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首页> 外文会议>International Modal Analysis Conference >Trench Warfare! The Battle Against Ground-borne Vibration
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Trench Warfare! The Battle Against Ground-borne Vibration

机译：阵地战！ 对抗地面振动的战斗

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Floor motions can disturb occupants, leading to frequent complaints and loss of functionality. In especially vibration-sensitive facilities, this issue can be more critical, as high-resolution imaging equipment with stringent vibration criteria are often employed. As urban intensification increases, new buildings are being constructed in close proximity to existing vibration sources, such as rail lines and industrial facilities. While a number of vibration mitigation options are feasible to properly isolate these sensitive facilities, vibration trenches can provide a cost-effective solution if the space is available to allow its installation. In this paper, three case studies are presented of buildings that required trenches to mitigate ground-borne vibration. The first is an office building that was to be located directly adjacent to a currently unused rail line. The owners were concerned that at some point in the future, the line would be reactivated, and wanted to address the potential issue proactively. A hollow open trench was designed which could be implemented in the future. The second project involved a performing arts centre located in close proximity to a rail switching line. Measurements on site indicated that ground-borne vibrations were likely to cause audible rumbles in the theatre. A solid concrete trench was designed to run parallel to the tracks along the property line to mitigate the vibrations. The third project involved an existing industrial facility that had recently installed a new stamping press. The facility was located adjacent to a row of residential single-family dwellings. Two parallel foam-filled trenches were designed and installed to address the ground-borne impulsive vibrations. Validation testing was completed which indicated close agreement with the modelled vibration attenuation.
机译：地板运动可以扰乱乘客，导致频繁投诉和功能丧失。在尤其是振动敏感的设施中，这个问题可能更为重要，因为通常采用具有严格振动标准的高分辨率成像设备。随着城市强化的增加，新建筑正在靠近现有的振动来源，如铁路线和工业设施。虽然许多振动缓解选项可以正确隔离这些敏感设施，但如果空间可用以允许其安装，则振动沟渠可以提供经济效益的解决方案。在本文中，提出了三种案例研究，这些建筑物需要沟渠来缓解地面振动。首先是一个办公楼，它将直接位于目前未使用的铁路线附近。业主担心的是，在未来的某些时候，该线将被重新激活，并希望积极解决潜在问题。设计了一个空心开放式沟槽，其可以在将来实现。第二个项目涉及一个位于轨道开关线附近的表演艺术中心。现场的测量表明，地面振动可能导致剧院中的可听隆隆声。设计了一个固体混凝土沟槽，用于沿着物业线的轨道平行延伸，以减轻振动。第三个项目涉及现有的工业设施，最近安装了一个新的冲压媒体。该设施位于一排住宅单户住宅附近。设计并安装了两个平行泡沫填充沟槽，以解决地面脉冲振动。完成了验证测试，该测试表明与建模的振动衰减相吻合。

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