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http://dx.doi.org/10.7843/kgs.2022.38.11.97

A Study on Non-contact Penetration and Rebound Measurement Device for Quality Control in Driven Piles  

Seo, Seunghwan (Korea Institute of Civil Engr. and Building Tech.)
Kim, Juhyong (Korea Institute of Civil Engr. and Building Tech.)
Choi, Changho (Korea Institute of Civil Engr. and Building Tech.)
Chung, Moonkyung (Korea Institute of Civil Engr. and Building Tech.)
Publication Information
Journal of the Korean Geotechnical Society / v.38, no.11, 2022 , pp. 97-106 More about this Journal
Abstract
The domestic auger-drilled pile method generally manages the driving penetration (set) value with the final stage of construction. The penetration value has been estimated by manual measurement for a long time. The automation technology is yet to be applied due to workability and high-cost limitations, despite safety issues and lack of reliability in measured results. In this study, a non-contact pile penetration measurement device was developed. Further, the field performance was verified by comparing the measurements with a conventional automation device. In addition, the on-site field quality control method was analyzed using the penetration measuring device. The field experiments confirmed that more reliable bearing capacity estimation could calculate the dynamic damping coefficient and the modified Hiley formula with the developed device. Furthermore, it can be used for pile construction management from the bearing capacity viewpoint, even for piles not subjected to dynamic load tests. 
Keywords
Dynamic load test; Modified Hiley formula; Non-contact device; Pile driving; Set and rebound value;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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