屏障是一种全新的桥梁声屏障结构形式。成灌线降噪工程在全线桥梁段预留声屏障安装条件和荷载遮板内贴吸声板，是兼顾城市发展的降噪新措施。此外，轨面吸声板亦为国内首次运营采用，这是从噪声源强上进行有效控制的突破性降噪措施。通过成灌铁路各种类型降噪措施的设计和实践，一方面为降低运营后对两侧居民的噪声影响；另一方面为高速铁路声屏障设计提供运用实例和参照。
經濟的高速髮展、城市化進程的不斷加快導緻高速鐵路、輕軌等市域、城際快速交通方式成指數增長。隨之而來的次生環境汙染---譟聲成為民衆重點關註和亟待解決的環境問題。迄今為止，建立聲屏障可能是解決城市交通譟聲汙染最為有效的途徑。以成灌鐵路降譟方案設計為例，從結構形式、安裝條件、荷載等關鍵技術問題探討和介紹鐵路聲屏障的創新性運用。首先，多元化降譟適閤諸如成灌鐵路此類敏感點多、複雜的鐵路工程。再者，半插闆式及弧形結構聲屏障是一種全新的橋樑聲屏障結構形式。成灌線降譟工程在全線橋樑段預留聲屏障安裝條件和荷載遮闆內貼吸聲闆，是兼顧城市髮展的降譟新措施。此外，軌麵吸聲闆亦為國內首次運營採用，這是從譟聲源彊上進行有效控製的突破性降譟措施。通過成灌鐵路各種類型降譟措施的設計和實踐，一方麵為降低運營後對兩側居民的譟聲影響；另一方麵為高速鐵路聲屏障設計提供運用實例和參照。
경제적고속발전、성시화진정적불단가쾌도치고속철로、경궤등시역、성제쾌속교통방식성지수증장。수지이래적차생배경오염---조성성위민음중점관주화극대해결적배경문제。흘금위지，건립성병장가능시해결성시교통조성오염최위유효적도경。이성관철로강조방안설계위례，종결구형식、안장조건、하재등관건기술문제탐토화개소철로성병장적창신성운용。수선，다원화강조괄합제여성관철로차류민감점다、복잡적철로공정。재자，반삽판식급호형결구성병장시일충전신적교량성병장결구형식。성관선강조공정재전선교량단예류성병장안장조건화하재차판내첩흡성판，시겸고성시발전적강조신조시。차외，궤면흡성판역위국내수차운영채용，저시종조성원강상진행유효공제적돌파성강조조시。통과성관철로각충류형강조조시적설계화실천，일방면위강저운영후대량측거민적조성영향；령일방면위고속철로성병장설계제공운용실례화삼조。
High-speed railway has boomed exponentially with the acceleration of economy and urbanization.Consequent-ly,secondary environmental pollution-noise becomes a publicly focused environmental problem that need to be solved immediately.Up to now,sound barriers have been used as an efficient way to solve urban traffic noise pollution.In this paper,the noise reduction plan on Chengdu-Dujiangyan line is taken as the study case to present the structure forma-tion,installation conditions,loading and such key technical issues in an innovative way.Firstly,diversified noise reduc-tion method is suitable to Chengdu-Dujiangyan line,which is involved with many complex sensitive points.Furthermore, the semi-plug plate and arc structure constitute a new sound barrier on railway bridges.The sound barrier installation conditions reserved and load cover plate affixed with acoustic panels across the bridge section is a new noise reduction measure that accommodates the development of new urban areas.In addition,the rail acoustic panels are also initially used domestically,which is a breakthrough in noise reduction and may effectively control noise fundamentally.The de-sign and practice of various noise reduction measures on Chengdu-Dujiangyan line not only reduce the undesired sound to the nearby residents,but provide a living example and reference to the design and construction of future high-speed rail-way.
