A Study on the Method of Calculating the Deformation Coefficient According to the Horizontal Subgrade Reaction Modulus and Cohesion

doi:10.15683/kosdi.2023.3.31.031

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2023 Vol.19, Issue 1 Preview Page Next Page

Original Article

A Study on the Method of Calculating the Deformation Coefficient According to the Horizontal Subgrade Reaction Modulus and Cohesion 수평지반반력계수와 점착력에 따른 지반변형계수 산정방법 연구: 전성재¹ㆍ정대석²*
Sungjae Jeon¹, Daeseock Jung²*; ¹Director, Technique Center, Koreangeo Consultation, Seoul, Republic of Korea
²Professor, Civil Engineering, Joongbu University, Goyang, Republic of Korea

31 March 2023. pp. 31-43

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Abstract

Purpose: In this study, an analysis of the differences between the elastoplastic analysis and the numerical analysis and a study of the design ground constant recalculation method to derive similar trends in the analysis results were conducted. Method: The relational expression between the ground reaction force coefficient and the ground deformation coefficient at the time when the wall displacement becomes the same according to shallow excavation and deep excavation was derived. Result: Based on the measurement results, reverse analysis was performed to re-calculate the ground properties suitable for the site ground, and as a result of comparing and verifying the wall displacement using the derived formula and the literature formula, the proposed formula showed the most similar value. Conclusion: If the proposed formula is used, it will be helpful in practice because it is possible to infer the most similar ground properties to the actual at the time of design.

Keywords

Modulus of Elasticity

Soil Reaction Coefficient

Back Analysis

Numerical Analysis

Displacement

연구목적: 본 연구에서는 탄소성해석과 수치해석의 차이점 분석과 해석 결과치의 유사한 경향을 도출하기 위한 설계지반정수 재산정 방법의 연구를 수행하였다. 연구방법: 얕은굴착과 깊은굴착에 따라 벽체변위가 같아지는 시점에서의 지반반력계수와 지반변형계수의 관계식을 유도하였다. 연구결과: 계측결과를 바탕으로 역해석을 진행하여 현장지반에 맞는 지반물성을 재산정하고 도출된 식과 문헌식을 이용하여 벽체변위에 대한 비교·검증한 결과 제안식이 가장 유사한 값을 나타내고 있었다. 결론: 제안식을 이용하면 설계시 실제와 가장 비슷한 지반물성치를 유추할 수 있어 실무에 도움이 될 것이다.

키워드

변형계수

지반반력계수

역해석

수치해석

변위

References

Brianon, L., Simon. B. (2012). Performance of pile-supported embankment over soft soil full-scale experiment." Journal of Geotechnical and Geoenvironmental Engineering, ASCE, Vol. 138, No. 4, pp. 551-561. 10.1061/(ASCE)GT.1943-5606.0000561
Brown, D.A. (2005). "Practical considerations in the selection and use of continuous flight auger and drilled displacement piles." Advances in Designing and Testing Deep Foundations: In Memory of Michael W. O'Neill, Austin, pp. 251-261. 10.1061/40772(170)4
Chang, M.F. (1988). "In situ testing of residual soils in Singapore." Proceeding of the 2nd International Conference on Geomechanics in Tropical Soils, Singapore, pp. 97-108.
Chang,Y.L. (1937). "Lateral Pile-loading tests." Proceeding ASCE, Vol. 102, pp. 272-278.
Chun, B.S. (2006). "A study on prediction of the coefficient of horizontal subgrade reaction for Pile using lateral Pile loading test results." Korean Geo-Environmental Society, Vol. 7, No. 2, pp. 15-24.
Cubrinovski, M., Ishihara, K. (2002). "Maximum and minimum void ratio characteristics of sands." Soils and Foundations, Vol. 42, No. 6, pp. 65-78. 10.3208/sandf.42.6_65
Cyril, P., Ali, P., Charles, S. (2004). "CMC foundation system for embankment support - A case history." GeoSupport 2004: Drilled Shafts, Micropiling, Deep Mixing, Remedial Methods, and Specialty Foundation Systems, Orlando, pp. 980-992.
David, W. (2005). "The overriding aspects of the design of geosynthetic reinforced pile supported embankments." Contemporary Issues in Foundation Engineering, 2005, Austin, pp. 1-12.
Georgiannou, V.N., Burland, J.B., Hight, D.W. (1990). "The undrained behaviour of clayey sands in triaxial compression and extension." Geotechnique, Vol. 40, No. 3, pp. 431-449. 10.1680/geot.1990.40.3.431
Kim, Y.S. (1999). "A study on the p-y curve in sand using centrifugal test." Korean Society of Civil Engineer, Vol. 19, No. 3-1, pp. 105-115.
Lee, G.H. (2014). "Soil-structure interaction analysis for the offshore wind tower with bucket foundation." Journal of Korea Society of Disaster Information, Vol. 10, No. 2, pp. 244-252. 10.15683/kosd.2014.10.2.244
Matlock, H., Reese, L.C. (1960). "Generalized solutions for laterally loaded piles." Journal of the Soil Mechanics and foundations Division, Vol. 86, No. 5, pp. 63-92. 10.1061/JSFEAQ.0000303
Schreiber, A.B., Winkler, M.E., Derynck, R. (1986). "Transforming growth factor-α: a more potent angiogenic mediator than epidermal growth factor." Science, Vol. 232, No. 4755, pp. 1250-1253. 10.1126/science.2422759 2422759
Terzaghi, K. (1955). "Evaluation of coefficient of subgrade reaction." Geotechnique, Vol. 5, No. 4, pp. 279-329. 10.1680/geot.1955.5.4.297
Woo, J.T. (2017). "A study on behavior of the earth retaining structure by field measurement and numerical analysis." Journal of Korea Society of Disaster Information, Vol. 13, No. 3, pp. 286-295.
Yun, Y.M. (2019). "Development of site management system for temporary facility construction using back analysis." Journal of Korea Society of Disaster Information, Vol. 15, No. 4, pp. 570-577.

Information

Publisher :The Korean Society of Disaster Information
Publisher(Ko) :한국재난정보학회
Journal Title :Journal of the Society of Disaster Information
Journal Title(Ko) :한국재난정보학회논문집
Volume : 19
No :1
Pages :31-43
DOI :https://doi.org/10.15683/kosdi.2023.3.31.031

[1] Brianon, L., Simon. B. (2012). Performance of pile-supported embankment over soft soil full-scale experiment." Journal of Geotechnical and Geoenvironmental Engineering, ASCE, Vol. 138, No. 4, pp. 551-561. 10.1061/(ASCE)GT.1943-5606.0000561

[2] Brown, D.A. (2005). "Practical considerations in the selection and use of continuous flight auger and drilled displacement piles." Advances in Designing and Testing Deep Foundations: In Memory of Michael W. O'Neill, Austin, pp. 251-261. 10.1061/40772(170)4

[3] Chang, M.F. (1988). "In situ testing of residual soils in Singapore." Proceeding of the 2nd International Conference on Geomechanics in Tropical Soils, Singapore, pp. 97-108.

[4] Chang,Y.L. (1937). "Lateral Pile-loading tests." Proceeding ASCE, Vol. 102, pp. 272-278.

[5] Chun, B.S. (2006). "A study on prediction of the coefficient of horizontal subgrade reaction for Pile using lateral Pile loading test results." Korean Geo-Environmental Society, Vol. 7, No. 2, pp. 15-24.

[6] Cubrinovski, M., Ishihara, K. (2002). "Maximum and minimum void ratio characteristics of sands." Soils and Foundations, Vol. 42, No. 6, pp. 65-78. 10.3208/sandf.42.6_65

[7] Cyril, P., Ali, P., Charles, S. (2004). "CMC foundation system for embankment support - A case history." GeoSupport 2004: Drilled Shafts, Micropiling, Deep Mixing, Remedial Methods, and Specialty Foundation Systems, Orlando, pp. 980-992.

[8] David, W. (2005). "The overriding aspects of the design of geosynthetic reinforced pile supported embankments." Contemporary Issues in Foundation Engineering, 2005, Austin, pp. 1-12.

[9] Georgiannou, V.N., Burland, J.B., Hight, D.W. (1990). "The undrained behaviour of clayey sands in triaxial compression and extension." Geotechnique, Vol. 40, No. 3, pp. 431-449. 10.1680/geot.1990.40.3.431

[10] Kim, Y.S. (1999). "A study on the p-y curve in sand using centrifugal test." Korean Society of Civil Engineer, Vol. 19, No. 3-1, pp. 105-115.

[11] Lee, G.H. (2014). "Soil-structure interaction analysis for the offshore wind tower with bucket foundation." Journal of Korea Society of Disaster Information, Vol. 10, No. 2, pp. 244-252. 10.15683/kosd.2014.10.2.244

[12] Matlock, H., Reese, L.C. (1960). "Generalized solutions for laterally loaded piles." Journal of the Soil Mechanics and foundations Division, Vol. 86, No. 5, pp. 63-92. 10.1061/JSFEAQ.0000303

[13] Schreiber, A.B., Winkler, M.E., Derynck, R. (1986). "Transforming growth factor-α: a more potent angiogenic mediator than epidermal growth factor." Science, Vol. 232, No. 4755, pp. 1250-1253. 10.1126/science.2422759 2422759

[14] Terzaghi, K. (1955). "Evaluation of coefficient of subgrade reaction." Geotechnique, Vol. 5, No. 4, pp. 279-329. 10.1680/geot.1955.5.4.297

[15] Woo, J.T. (2017). "A study on behavior of the earth retaining structure by field measurement and numerical analysis." Journal of Korea Society of Disaster Information, Vol. 13, No. 3, pp. 286-295.

[16] Yun, Y.M. (2019). "Development of site management system for temporary facility construction using back analysis." Journal of Korea Society of Disaster Information, Vol. 15, No. 4, pp. 570-577.

Journal of the Society of Disaster Information ISSN:1976-2208(Print) 2671-5287(Online) 한국재난정보학회논문집

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