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임성윤 ( Lim Seong Yoon ),최영철 ( Choi Yung Chul ),송창섭 ( Song Chang Seob ) 한국농공학회 2007 한국농공학회 학술대회초록집 Vol.2007 No.-
The main objective of this study is to establish the specification of the lift thickness for embankment construction with respect to the soil properties and the compaction energy of equipments. Also, the algorithm is developed to get the accurate results from the laboratory tests. The physical and mechanical properties of soils after compaction has been selected and investigated to establish new guide of compaction method and improve previously used quality control for compaction. In this study, the guidance of compaction control is suggested based on mechanical characteristics of soils obtained from lab experiment results. The algorithm to estimate maximum density of soils is developed for the field application. This study provides the standard of lift thickness associated with the compaction energy of equipment, mechanical characteristics of soils and improves scientific control of compaction with respect to the applicability in construction fields.
김경석(Kyung-Suk Kim),최영철(Yung-Chul Choi),김태수(Tae-Soo Kim),임성윤(Seoung-Yoon Lim) 한국토목섬유학회 2007 한국토목섬유학회 학술발표회 Vol.2007 No.11
Geogrid used in MSE wall experiences installation damage during compaction of backfill material due to contact pressure of soil particle and abrasion with particle rearrangement. In this study factors affecting the installation damage were analyzed by field test using two geogrids and soils having diverse gradation and maximum particle size. Test results show that installation damage is affected by polymer used, tensile strength of geogrid, maximum particle size of back fill material and grade distribution. Geogrid made of polyester and lower strength ones are more vulnerable to installation damage than high density polyethylene geogrid and high strength ones. For backfill material, installation damage is higher when maximum particle included is larger and generally larger particle affect installation damage more than smaller one.