한국농공학회논문집 (Journal of The Korean Society of Agricultural Engineers)

  • 제58권4호
  • /
  • Pages.85-95
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  • 2016
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  • 1738-3692(pISSN)
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  • 2093-7709(eISSN)
한국농공학회 (The Korean Society of Agricultural Engineers)
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LWDT와 Geogauge를 이용한 성토지반의 다짐관리 현장적용성 평가

Applicability Estimation Compaction Method of Embankment using LWDT and Geogauge

  • Lim, Seong-Yoon (National Institute of Agricultural Sciences, Rural Development Administration) ;
  • Song, Ho-Sung (National Institute of Agricultural Sciences, Rural Development Administration) ;
  • Ryu, Hee-Ryong (National Institute of Horticultural and Herbal Science, Rural Development Administration)
  • 투고 : 2015.10.12
  • 심사 : 2016.07.28
  • 발행 : 2016.07.31
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초록

PBT (Plate Bearing Test) is a commonly used compaction estimation used to provide basal support for embankments. This study presents the results from experimental evaluations PBT, LWDT (Light Drop Weight Tester) test and Geogauge test with embankment materials which consist in sandy soil, crushed stone and rock. The results of this study indicate that the regression analyze results (r) from test results between Young's modulus and $k_{30}$, $E_v$ are 0.385 and 0.111~0.496, estimated very lack of correlation. The Geogauge is frequency vibration from machine to underground. Geogauge can not measure to accuracy test results when it is used on ground of the rock or crushed stone. The regression analyze results (r) from $E_v$ and Dynamic modulus are 0.502~0.847, different estimated by calculate method, as it were, when calculate $E_v$, least square method are appeared more accuracy than gradient of secant.

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참고문헌

  1. Alshibli. K., and M. Abu-Farsakh and E. Seyman, 2005, Laboratory evaluation of the geogauge and light falling weight deflectometer as construction control tools, Journal of Materials in Civil Engineering 7(5): 560-569.
  2. Ch. Nageshwar Rao, G. Varghese and R. Shivashankar, 2008, PFWD, CBR and DCP Evaluation of Lateritic Subgrades of Dakshina Kannada, The 12th International Conference of International Association for Computer Methods and Advances in Geomechanics (IACMAG), India 1: 4417-4423.
  3. Choi, C. Y., S. H. Lee, J. H. Bae and D. H. Park, 2011, Evaluation of correlation between Strain mudulus($E_{V^2}$) and Deformation modulus ($E_{LFWD}$) Using Cyclic Plate loading Test and LFWD, Journal of Korean Geosynthetics Society 10(3) September. 2011, 33-41
  4. Fleming, P. R. 2001, Field Measurement Of Stiffness Modulus For Pavement Foundations, Transportation Research Record 1755, Annual Meeting of the Transportation Research Board for Presentation and Publication Submitted to the 2001, 69-77.
  5. Houston W. N., S. L. Houston and K. D, Walsh, 1994, Compacted High-Gravel-Content Subgrade Materials, Journal of Transportation Engineering, ASCE 120(2): 193-205. https://doi.org/10.1061/(ASCE)0733-947X(1994)120:2(193)
  6. Kim, D. S., W. S. Seo, and G C. Kweon, 2005, Evaluation of Field Nonlinear Modulus of Subgrade Soils Using Repetitive Static Plate Bearing Load Test, Journal of the Korean geotechnical society 21(6): 67-79 (in Korean).
  7. Kim, D. S., S. Y. Park and S. I. Kim, 2008, Evaluation of Correlation between Subgrade Reaction Modulus and Strain Modulus Using Plate Loading Test, Journal of the Korean geotechnical society 24(6): 57-67 (in Korean).
  8. Korea Rural Corporation, 2000, Version of Civil in Special Specifications of Rural Area Development Project(in Korean).
  9. Korea Expressway Corporation, 2005, Version of Civil in Special Specifications of highway construction (in Korean).
  10. Lim, S. Y., 2014, In-situ Compaction Characteristics and Applicability Estimation of Compaction Method in Rock Fill, Journal of the Korean Society of Agricultural Engineers 56(2): 25-35 (in Korean). https://doi.org/10.5389/KSAE.2014.56.2.025
  11. Moshe, L, and Y. Goldberg, 2001, Quality Assessment During Road Formation and Foundation Construction: Use of Falling-Weight Deflectometer and Light Drop Weight, Journal of the Transportation Research Board 1755: 69-77. https://doi.org/10.3141/1755-08