A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Wick Drain Research at an Illinois Project Site
Field research sponsored by the U.S. Federal Highway Administration was performed in conjunction with the Illinois Department of Transportation to determine the nature and extent of pore pressures induced by installing wick drains in saturated clay soil of high plasticity, and its effect on the rate and magnitude of embankment settlement. The findings were compared with the anticipated field performance of such installations based on accepted design practice. Dissipation of pore pressure induced by wick drain installation prior to embankment construction was found to be time dependent and occurred without soil settlement, factors not included in accepted consolidation theory. Total field settlement under embankment loading was consistent with settlement established by theory; however, time to dissipate 90% of induced pore pressure in the clay was found to be approximately 5 months longer than the 3 months established by accepted radial drainage theory. These findings were used to develop an empirical equation to correct the theoretical time for 90% primary consolidation to more accurately reflect the field performance based on the premise that wick drains remain fully functional until the required field consolidation is completed.
Wick Drain Research at an Illinois Project Site
Field research sponsored by the U.S. Federal Highway Administration was performed in conjunction with the Illinois Department of Transportation to determine the nature and extent of pore pressures induced by installing wick drains in saturated clay soil of high plasticity, and its effect on the rate and magnitude of embankment settlement. The findings were compared with the anticipated field performance of such installations based on accepted design practice. Dissipation of pore pressure induced by wick drain installation prior to embankment construction was found to be time dependent and occurred without soil settlement, factors not included in accepted consolidation theory. Total field settlement under embankment loading was consistent with settlement established by theory; however, time to dissipate 90% of induced pore pressure in the clay was found to be approximately 5 months longer than the 3 months established by accepted radial drainage theory. These findings were used to develop an empirical equation to correct the theoretical time for 90% primary consolidation to more accurately reflect the field performance based on the premise that wick drains remain fully functional until the required field consolidation is completed.
Wick Drain Research at an Illinois Project Site
Landau, Richard E. (author) / Lamie, Mary C. (author) / Modeer, Victor A. (author)
Soft Ground Technology Conference ; 2000 ; Noordwijkerhout, the Netherlands
Soft Ground Technology ; 259-269
2001-03-30
Conference paper
Electronic Resource
English
Wick Drain Research at an Illinois Project Site
| British Library Conference Proceedings | 2001