摘要
为探讨旧水泥砼路面冲击压实施工对周围构筑物产生的振动影响,需进行现场振动测试分析.文中通过在道路两侧埋设加速度传感器监测振动信号,分析了冲压振动在道路两侧传播的衰减规律;通过分析对比设置隔振沟前后的加速度量值,发现隔振沟的隔振效果显著.文中还提出了距冲击压实作用点15m以外为冲压振动对道路两侧构筑物影响的安全范围,研究结论可为旧水泥砼路面冲击压实施工提供参考.
Field vibratory measurement analysis is necessary to the investigation into the vibration of roadside structures caused by the impact compaction of existing cement concrete pavement. In this paper, the roadside vibratory impulse propagation and corresponding declining trend during the impact compaction are summarized based on the vibratory signals measured by the acceleration transducers set at the roadside. Different acceleration magnitudes with/without the isolation trench between the vibration source and the structures are also analyzed and compared, showing that the trench is helpful to the vibration isolation. Moreover, it is concluded that the safe range to prevent roadside structures from being affected by the impact compaction is 15 m far away from the compaction source. Thus, a guideline is provided for the practical impact compaction of existing cement concrete pavement.
出处
《华南理工大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2005年第11期94-97,共4页
Journal of South China University of Technology(Natural Science Edition)
基金
广东省交通厅科技项目(2001-03)
关键词
冲击压实
旧水泥砼路面
振动测试
impact compaction
existing cement concrete pavement
vibratory measurement
