城市公路隧道下穿房屋引起的环境振动影响研究  

Analysis of Environmental Vibration Caused by Urban Highway Tunnel Undercrossing Buildings

作　　者：孙晓明 SUN Xiaoming(Reseatch Institute of Environmental Physics,Shanghai Academy of Environmental Sciences,Shanghai 200233,China)

机构地区：[1]上海市环境科学研究院环境物理研究所,上海200233

出　　处：《噪声与振动控制》2022年第3期187-191,共5页Noise and Vibration Control

摘　　要：城市公路隧道大多建于地面道路下方,对于下穿住宅的新型道路开发项目,采用现场类比实测和有限元模型计算相结合的方法预测该隧道开通后道路车辆运行产生的振动影响情况。类比测试结果显示三处隧道的VLz10振级均小于67 dB。受振动影响最大的外环隧道垂直上方的振级为63.2 dB,小于标准(67 dB)3.8 dB;有限元预测结果显示隧道垂直上方的住宅建筑受影响最大,室外受影响振级为56.6 dB~63.5 dB,均小于67 dB,预估该隧道建成后环境振级在标准范围内。Urban highway tunnels are usually built under the ground roads.For a new road development project of an underpass building road,the vibration effect of road vehicles after tunnel opening is predicted by combining field measurement and finite element model calculation.The results show that the vibration level vlz10 of the three tunnels is all less than 67 dB.The vibration level above the outer ring tunnel is 63.2 dB,which is less than the standard value of 67 dB by 3.8 dB.The finite element prediction results show that the residential buildings vertically above the tunnel have the largest impact of the vibration,and the outdoor affected vibration level is 56.6 dB-63.5 dB,all of which are less than 67 dB.It can be estimated that the environmental vibration level of the tunnel is within the standard range after the completion of the tunnel.

关 键 词：环境振动 隧道 下穿 类比测试 有限元 

分 类 号：X839[环境科学与工程—环境工程] X966