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首页> 美国政府科技报告 >The Effect of Laboratory Compaction on the Unconsolidated-Undrained Strength Behavior of a Highly Plastic Clay
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The Effect of Laboratory Compaction on the Unconsolidated-Undrained Strength Behavior of a Highly Plastic Clay

机译：实验室压实对高塑性粘土疏松不排水强度特性的影响

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Samples of the St. Croix clay were compacted by the kneading device to fit moisture-density values on impact compaction control curves. The compacted combinations were for low, medium and high energies at moisture contents dry, near, and wet of optimum. The samples were confined at levels representing various positions within an embankment. Both confinement and shear to failure were without drainage. Regression techniques were used to form statistically valid equations for the dependent variables of dry density and compressive strength. Dry of optimum density was a function of water content and compactive work ratio, while wet of optimum density depended upon water content only. Dry of optimum compressive strength depended upon water content, dry density, degree of saturation and confining pressure. Wet of optimum strength decreased with increasing water content. These equations will be helpful in writing compaction specifications to control as compacted stability of clay embankments.

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