Centrifuge modelling of rock-socketed drilled shafts under uplift load
— the UWA Profiles and Research Repository Skip to main navigation Skip to search Skip to main content the UWA Profiles and Research Repository Home Help & FAQ Home Profiles Organisations Research output Grants Datasets Prizes / Awards Engagement / Activities Press / Media Units Equipment Impacts Search by expertise, name or affiliation Centrifuge modelling of rock-socketed drilled shafts under uplift load Sunji Park, Jae Hyun Kim, Seok Jung Kim, Jae Hyun Park, Ki Seok Kwak, Dong Soo Kim Oceans Graduate School Research output: Contribution to journal › Article Overview Fingerprint Abstract Rock-socketed drilled shafts are widely used to transfer the heavy loads from the superstructure especially in mountainous area. Extensive research has been done on the behavior of rock-socketed drilled shafts under compressive load. However, little attention has been paid to uplift behavior of drilled shaft in rock, which govern the overall behavior of the foundation system. In this paper, a series of centrifuge tests have been performed to investigate the uplift response of rocksocketed drilled shafts. The pull-out tests of drilled shafts installed in layered rocks having various strengths were conducted. The load-displacement response, axial load distributions in the shaft and the unit skin friction distribution under pull-out loads were investigated. The effects of the strength of rock socket on the initial stiffness, ultimate capacity and mobilization of friction of the foundation, were also examined. The results indicated that characteristics of rock-socket has a significant influence on the uplift behavior of drilled shaft. Most of the applied uplift load were carried by socketed rock when the drilled shaft was installed in the sand over rock layer, whereas substantial load was carried by both upper and lower rock layers when the drilled shaft was completely socketed into layered rock. The pattern of mobilized shaft friction and point where the maximum unit shaft friction occurred were also found to be affected by the socket condition surrounding the drilled shaft. Original language English Pages (from-to) 431-441 Number of pages 11 Journal Geomechanics and Engineering Volume 24 Issue number 5 DOIs https://doi.org/10.12989/gae.2021.24.5.431 Publication status Published - 2021 Access to Document 10.12989/gae.2021.24.5.431 Link to publication in Scopus Fingerprint Dive into the research topics of 'Centrifuge modelling of rock-socketed drilled shafts under uplift load'. Together they form a unique fingerprint. centrifugal model test Earth & Environmental Sciences 100% Centrifuges Engineering & Materials Science 86% shaft Earth & Environmental Sciences 71% Rocks Engineering & Materials Science 61% uplift Earth & Environmental Sciences 58% rock Earth & Environmental Sciences 35% friction Earth & Environmental Sciences 19% Friction Engineering & Materials Science 15% View full fingerprint Cite this APA Author BIBTEX Harvard Standard RIS Vancouver Park, S., Kim, J. H., Kim, S. J., Park, J. H., Kwak, K. S., & Kim, D. S. (2021). Centrifuge modelling of rock-socketed drilled shafts under uplift load. Geomechanics and Engineering, 24(5), 431-441. https://doi.org/10.12989/gae.2021.24.5.431 Park, Sunji ; Kim, Jae Hyun ; Kim, Seok Jung ; Park, Jae Hyun ; Kwak, Ki Seok ; Kim, Dong Soo. / Centrifuge modelling of rock-socketed drilled shafts under uplift load. In: Geomechanics and Engineering. 2021 ; Vol. 24, No. 5. pp. 431-441. @article{cdfeffd59bd545bf89a60589e47951a3, title = "Centrifuge modelling of rock-socketed drilled shafts under uplift load", abstract = "Rock-socketed drilled shafts are widely used to transfer the heavy loads from the superstructure especially in mountainous area. Extensive research has been done on the behavior of rock-socketed drilled shafts under compressive load. However, little attention has been paid to uplift behavior of drilled shaft in rock, which govern the overall behavior of the foundation system. In this paper, a series of centrifuge tests have been performed to investigate the uplift response of rocksocketed drilled shafts. The pull-out tests of drilled shafts installed in layered rocks having various strengths were conducted. The load-displacement response, axial load distributions in the shaft and the unit skin friction distribution under pull-out loads were investigated. The effects of the strength of rock socket on the initial stiffness, ultimate capacity and mobilization of friction of the foundation, were also examined. The results indicated that characteristics of rock-socket has a significant influence on the uplift behavior of drilled shaft. Most of the applied uplift load were carried by socketed rock when the drilled shaft was installed in the sand over rock layer, whereas substantial load was carried by both upper and lower rock layers when the drilled shaft was completely socketed into layered rock. The pattern of mobilized shaft friction and point where the maximum unit shaft friction occurred were also found to be affected by the socket condition surrounding the drilled shaft.", keywords = "Centrifuge modelling, Rock, Rock-socketed drilled shaft, Uplift behavior", author = "Sunji Park and Kim, {Jae Hyun} and Kim, {Seok Jung} and Park, {Jae Hyun} and Kwak, {Ki Seok} and Kim, {Dong Soo}", year = "2021", doi = "10.12989/gae.2021.24.5.431", language = "English", volume = "24", pages = "431--441", journal = "Geomechanics and Engineering", issn = "2005-307X", publisher = "Techno-Press", number = "5", } Park, S, Kim, JH, Kim, SJ, Park, JH, Kwak, KS & Kim, DS 2021, 'Centrifuge modelling of rock-socketed drilled shafts under uplift load', Geomechanics and Engineering, vol. 24, no. 5, pp. 431-441. https://doi.org/10.12989/gae.2021.24.5.431 Centrifuge modelling of rock-socketed drilled shafts under uplift load. / Park, Sunji; Kim, Jae Hyun; Kim, Seok Jung; Park, Jae Hyun; Kwak, Ki Seok; Kim, Dong Soo. In: Geomechanics and Engineering, Vol. 24, No. 5, 2021, p. 431-441. Research output: Contribution to journal › Article TY - JOUR T1 - Centrifuge modelling of rock-socketed drilled shafts under uplift load AU - Park, Sunji AU - Kim, Jae Hyun AU - Kim, Seok Jung AU - Park, Jae Hyun AU - Kwak, Ki Seok AU - Kim, Dong Soo PY - 2021 Y1 - 2021 N2 - Rock-socketed drilled shafts are widely used to transfer the heavy loads from the superstructure especially in mountainous area. Extensive research has been done on the behavior of rock-socketed drilled shafts under compressive load. However, little attention has been paid to uplift behavior of drilled shaft in rock, which govern the overall behavior of the foundation system. In this paper, a series of centrifuge tests have been performed to investigate the uplift response of rocksocketed drilled shafts. The pull-out tests of drilled shafts installed in layered rocks having various strengths were conducted. The load-displacement response, axial load distributions in the shaft and the unit skin friction distribution under pull-out loads were investigated. The effects of the strength of rock socket on the initial stiffness, ultimate capacity and mobilization of friction of the foundation, were also examined. The results indicated that characteristics of rock-socket has a significant influence on the uplift behavior of drilled shaft. Most of the applied uplift load were carried by socketed rock when the drilled shaft was installed in the sand over rock layer, whereas substantial load was carried by both upper and lower rock layers when the drilled shaft was completely socketed into layered rock. The pattern of mobilized shaft friction and point where the maximum unit shaft friction occurred were also found to be affected by the socket condition surrounding the drilled shaft. AB - Rock-socketed drilled shafts are widely used to transfer the heavy loads from the superstructure especially in mountainous area. Extensive research has been done on the behavior of rock-socketed drilled shafts under compressive load. However, little attention has been paid to uplift behavior of drilled shaft in rock, which govern the overall behavior of the foundation system. In this paper, a series of centrifuge tests have been performed to investigate the uplift response of rocksocketed drilled shafts. The pull-out tests of drilled shafts installed in layered rocks having various strengths were conducted. The load-displacement response, axial load distributions in the shaft and the unit skin friction distribution under pull-out loads were investigated. The effects of the strength of rock socket on the initial stiffness, ultimate capacity and mobilization of friction of the foundation, were also examined. The results indicated that characteristics of rock-socket has a significant influence on the uplift behavior of drilled shaft. Most of the applied uplift load were carried by socketed rock when the drilled shaft was installed in the sand over rock layer, whereas substantial load was carried by both upper and lower rock layers when the drilled shaft was completely socketed into layered rock. The pattern of mobilized shaft friction and point where the maximum unit shaft friction occurred were also found to be affected by the socket condition surrounding the drilled shaft. KW - Centrifuge modelling KW - Rock KW - Rock-socketed drilled shaft KW - Uplift behavior UR - http://www.scopus.com/inward/record.url?scp=85105401954&partnerID=8YFLogxK U2 - 10.12989/gae.2021.24.5.431 DO - 10.12989/gae.2021.24.5.431 M3 - Article AN - SCOPUS:85105401954 VL - 24 SP - 431 EP - 441 JO - Geomechanics and Engineering JF - Geomechanics and Engineering SN - 2005-307X IS - 5 ER - Park S, Kim JH, Kim SJ, Park JH, Kwak KS, Kim DS. Centrifuge modelling of rock-socketed drilled shafts under uplift load. Geomechanics and Engineering. 2021;24(5):431-441. https://doi.org/10.12989/gae.2021.24.5.431 Powered by Pure, Scopus & Elsevier Fingerprint Engine™ © 2021 Elsevier B.V. We use cookies to help provide and enhance our service and tailor content. By continuing you agree to the use of cookies Log in to Pure About web accessibility Contact us
