Abstract:Based on laboratory model test,the promotion in effect and law of the dissipation process of excess pore water pressure by permeable pipe pile.Compared permeable pipe pile with normal pipe pile model experiment,the evidently positive effect on the dissipation of excess pore water pressure could be found in permeable pipe pile model test.The impact scope of the soil mass in the middle and lower part was the depth direction,decreasing along the horizontal direction..Permeable pipe pile in the dissipation of excess water pore pressure had the most obvious effect on the early period,greatly speeding up the construction progress. It is found that the excess pore pressure evidently reduced in the soil around the pile at the initial time of drainage pile completed. In the process of pile driving construction, the permeable pipe pile improves the construction schedule and reduces the influence on the surrounding environment.