Vibration Effects Attributable to Driving of PHC Pipe Piles
Vibration Effects Attributable to Driving of PHC Pipe Piles
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DOI：
10.1061/(asce)cf.1943-5509.0000278
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发表时间：
2012-10
影响因子：
2.5
通讯作者：
Yong Tan;Hongliang Lan
中科院分区：
文献类型：
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作者：
Yong Tan;Hongliang Lan
摘要为确保83根预应力高强混凝土管桩安装过程中相邻16.7 m高混凝土框架结构（冷却塔）和在用埋地管道的安全，采用综合仪器监测方案对地面、埋地管道和冷却塔的行为进行了监测。现场测量包括：(1)不同桩深下三个相互垂直方向上的粒子速度及相应的傅里叶谱时程；(2)桩置引起的埋地管道的垂直和水平运动。通过对现场数据的分析，得出以下主要结论：(1)PHC管桩打桩与预应力混凝土桩打桩或现浇桩打桩不同，PHC管桩打桩过程中竖向振动速度不大于平面振动速度；(2)颗粒速度峰值振幅与桩突深度相对无关。
AbstractTo ensure the safety of adjacent 16.7-m-high concrete frame structures (cooling towers) and buried pipelines in service during installation of 83 prestressed high-strength concrete (PHC) pipe piles, the behavior of the ground, the buried pipelines, and cooling towers was monitored by a comprehensive instrumentation program. The field measurements included the following: (1) time histories of the particle velocities and corresponding Fourier spectra in three mutually perpendicular directions at various pile penetration depths and (2) vertical and horizontal movements of the buried pipelines caused by pile installation. Based on the analysis of the field data, the following major findings were obtained: (1) unlike the driving of prestressed concrete piles or cast in situ piles, the vibration velocity in the vertical direction was not greater than that in the plane during PHC pipe pile driving; (2) the amplitudes of the peak particle velocities were relatively independent of the pile penetration dept...