Fig. 1. Plan of test piles and boreholes
Fig. 2. Soil profiles
Fig. 3. N value profile
Fig. 4. Plan of test and reaction piles
Fig. 5. Dimensions of test piles
Fig. 6. Contruction procedure of SDA method (Jo, 2006)
Fig. 7. Splice of reaction pile and tension steel
Fig. 8. Load vs. displacement curves of static load test
Fig. 9. Load vs. displacement curves of tip-transformed PHC piles
Fig. 10. Axial load distribution of tip-transformed PHC piles
Fig. 11. Comparision of end bearing resistance
Fig. 12. Load vs. displacement curves of the grouted end piles
Fig. 13. Estimation of end bearing resistance using PDA(EOID)
Table 1. Geotechnical profile of the test site
Table 2. Field test results
Table 3. Plan of field test for tip-transformed PHC piles
Table 5. Estimations of ultimate bearing capacity for the tip-transformed PHC piles
Table 4. Estimation of ultimate bearing capacities by numerical analysis
참고문헌
- Baekkyung G&C Corp. (2017), Report of PHC piles for various end bearing types and splices, Dynamic test report, FR-PDABK20170623- A02, 2017. 08., pp.1-697 (in Korean).
- Choi, Y. K. (2017), Report of static pile load test including load distribution test for the axial load behavior with various end bearing type PHC piles, KGS, Report No. KGS09-038, 2017. 9., pp.1-51 (in Korean).
- Choi, Y. K., Kwon, O. K., Lee, W. J., and Yeo, K. K. (2017), Report for axial compressive load behavior of PHC piles with various end bearing types, KGS, Report No. KGS09-038, 2017. 9., pp.1-160 (in Korean).
- Cheon, B. S., Yoo, C. S., and Lee, W. J. (2009), Pile load test for EXT-PHC pile field application, KGS, Report No. KGS09-038, pp.1-71 (in Korean).
- Jeong, S. S., Kim, S. I., and Kim, H. T. (2011), Installation and design guide for EXT-PHC pile (Final report), KGS, Report No. KGS09-038, 2011. 1., pp.1-71 (in Korean).
- Jo, C. H. (2006), Bored pile method, ENG Book (in Korean).
- KICT (2012), Behavior and application of tip-extension PHC pile (in Korean).
- Kim, M. H. (2018a), Safe installation method project for extension plate PHC piles and bolt spliced PHC piles (Final report), Inje IACF, 2018. 9., pp.1-341 (in Korean).
- Kim. M. H. (2018b), Safe installation method project for extension plate PHC piles and bolt spliced PHC piles (Final report) Appendix, Inje IACF, 2018. 9., pp.A-1-1-A-13-48 (in Korean).
- Korea Land & Housing Corp. (2017a), LH Special specification 23023 Precast pile foundation (The Bored Pile), pp.1-13.
- Korea Land & Housing Corp. (2017b), LH Special specification 23021 Precast pile foundation (The Driven Pile), pp.1-13.
- Paek, K. H. (2013), End bearing capacity increase technology for the bored pile using Smartpile, Architectural structure, 2013. 9.10, Vol.20, No.5, pp.72-78 (in Korean).
- Professional Engineer's office Veesang (2017), Geotechnical investigation report for PHC piles with various end bearing types, 2017. 3 (in Korean).
- Yonsei Univ. (2009), Behavior characteristics of no-welding composite PHC piles through pile load test and numerical analysis, SampyoENC (in Korean).