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Test and Study of Applying Dynamic Compaction on High Loess Embankment

Wang Yue-xian

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Abstract

Based on the dynamic compaction model test,the effective compaction width and depth of high loess embankment have been studied.The test results reveal that the engineering properties of loess can meet with the requirements of embankment filled in a short time with dynamic compaction.The effective lateral width of compaction is 0.8-1.34multiplied by pounder diameter.The effective depth of compaction has been related with many factors such as moisture content,tamping times,initial dry density,pounder diameter and tamping energy.To obtain the improvement depth,a mathematical equation is proposed and its reliability is demonstrated.

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What this paper is about

Based on the dynamic compaction model test,the effective compaction width and depth of high loess embankment have been studied.The test results reveal that the engineering properties of loess can meet with the requirements of embankment filled in a short time with dynamic compaction.The effective lateral width of compaction is 0.8-1.34multiplied by pounder diameter.The effective depth of compaction has been related with many factors such as moisture content,tamping times,initial dry density,pounder diameter and tamping energy.To obtain the improvement depth,a mathematical equation is proposed and its reliability is demonstrated.

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Available abstract

Based on the dynamic compaction model test,the effective compaction width and depth of high loess embankment have been studied.The test results reveal that the engineering properties of loess can meet with the requirements of embankment filled in a short time with dynamic compaction.The effective lateral width of compaction is 0.8-1.34multiplied by pounder diameter.The effective depth of compaction has been related with many factors such as moisture content,tamping times,initial dry density,pounder diameter and tamping energy.To obtain the improvement depth,a mathematical equation is proposed and its reliability is demonstrated.

Key concepts: Compaction, Loess, Dynamic compaction, Levee, Geotechnical engineering, Proctor compaction test, Water content, Geology

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