A Field Study of Soil Plugging of Jacked Pile and Its Effect on the Pile Resistance

Zhong Chen, Peng Ji (), Qian Zhai, Minjie Li, Zhipeng Zheng and Tianlun Shen
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Zhong Chen: East China Mineral Exploration and Development Bureau for Non-Ferrous, Nanjing 210007, China
Peng Ji: School of Civil Engineering, Southeast University, Nanjing 211189, China
Qian Zhai: School of Civil Engineering, Southeast University, Nanjing 211189, China
Minjie Li: Nantong Keneng Monitoring Technology Co., Ltd., Nantong 226000, China
Zhipeng Zheng: School of Civil Engineering, Southeast University, Nanjing 211189, China
Tianlun Shen: School of Civil Engineering, Southeast University, Nanjing 211189, China

Sustainability, 2022, vol. 14, issue 24, 1-10

Abstract: Both a static pile load test and cone penetration test were conducted in a field to investigate the effect of soil plugging on the ultimate bearing capacity of a pile. Both the force equilibrium method and Terzaghi’s method were adopted for the theoretical analysis of the soil plugging effect during the pile setting process. Consequently, a new equation was proposed for the estimation of the height of soil plugging. It is observed that the process of pile settlement can be divided into three stages: (i) the soil plugging is initially formed; (ii) the soil plugging reaches its maximum height; and (iii) force equilibrium is reached with a constant soil plugging height. The proposed method in this paper provides an alternative method for the assessment of the height of soil plugging and its effect on the ultimate bearing capacity of the jacked pile.

Keywords: jacked pile; soil plug effect; CPT; remote monitoring; piling resistance (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
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