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http://dx.doi.org/10.7843/kgs.2018.34.12.115

Study on the Applicability of Dynamic Pile Load Test to Check Integrity during Installation of Extension Plate Attached PHC Piles and Bolts Spliced PHC Piles and the Correct Proof Test of the Transformed-installation PHC Piles  

Kim, Myunghak (Dept. of Civil & Urban Engrg., Inje Univ.)
Choi, Yongkyu (Dept. of Civil, Environmental and Urban Engrg., Kyungsung Univ.)
Publication Information
Journal of the Korean Geotechnical Society / v.34, no.12, 2018 , pp. 115-131 More about this Journal
Abstract
Extension plate attached PHC piles and bolts spliced PHC piles were installed in field test site. Pile integrities were checked during installation with dynamic pile test and the actual pile conditions after installation were compared with integrity index (${\beta}$ index) by PDA test. Theoretically the break in near pile end or pile end (especially extension plate itself) was very difficult to access by integrity index (${\beta}$ index) and also require a high level of knowledge and field experience on PDA test. First actual wave equation of bolts spliced PHC piles due to bolts spliced equipment can be different with welding spliced. Second wave length of the stress wave from installing can be longer than the height of bolts spliced equipment (about 100 mm). Third Beta processing in PDA analysis function is very difficult to access without a high level of knowledge and field experience on wave equation. Above-mentioned three reasons can make conclusion that traditional PDA test in domestic site can not access the integrity of bolts spliced equipment in bolts spliced PHC piles.
Keywords
Extension plate attached PHC pile; Bolts spliced PHC pile; Pile integrity during installation; Dynamic pile load test; Integrity index (${\beta}$ Index); Wave equation; Access pile integrity; Bolts spliced equipment;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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