Yu Chuang, Du Guangyin, Liu Songyu. TESTS ON EXCESS PORE WATER PRESSURE INDUCED BY DRIVING GROUP PRESTRESSED TUBULAR CONCRETE PILES[J]. INDUSTRIAL CONSTRUCTION, 2009, 39(8): 69-71,100. doi: 10.13204/j.gyjz200908018
Citation:
Yu Chuang, Du Guangyin, Liu Songyu. TESTS ON EXCESS PORE WATER PRESSURE INDUCED BY DRIVING GROUP PRESTRESSED TUBULAR CONCRETE PILES[J]. INDUSTRIAL CONSTRUCTION, 2009, 39(8): 69-71,100. doi: 10.13204/j.gyjz200908018
Yu Chuang, Du Guangyin, Liu Songyu. TESTS ON EXCESS PORE WATER PRESSURE INDUCED BY DRIVING GROUP PRESTRESSED TUBULAR CONCRETE PILES[J]. INDUSTRIAL CONSTRUCTION, 2009, 39(8): 69-71,100. doi: 10.13204/j.gyjz200908018
Citation:
Yu Chuang, Du Guangyin, Liu Songyu. TESTS ON EXCESS PORE WATER PRESSURE INDUCED BY DRIVING GROUP PRESTRESSED TUBULAR CONCRETE PILES[J]. INDUSTRIAL CONSTRUCTION, 2009, 39(8): 69-71,100. doi: 10.13204/j.gyjz200908018
In marine soft ground,the prestressed tubular concrete pile(PTC Pile) driven by hammering method induces the increase in excess pore water pressure(EPWP).The following results are obtained by field test.The excess pore water pressure increases with time during pile installation and dissipates with time after installation.The maximum EPWP reaches as high as 80 kPa.The dissipation time of excess pore pressure varies with the time and the distance from the pile.As 1 month elapsed after installation,the residual EPWP remains still with the value in the range of 10 to 20 kPa.The accumulations of EPWP in group piles driving cause the high level stress in the ground.Therefore,the rational measures for controlling the excess pore water pressure pile installation should be taken during installation of group piles.
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