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High construction pore pressures developed in two of three dams built with same type of residual soil under similar conditions; development of pore pressure is due to combined effect of many factors -- moisture content, soil gradation, degree of compaction, rate of construction, and drainage features in dam; in residual soil fill studied which has high natural moisture content, over-compaction may induce high pore pressure; if soil contains less than 30% minus 200-sieve sizes, its fill is not likely to develop high pore pressure; drainage system in fill would not be effective in reducing pore pressure if rate of construction is high.
High construction pore pressures developed in two of three dams built with same type of residual soil under similar conditions; development of pore pressure is due to combined effect of many factors -- moisture content, soil gradation, degree of compaction, rate of construction, and drainage features in dam; in residual soil fill studied which has high natural moisture content, over-compaction may induce high pore pressure; if soil contains less than 30% minus 200-sieve sizes, its fill is not likely to develop high pore pressure; drainage system in fill would not be effective in reducing pore pressure if rate of construction is high.
Construction pore pressures in three earth dams
ASCE -- Proc (J Soil Mechanics Foundations Div)
Li, C.Y. (author)
1967
26 pages
Article/Chapter (Book)
English
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