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隔声屏障声学性能评价及测量方法

最后更新时间:2020/1/5 13:04:28   作者:   已经有69个人浏览并咨询。

  隔声屏障声学性能评价及测量方法

  现场测量降噪指标:根据环境影响报告书,安装隔声屏障鼎盛彩票app后本项目沿线敏感点噪声值下降10dB(A)以上。

鼎盛彩票app  GESHENGPINGZHANGJIEGOUCAILIAOSHENGXUEXINGNENG:SHIYANSHIPINGJUNGESHENGLIANGYING≥35dB,XISHENGPINGDEXISHENGXISHUZAISHIYANSHICELIANGTIAOJIANXIA,ZHONGXINPINLVWEI125-4000HzDEXISHENGXISHUJUNYINGDAYU0.5,PINGJUNXISHENGXISHUYINGDAYU0.82。

  GESHENGPINGZHANGSHENGXUEXINGNENGDEPINGJIAYUCELIANGFANGFA

鼎盛彩票app  1)GESHENGPINGZHANGJIANGZAOXIAOGUOYONG63—4000HzDEBEIPINDAIHUO50YI10000HzDE1/3BEIPINDAIDECHARUSUNSHILAIPINGJIA。

  2)GESHENGPINGZHANGXISHENGCAILIAODEXISHENGXINGNENGCAIYONG125—4000HzDEBEIPINDAIHUO50—5000HzDE1/3BEIPINDAIDEXISHENGXISHULAIPINGJIA。

  3)GESHENGPINGZHANGDEGEYINXINGNENGCAIYONG125—4000HzDEBEIPINDAIHUO100—5000HzDE1/3PINDAICHUANSHENGSUNSHILAIPINGJIA。

  4)CELIANGYONGDESHENGJIJIYINGFUFUHEGUOJIGB3785GUIDINGIHUOI ISHENGJIJIYAOQIU。



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