Fig. 1. Evaluation of residual load by lift-off test
Fig. 2. Load-displacement curve for cycle (Fujiwara and Sakai, 2016)
Fig. 3. Equipment diagram for lift-off test using different tensioning equipment
Fig. 4. Result of lift-off test with regard to initial load, load increment method, loading cycle
Fig. 5. Result of lift-off test using different tensioning equipment
Fig. 6. Lift-off test method proposed in this study
Table 1. Load increment, load and displacement measurement interval for lift-off test (Ground Anchor Technology Association, 1997)
Table 2. Load increment, load and displacement measurement interval for lift-off test proposed in this study
참고문헌
- British Standards Institution (1989), "British Standard Code of Practice for Ground anchorages", BS 8081.
- Civil Engineering Department Hong Kong (1997), "Model Specification for prestressed ground anchors", Geotechnical Control Office, GEOSPEC1.
- Deutshe Industrie Normen (1990), "Ground Anchorages Design, construction and testing", DIN-4125.
- Fujiwara, Y. and Sakai, T. (2016), "A Study of a Lift-off Test Method for Ground Anchors", Journal of JSCE, Vol.4, pp.106-117. https://doi.org/10.2208/journalofjsce.4.1_106
- Ground Anchor Technology Association (1997), "Design.Construction Guideline for Ground Anchor".
- Kim, N.K. (2001), "Pullout Capacity of Ground Anchors in Weathered Soil", Journal of The Korean Geotechnical Society, Vol.17, No.4, pp.231-239.
- Korea Expressway Corporation (2016), "A Survey on the Application Actual Condition and Establishment of Performance Improvement countermeasure of Permanent Anchor for Ground Reinforcement", In Korean.
- Ministry of Land, Transport and Maritime Affairs (2010), "Ground Anchor Design.Construction and Maintenance Manual", In Korean.
- Post Tensioning Institute (1996), "Recommendations for Prestressed Rock and Soil Anchors, 3rd ed", Post Tensioning Institute.
- Sabatini, P.J., Pass, D.G., and Bachus, R.C. (1999), "Geotechnical Engineering Circular NO. 4 Ground Anchors and Anchored systems", U.S Department of Transportation, FHWA-IF-99-015.
피인용 문헌
- 리프트오프 현장시험을 이용한 앵커의 안정성 평가 vol.17, pp.1, 2021, https://doi.org/10.15683/kosdi.2021.3.31.128