Lateral Load Behavior of Full-Scale Pile Group in Clay
Lateral Load Behavior of Full-Scale Pile Group in Clay
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DOI：
10.1061/(asce)1090-0241(1998)124:6(468
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发表时间：
1998-06
影响因子：
3.9
通讯作者：
K. Rollins;K. Peterson;T. Weaver
中科院分区：
文献类型：
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作者：
K. Rollins;K. Peterson;T. Weaver
对一个足尺群桩进行了静态横向荷载试验，以确定由此产生的桩-土-桩相互作用效应。3 × 3群桩按3直径间距打入由软-中硬粘土和粉土组成的剖面，下覆砂。桩上装有测斜仪和应变计。测量了每根桩所承受的荷载。进行了单桩试验进行比较。在相同的平均荷载作用下，群桩的挠度是单桩的2倍以上。相对于单桩行为，组效应显著降低了所有行的承载力。后行承载力低于前行，中间行桩承载力最低。群桩的最大弯矩比单桩高50-100%。前、中和后排桩的P-乘数分别为0.6、0.38和0.43。使用p-乘数法得到了良好的协议之间的实测和计算群桩响应。产品展示
A static lateral load test was performed on a full-scale pile group to determine the resulting pile-soil-pile interaction effects. The 3 × 3 pile group at three-diameter spacing was driven into a profile consisting of soft to medium-stiff clays and silts underlain by sand. The piles were instrumented with inclinometers and strain gages. The load carried by each pile was measured. A single pile test was conducted for comparison. The pile group deflected over two times more than the single pile under the same average load. Group effects significantly reduced load capacity for all rows relative to single pile behavior. Trailing rows carried less than the leading row, and middle row piles carried the lowest loads. Maximum moments in the group piles were 50–100% higher than in the single pile. P-multipliers were 0.6, 0.38, and 0.43 for the front, middle, and back row piles, respectively. Good agreement between the measured and computed pile group responses was obtained using the p-multiplier approach. Design c...