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Performance Assessment of 3D Printed Mechanically Stabilized Earth Retaining Wall Backfilled with Recycling Soil

3D 프린팅 기술 기반 보강토 옹벽 순환토사 적용 뒤채움재의 성능 평가

Jae-Hwan Kim1
,
Jeongho Oh2*
김 재환1
,
오 정호2*
1Member, Researcher, Dept. of Railroad Infrastructure Eng., Korea National University of Transportation
2Member, Prof., Dept. of Railroad Infrastructure Eng., Korea National University of Transportation
1정회원, 한국교통대학교 철도인프라공학과 석사연구원
2정회원, 한국교통대학교 철도인프라공학과 교수
*Corresponding Author
30 April 2024. pp. 81-93
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Abstract

In Korea, numerous large-scale infrastructure construction projects and housing site developments are being undertaken. However, due to limited land availability, sourcing high-quality backfill materials that meet the standards for railroad and road embankment compaction and mechanically stabilized earth (MSE) retaining wall construction poses significant challenges. Concurrently, there has been an increase in structural failures of many MSE retaining walls, attributed primarily to reduced bearing capacity and impaired drainage performance, resulting from inadequate backfill compaction. This study aimed to analyze the structural performance and safety of an MSE retaining wall using recycled soil as backfill. We conducted small-scale model tests utilizing 3D printing technology combined with two-dimensional numerical analysis. The study quantitatively evaluated the MSE retaining wall’s performance concerning the recycled soil mixing ratio and reinforcement installation methods. Furthermore, the utility of 3D printing was confirmed through the production of an experimental wall designed to facilitate easy reinforcement attachment, mirroring the conditions of actual MSE retaining wall construction.

Keywords
3D printing
Mechanically stabilized earth retaining wall
Recycled soil

최근 국내는 다양한 대규모 사회기반 시설물 공사 및 택지 개발 등이 시행되고 있으나, 이에 반해 제한적인 국토 여건으로 철도 또는 도로 흙쌓기 비탈면 다짐 시공 또는 보강토 옹벽 뒤채움재 시공 시 기준에 부합하는 양질의 토사 수급이 어려운 실정이다. 특히, 다수의 보강토 옹벽은 부적절한 뒤채움재 다짐 시공으로 인한 지지력과 배수 성능 저하로 인한 구조물 피해사례 등이 증가하고 있다. 이에 본 연구에서는 뒤채움재로 순환토사를 활용하는 보강토 옹벽에 대하여 3D 프린팅 기술 기반 실내 모형실험 및 2차원 수치해석을 수행하여 구조적 성능 및 안전성을 분석하고자 하였다. 그 결과, 순환토사 배합비 및 보강재 설치 방법에 따른 뒤채움재 성능을 확인하였으며, 3D 프린팅 기술을 통해 실제 보강토 옹벽 시공과 유사하게 보강재 체결이 쉬운 형태의 실험상 벽체를 제작하여 3D 프린터의 활용성을 확인하였다.

References
1

Choi, K.H. (2019), "A Study on the Behavior Characteristics of MSE Walls having a Full-Height Rigid Facing and Segmental Panels by Experimental and Numerical Analyses", Kunsan National University, Degree of Doctor, Korea.

2

Drusa, M., Vlček, J., Holičková, M., and Kais, L. (2016), "Analytical and Numerical Evaluation of Limit States of MSE Wall Structure", International Journal of Civil and Environmental Engineering, Vol. 12, No.2, pp.145-152.

10.1515/cee-2016-0020
3

Heo, K.K., Park, H.K., Ahn, B.C., and Min, B.W. (2016), "Analysis on the Safety of Structure and Economics of Replacement Method Using Rock Debris in the Soft Ground - Case Study of Miho Stream Crossing Road in Cheongju City", Journal of the Korean Society of Civil Engineers, Vol.36, No.4, pp.705-713.

10.12652/Ksce.2016.36.4.0705
4

Jeon, M.H. (2021), "Carbon Neutrality and Recycled Construction Resources", Journal of the Korean Recycled Construction Resources Institute, Vol.16, No.3, pp.6-10.

5

Ju, J.W., Park, J.B., and Na, H.H. (2011), "Bulging of Reinforced Retaining Walls", Journal of the Korean Geosynthetics Society, Vol.10, No.2, pp.45-53.

6

Jung, H.S. (2004), "Behavior of A Full-Scale Geosynthetic-Reinforced Segmental Retaining Wall in A Tiered Configuration", Seongkyunkwan University, Degree of Master, Korea.

7

Jung, H.S. (2017), "Comparison of Behaviour of Straight and Curved Mechanically Stabilized Earth Walls from Numerical Analysis Results", Journal of the Korean Geosynthetics Society, Vol.16, No.4, pp.83-92.

8

Kim, B.S. (2007), "Characteristics of the Density Change of Dredged Soil by Tide Influence", Hanyang University, Degree of Master, Korea.

9

Kim, D.S., Jung, Y.H., and Choi, C.Y. (2007), "On the Enhanced Application of Retaining Walls in the Railway Industry", Journal of the Korean Geosynthetics Society, Vol.2007, No.11, pp.77-84.

10

Kim, Y.J. (2020), "Behaviour Analysis of Mechanically Stabilized Earth Wall in Curved Section by Laboratory Scale Test", Dongyang University, Degree of Master, Korea.

11

Kim, Y.M., Jeon, I.G., and Shin, Y.S. (2004), "Behavior Characteristics of Reinforced Earth Wall in Crushed Stone Soil Backfill", Journal of the Korean Society of Civil Engineers, Vol.2004, No.10, pp.4249-4254.

12

Kwon, H.M. (2016), "Performance Evaluation of Geogrid-Reinforced Crushed Stone Subbase Layer", Korea National University of Transportation, Degree of Master, Korea.

13

Langcuyan, C.P. (2021), "A Study on the behavior of Integral Bridges Using the Geosynthetic Reinforced Soil Wall with Full Height Rigid Facing based on Numerical Analysis", Kunsan National University, Degree of Doctor, Korea.

14

Lee, K.M. (2015), "A Study on Cost Effective Reinforcing Method of Geogrid MSE Wall Using Model Test and Numerical Analysis", Seoul National University of Science and Technology, Degree of Master, Korea.

15

Lee, S.Y., Do, J.N., Nam, M.S., Lee, B.J., Park, Y.H., Kim, N.Y., and Lee, Y.I. (2018), "Maintenance of Highway Reinforced Earth Retaining Walls", Geotechnical Engineering, Vol.34, No.5, pp.19-33.

16

Ministry of Environment. (2015), "Research on Ways to Expand Recycled Soil Recycling."

17

Ministry of Land, Infrastructure. (2021), "Quality Specification of Recycling Soil."

18

Ministry of Land, Transport and Maritime Affairs. (2012), "RD-12-E6-020 Retaining Wall."

19

No, S.H. (2017), "3D Printing & Introduction to Modeling Use", Mechapia.

10.1201/9781315382500-1
20

Paeng, J.Y. (2022), "Establishment of Optimum Design and Quality Control of Geocell based on 3D Printing Technique and Image Analysis System", Korea National University of Transportation, Degree of Master, Korea.

21

Won, M.S., Langcuyan, C.P., Choi, J.H., and Ha, Y.S. (2020), "A Case Study on the Reinforcement of Existing Damaged Geogrid Reinforced Soil Wall Using Numerical Analyses", Journal of the Korean Geosynthetics Society, Vol.19, No.1, pp.75-82.

22

Yoo, C.S., Jung, H.S., Jeon, S.S., Lee, B.W., Kim, K.Y., and Jeon, H.Y. (2005), "Failure Mechanism of Geosyntehtic Reinforced Segmental Retaining Wall in Tiered Configuration Using Reduced-scale Model Tests", Journal of the Korean Geotechnical Society, Vol.21, No.3, pp.65-77.

23

Yoo, C.S., Kim, S.B., and Han, J.Y. (2008), "Numerical Investigation on the Stability of Reinforced Earth Wall during Rainfall", Journal of the Korean Geotechnical Society, Vol.24, No.12, pp.23-32.

24

Yoon, Y.H., Kim, T.H., Kim, T.O., and Woo, M.S. (2023), "Proposal of Mobilized Passive Earth Pressure to Allowable Wall Displacement and Movement Types in Sandy Soil", Journal of the Korean Geotechnical Society, Vol.39, No.7, pp.5-15.

10.7843/kgs.2016.32.7.5
Information
  • Publisher :The Korean Geotechnical Society
  • Publisher(Ko) :한국지반공학회
  • Journal Title :Journal of the Korean Geotechnical Society
  • Journal Title(Ko) :한국지반공학회 논문집
  • Volume : 40
  • No :2
  • Pages :81-93
  • Received Date : 2024-03-25
  • Revised Date : 2024-04-03
  • Accepted Date : 2024-04-04
  • DOI :https://doi.org/10.7843/kgs.2024.40.2.81
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