Resolution about Amplification Phenomena of Ground Vibration on Surface Soft Layer and Vibration Countermeasures

地面振动通过土壤传播，车辆在公路和铁路上行驶时产生的地面振动会对附近的居民造成不利的环境危害。本文描述了一项通过平面路、高架路和铁路货车在现场进行的研究，以揭示振动在土壤中传播的机理，从而对站在公路和铁路旁的典型房屋造成不利影响。数据分析表明，地面振动主要以接近房屋固有频率的特定频率通过土壤传播，从而与这种地面振动产生共振，从而对其产生不利影响。在这项调查中，使用一种简单的方法来评估路面平整度，即通过在行驶中的车辆上安装合适的仪器记录的加速度水平来评估道路的路面平整度。事实证明，利用这些有用的数据来确定要覆盖在…上的路段长度是非常有用的PC墙桩护栏是一种减少道路交通引起的地面振动的手段。对某高架道路进行了现场测量和有限元分析。进行了现场模型试验和模拟分析，得出了以下结论。研究发现，在距考虑中的大桥基础25米的地方，PC墙桩护栏能够将地面和地下的振动降低约5分贝。分析结果表明，基础为刚体响应。通过三维有限元分析对PC墙桩护栏的屏蔽效果进行了定量模拟，通过现场试验和钢板桩对铁路传来的地面振动的模拟，在护栏后刚打到2m和4.5m处，分别比无护栏时的振动记录降低了约6db和12db。研究中使用的分析方法能够定性地再现钢桩护栏的抗振性能。较少

Transmitted through soil, ground vibration originating in vehicles passing on a road and railway gives rise to adverse environmental hazards on the inhabitants in its neighborhood. This paper describes a study conducted at a site by plane-roads, elevated road and railway truck to send light to the mechanism by which vibration is transmitted through soil to bring about an adverse effect on a typical house standing by the road and railway. The data analyzed revealed that the ground vibration addressed was transmitted through the soil predominantly at a particular frequency close to the natural frequency of houses, giving rise to the adverse effect on it as a result resonance with such ground vibration.The simple method use in this survey to assess the surface evenness of a road in terms of the level of acceleration recorded with a suitable instrument set up on a running vehicle proved very helpful proving useful data with which to determine the length of the section to be overlaid on the … More road as well as the performance of the overlay.PC wall-pile barrier was addressed as a means for reducing ground vibration due to road traffics. Both field measurements and an FEM analysis of an elevated road were performed. Also, field model experiments and its simulation analyses are performed From this study, the following conclusions can be made. The PC wall-pile barrier was found to be capable of reducing both surface and underground vibration by about 5dB at a distance 25m away from the footing of the considered bridge. The results from the analysis suggested that the footing responded as a rigid body. The screening effect of the PC wall-pile barrier was quantitatively simulated by the three-dimensional finite element analysis.From the field tests and its simulation by using steel sheet-pile about reducing ground vibration transmitted from the railway, at point just behind barrier driven to 2m and 4.5m, vibration by about 6dB and 12dB, respectively from that recorded at the same point with no barrier. The analytical method used in this study was found to be capable of qualitatively reproducing the performance against vibration of a barrier built with steel-piles. Less