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2026 Vol.42, Issue 4 Preview Page
An Experimental Study on the Shear Characteristics of Secant Cast-In-Place Concrete Pile Walls

실대형 겹침 CIP 벽체의 전단 특성에 관한 실험적 연구

Yu-Seok Shin1
,
Woong-Sub Jung2
,
Kang-Il Lee3*
신 유석1
,
정 웅섭2
,
이 강일3*
1Member, Ph.D. Candidate, Dept, of Civil Engineering and Environment Engineering, Daejin Univ.
2Member, Ph.D. Student, Dept, of Civil Engineering and Environment Engineering, Daejin Univ.
3Member, Prof., Dept. of Civil Engineering, Daejin Univ.
1정회원, 대진대학교 토목환경공학과 박사과정
2정회원, 대진대학교 토목환경공학과 박사과정
3정회원, 대진대학교 스마트건설환경공학과 교수
*Corresponding Author
31 August 2026. pp. 103-116
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Abstract

Secant cast-in-place (SCIP) walls used in practice are broadly classified into Case 1 (P–R–P configuration), which provides greater structural stiffness, and Case 2 (P–P–R–P–P configuration), which maximizes economic efficiency and minimizes permeability under compression-dominant conditions. To investigate the mechanical behavior of SCIP walls, this study conducted unit-element tests (compressive strength, elastic modulus, and permeability coefficient) and full-scale shear tests. The test results demonstrated that the basic material properties of the concrete exceeded the design requirements, while the permeability coefficient remained within the allowable limit for conventional retaining walls, thereby verifying its stable low permeability. The analysis of the load–displacement response in the full-scale shear tests revealed that both specimens exhibited stable ductile behavior even after reaching the peak load, an effect attributed to the embedded steel H-beams. The load–strain responses showed localized strain variations associated with crack propagation. Furthermore, while Cases 1 and 2 exhibited distinct stress transfer paths in the shear stress–load relationship because of differences in span length and failure modes, the analysis of the shear stress direction angles confirmed that both specimens demonstrated similar behavioral characteristics driven by crack propagation at the joints and subsequent stress redistribution.

Keywords
Crack propagation patterns
Permeability
Full-scale test
SCIP
Shear behavior

현장에 적용되는 SCIP 벽체는 강성 확보에 유리한 Case-1(P-R-P 형식)과 압축력이 지배적인 조건에서 경제성 및 차수성을 극대화하는 Case-2(P-P-R-P-P 형식)로 대별된다. 본 연구는 SCIP 벽체의 역학적 거동 규명을 목적으로 단위요소시험(압축강도, 탄성계수, 투수계수) 및 실대형 전단실험을 수행하였다. 시험 결과, 콘크리트의 기초 물성은 설계 기준을 상회하였으며 투수계수 또한 흙막이 벽체 허용 기준치를 충족하여 안정적인 차수 성능을 검증하였다. 실대형 전단실험의 하중-변위 거동 분석 결과는 매립된 H형강의 영향으로 두 실험체 모두 최대 하중 이후 안정적인 연성 거동을 발현하였으며 하중-변형률 관계에서는 균열 진전 양상에 기인한 국소적 변형률 차이가 확인되었다. 한편, Case-1과 Case-2는 지간 거리 및 파괴 양상의 차이로 인해 전단응력-하중 관계에서 상이한 응력 전달 경로를 보였으나, 전단응력 방향각 분석에서는 접합부 균열 진전 및 응력 재분배에 의해 두 실험체가 유사한 거동 특성을 나타냄을 확인하였다.

References
1

Altuntas, C., Persaud, D., and Poeppel, A. R. (2009), “Secant Pile Wall Design and Construction in Manhattan, New York”, Proceedings of the International Foundation Congress and Equipment Expo (IFCEE 2009), ASCE, Reston, VA, pp.105-112.

10.1061/41023(337)14
2

Cho, Y. J., Lee, S. H., and Hwang, B. S. (2019), “Research and Development of the Advanced RF-CIP(Re Form-Cast In Place Pile) Method”, Korean Geotechnical Society, KGS19-269, pp.7-49.

3

CIRIA C760 (2017), “Guidance on Embedded Retaining Wall Design”, Griffin Court, 15 Long Lane, London, EC1A 9PN, https://www.ciria.org/.

4

Finno, R. J. and Bryson, L. S. (2002), “Response of Building Adjacent to Stiff Excavation Support System in Soft Clay”, Journal of Performance of Constructed Facilities, Vol.16, No.1, pp.10-20.

10.1061/(ASCE)0887-3828(2002)16:1(10)
5

Gannon, J. (2016), “Primary Firm Secant Pile Concrete Specification”, Proceedings of the Institution of Civil Engineers – Geotechnical Engineering, Vol.169, No.2, pp.110-120.

10.1680/jgeen.15.00038
6

Hu, Q., Chen, Y., Ke, H., Chen, R. P., and Yang, H. (2008), “Analysis of Bearing and Deforming Behavior of Secant Piles of Deep Foundation Pit Excavation”, Rock and Soil Mechanics, Vol.29, No.8, pp.2144-2148.

7

Hussein, A. K., Mahmood, M. R., and Aswad, M. F. (2025), “The Behavior of Secant Pile Wall Embedded within Soil by Numerical Analysis”, Engineering and Technology Journal, Vol.43, No.5, pp.297-307.

8

Kim, W. H., Shin, Y. S., Lee, Y. J., Chang, Y. C., and Lee, K. I. (2023), “A Study on the Characteristics of Member Force, Horizontal Displacement and Concrete Strength by Design Elements of SPW Retaining Walls”, Journal of the Korean Geosynthetics Society, Vol.22, No.1, pp.75-85.

10.12814/JKGSS.2023.22.1.075
9

Liao, S. M., Li, W. L., Fan, Y. Y., Sun, X., and Shi, Z. H. (2014), “Model Test on Lateral Loading Performance of Secant Pile Walls”, Journal of Performance of Constructed Facilities, Vol.28, No.2, pp.391-401.

10.1061/(ASCE)CF.1943-5509.0000374
10

Liao, S. M., Zhou, X. L., and Sun, X. (2009), “Experimental Study on the Lateral Loading Behavior of Secant Boring Pile”, Proceedings of Selected Sessions of the 2009 International Foundation Congress and Equipment Expo (ASCE), pp.600-607.

10.1061/41022(336)77
11

Puller, M. (2003), “Deep Excavations – A Practical Manual”, Thomas Telford Publishing, pp.97-145.

12

Rutherford, C. J., Biscontin, G., Koutsoftas, D., and Briaud, J. L. (2007), “Design Process of Deep Soil Mixed Walls for Excavation Support”, International Journal of Geoengineering Case Histories, Vol.1, No.2, pp.56-72.

10.1061/40803(187)250
13

Shin, Y. S., Park, J. M., Kim, B. S., Oh, J. W., and Lee, K. I. (2024), “Cost Comparison of Overlap C.I.P Method with Steel Guide Blocks and Conventional C.I.P Method”, 2024 Spring Geosynthetics Conference, Korean Geosynthetics Society, pp.107-108.

14

Yoon, T. K., Shin, Y. S., Choi, S. W., and Lee, K. I. (2022), “A Study on the Improvement of the Waterproof Method Overlapping CIP Method Using Steel Guide Blocks”, 2022 Spring Geosynthetics Conference, Korean Geosynthetics Society, pp.49-50.

Information
  • Publisher :The Korean Geotechnical Society
  • Publisher(Ko) :한국지반공학회
  • Journal Title :Journal of the Korean Geotechnical Society
  • Journal Title(Ko) :한국지반공학회 논문집
  • Volume : 42
  • No :4
  • Pages :103-116
  • Received Date : 2026-06-26
  • Revised Date : 2026-08-05
  • Accepted Date : 2026-08-06
  • DOI :https://doi.org/10.7843/kgs.2026.42.4.103
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