Response of vertically-loaded pile in spatially-variable cement-treated soil

Tianyue Wu; Zhaohua Sun; Wanxia Tan; Cauderty Munashe Kasu; Jian Gong

doi:10.1371/journal.pone.0266975

Response of vertically-loaded pile in spatially-variable cement-treated soil

PLoS One. 2022 Apr 13;17(4):e0266975. doi: 10.1371/journal.pone.0266975. eCollection 2022.

Authors

Tianyue Wu¹, Zhaohua Sun^{1

2

3}, Wanxia Tan¹, Cauderty Munashe Kasu¹, Jian Gong⁴

Affiliations

¹ School of Transportation and Civil Engineering, Nantong University, Nantong, China.
² Jiangsu Zhongnan Construction Industry Group Company Limited, Haimen, China.
³ College of Transportation Science & Engineering, Nanjing Tech University, Nanjing, China.
⁴ Guangxi Key Laboratory of Disaster Prevention and Engineering Safety, Guangxi University, Nanning, China.

Abstract

Despite the extensive application prospects of piles in cement-treated soil, few studies have explored the ultimate bearing capacity especially in consideration of the spatial variability of cement-treated soil. This study examines the performance of driven piles which were installed inside the cement-treated ground, considering the inherent spatial variability of the cemented soil and the positioning error during piles installation through finite element analyses. The deterministic and random finite element analysis results have shown that the shaft resistance mainly provided the ultimate bearing resistance of piles in cement-treated soil. The spatial variability reduced the global performance of pile installed through a cement-treated soil. The ultimate bearing resistance of the pile inserted in cement-treated soil was controlled by drained condition. Drained ultimate bearing resistance should be used to determine the design working compression load of pile in cement-treated soil.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Biochemical Phenomena*
Finite Element Analysis
Pressure
Soil*

Substances

Soil

Grants and funding

This research was funded by Postgraduate Research & Practice Innovation Program of Jiangsu Province (KYCX21_3091), Systematic Project of Guangxi Key Laboratory of Disaster Prevention and Engineering Safety (2021ZDK015), Shandong Provincial Natural Science Foundation (ZR202102240826), Science and Technology Project of the Ministry of Housing and Urban-Rural Development of China (2019-K-010) and National Training Program of Innovation and Entrepreneurship for Undergraduates (202110304046Z).