摘要
空沟、碎石填充沟和排桩是三种常用的轨道交通隔振措施。为了研究三种隔振措施的隔振效果,通过大比例尺试验,采用加速度作为振动的评价指标,分别研究空沟、碎石填充沟和排桩的隔振效果。通过比较三种隔振措施与无隔振措施下影响区的加速度衰减率评价其隔振效果,同时通过三种隔振措施下距离空沟不同距离的加速度比较三种隔振措施隔振效果,研究成果对高铁隔振措施及方案的选取提供了依据。
Three conventional measures to isolate rail transportation vibration were empty trench, gravel-filled trench and piles-in-row. The vibration isolation effects were studied respectively through large scale test and the acceleration acting as vibration index. The vibration isolation effects could be evaluated through the comparison of acceleration damping ratios in the area where the above three measures were used and the area without any vibration isolation measure. The effects impacted by three measures could also be analyzed by contrasting the accelerations based on different distances to empty trench. The research results would provide a reference for the selection of high-speed railway option and vibration isolation measures.
出处
《港工技术》
2015年第4期68-71,83,共5页
Port Engineering Technology
关键词
隔振
空沟
碎石填充沟
排桩
模型试验
vibration isolation
empty trench
gravel-filled trench
piles in row
model test
