Investigation of Ground Heave due to Jet Grouting in Soft Clay

Wu, Yenan; Diao, Hongguo; Ng, Charles Wang Wai; Liu, Jian; Zeng, Chui-chang

doi:10.1061/(asce)cf.1943-5509.0000910

Cited by 11 publications

(2 citation statements)

References 7 publications

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“…Based on cavity expansion theory, Wu et al (2016) proposed an analytical method to study the response of a ground surface subjected to a single jet grouted pile as follows: …”

Section: Relationship Between Ground Heave and Distance From The Pilementioning

confidence: 99%

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Field studies of a technique to mitigate ground settlement of operating highways

Diao

Liu

et al. 2016

J. Zhejiang Univ. Sci. A

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Abstract:In the eastern coastal region of China, many operating highways built over soft ground are vulnerable to severe post-construction settlement. In this study, a technique using jet grouted piles is developed to mitigate post-construction settlement. The piles are installed by drilling boreholes throughout the embankment. The principal stages of the construction process are described, and two field tests in China, on the Lianyan and Linhai highways, are presented. The results revealed that ground heaves of up to 219 mm and 337 mm induced during a short construction period were able to mitigate the settlement of the embankment. The average settling rate was significantly reduced from 60 mm/y to 9 mm/y on the Lianyan highway. Lateral ground displacement on the Linhai highway increased with time during construction, but after construction showed a slight reduction associated with the dissipation of excess pore water pressure. An analytical method was adopted to describe the ground heave due to the jet grouted piles. The ground heave increased with grout pump pressure, but decreased as the embankment load and distance from the pile center increased.

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“…Based on cavity expansion theory, Wu et al (2016) proposed an analytical method to study the response of a ground surface subjected to a single jet grouted pile as follows: …”

Section: Relationship Between Ground Heave and Distance From The Pilementioning

confidence: 99%

“…Both cases were instrumented and measured to investigate the performance of the embankment. A theoretical method proposed by Wu et al (2016) was also adopted to analyze the short-term heave due to jet grouting.…”

Section: Introductionmentioning

confidence: 99%