RAPID: Group Effects on Pile Downdrag Following Liquefaction

A total of 14 instrumented piles were driven into a liquefiable sand deposit. The piles were driven in two pile groups. One pile group consisted of seven closed ended pipe piles (18-inch diameter, 74-feet long) and the other pile group consisted of seven H-piles (HP 14x102, 90-feet long).共计14根传感桩（instrumented piles）被打入可液化砂层中，且分为两个桩组布设：其中一组包含7根闭口管桩（直径18英寸，桩长74英尺），另一组包含7根H型钢桩（型号HP 14x102，桩长90英尺）。