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Open AccessArticle
Sensitivity Analysis of the Factors Affecting the Ground Heave Caused by Jet Grouting
by
Dashuo Chen
Dashuo Chen 1,2,
Yuedong Wu
Yuedong Wu 1,2,*,
Jian Liu
Jian Liu 1,3
,
Huiguo Wu
Huiguo Wu 1,2,4 and
Yongyang Zhu
Yongyang Zhu 1,2
1
Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing 210098, China
2
Geotechnical Engineering Research Center of Jiangsu Province, Nanjing 210098, China
3
Engineering Research Center of Dredging Technology of Ministry of Education, Hohai University, Changzhou 213000, China
4
College of Artificial Intelligence and Automation, Hohai University, Changzhou 213000, China
*
Author to whom correspondence should be addressed.
Buildings 2024, 14(9), 2610; https://doi.org/10.3390/buildings14092610 (registering DOI)
Submission received: 1 July 2024
/
Revised: 13 August 2024
/
Accepted: 22 August 2024
/
Published: 23 August 2024
Abstract
Jet grouted piles are widely used to reduce post-construction settlement of soft clay roadbeds. Nevertheless, it is easy to cause ground heave due to the jet grouted pile. According to the analytical method and numerical method, a sensitivity analysis of the factors affecting ground heave caused by a single jet grouted pile was performed. It is found that the influence of each parameter on ground heave is in the following order: grout pump pressure > embankment load > soil type (including the cohesion, friction angle, and Young’s modulus) > pile diameter > pile length. Considering the effect of the pump pressure on the ground heave is more significant, based on the analytical method of ground heave caused by a single jet grouted pile combined with the solution of small-deflection bending of a circular thin plate, the calculation method for the suggested limit grout pressure for construction under different embankment heights was established. Suggested values of theoretical grout pump pressure were given to prevent ground heave from harming the pavement of operating highways. This study provides some theoretical basis for the subsequent research on the jet grouted pile.
Share and Cite
MDPI and ACS Style
Chen, D.; Wu, Y.; Liu, J.; Wu, H.; Zhu, Y.
Sensitivity Analysis of the Factors Affecting the Ground Heave Caused by Jet Grouting. Buildings 2024, 14, 2610.
https://doi.org/10.3390/buildings14092610
AMA Style
Chen D, Wu Y, Liu J, Wu H, Zhu Y.
Sensitivity Analysis of the Factors Affecting the Ground Heave Caused by Jet Grouting. Buildings. 2024; 14(9):2610.
https://doi.org/10.3390/buildings14092610
Chicago/Turabian Style
Chen, Dashuo, Yuedong Wu, Jian Liu, Huiguo Wu, and Yongyang Zhu.
2024. "Sensitivity Analysis of the Factors Affecting the Ground Heave Caused by Jet Grouting" Buildings 14, no. 9: 2610.
https://doi.org/10.3390/buildings14092610
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