文档介绍：------------------------------------------------------------------------------------------------ ——————————————————————————————————————***发电站噪声控制设计方案降噪目录一、项目由来.................................................................................................................. ................. 1 二、工程概况........................................................................................... ....................... ................. 1 三、设计依据.................................................................................................................. ................. 21 、声环境标准........................................................ ........................................................ ......... 22 、声厂界排放标准................................................................................................................ .23 、类比资料.............................................. .................................................................. ............. 24 、噪声背景实测------------------------------------------------------------------------------------------------ ——————————————————————————————————————值................................................................................................................ .3 四、设计原则................................. ................................................................................. ................. 3 五、设计方案.................................................................................................................. ................. 4 (一) 、***泵房................................................................................................................ ..... 41 、***泵房隔声............................................................................................................. 52 、孔洞和缝隙对隔声的影响......................................................................................... 6 3 、吸声降噪................................................................................................................ ..... 64 、隔声