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요약정보
既有铁路桥梁增设声屏障方法研究 / Study on Adding Noise Barrier to Existing Railway Bridges
Resource Type
Academic Journal
Authors
薛正
;
茹旭
;
李绍富
;
辛思远
;
曾家胤
;
陈锋
;
XUE Zheng
;
RU Xu
;
LI Shaofu
;
XIN Siyuan
;
ZENG Jiayin
;
CHEN Feng
Source
铁路工程技术与经济 / Railway Engineering Technology and Economy
. 38(3):9-36
Subject
既有铁路桥梁
噪声治理
桥梁声屏障
声屏障基础
Language
Chinese
ISSN
1007-9890
Online Access
초록
随着铁路运营里程和速度不断提高,铁路沿线因列车运行带来的噪声污染问题越来越突出,2022年6月《噪声污染防治法》正式实施,进一步强调了噪声排放单位对噪声污染防治的责任和义务,在此背景下,针对既有铁路的噪声污染治理措施急需深入研究探讨.本文主要对既有桥梁增设声屏障的方案进行研究探讨,从设计角度分析,对未预留声屏障设置基础条件的桥梁,现有铁路T梁不具备增设声屏障条件,箱梁无声屏障梁恒载满足增设声屏障规范限值要求,但增设声屏障降低了梁体安全余度.从施工角度分析,既有铁路桥梁增设声屏障,后植筋施工易破坏梁体钢筋,影响梁体强度,利用检修天窗点植筋和后浇混凝土的施工质量也难以保证,同时存在电缆损坏、漏电、断电风险等,会给铁路运营带来极大的安全风险.综上所述,针对既有铁路桥梁沿线噪声超标敏感目标的治理,笔者建议优先采取隔声窗措施,确需采取声屏障的路段,可设置少量独立基础声屏障,但不建议在既有桥梁增设声屏障.
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