Shaft resistance characteristics of steel pipe prebored and precast piles based on field loading tests

Sangseom Jeong, D. Kim, J. Park

Research output: Contribution to conferencePaper

Abstract

Prebored and precast piles (here and after, PPP) are being frequently used for various structures to reduce nuisance caused by vibration and noise, substituting driven piles. In PPP design, skin friction is the most critical factor affecting bearing capacity and settlement behavior. Main focus of this paper is set to establish an analysis model considering the interface behavior at the pile-cement milk-surrounding soil interface during the installation and in-use of PPP. A case of single pile was analyzed through a three-dimensional finite element approach and field load tests. In the analysis, t-z curve allowing a slip along the interfaces were proposed, designed with a certain length of slip for each soil layers. A series of numerical analysis on the interface of pile-cement milk-soil was conducted based on a proposed t-z curve. It is shown that the complex elements around the pile increases the skin friction to some extent and reduces the pile settlement.

Original languageEnglish
Publication statusPublished - 2020 Jan 1
Event16th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, ARC 2019 - Taipei, Taiwan, Province of China
Duration: 2019 Oct 142019 Oct 18

Conference

Conference16th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, ARC 2019
CountryTaiwan, Province of China
CityTaipei
Period19/10/1419/10/18

All Science Journal Classification (ASJC) codes

  • Geotechnical Engineering and Engineering Geology

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    Jeong, S., Kim, D., & Park, J. (2020). Shaft resistance characteristics of steel pipe prebored and precast piles based on field loading tests. Paper presented at 16th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering, ARC 2019, Taipei, Taiwan, Province of China.