LABORATORY STRAIN-HOLDING TESTS OF SET-UP OF JACKED-IN PILES IN SAND

Guo Jinjun; Shi Jianyong

doi:10.13204/j.gyjz200907018

Volume 39 Issue 7

Dec. 2014

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Guo Jinjun, Shi Jianyong. LABORATORY STRAIN-HOLDING TESTS OF SET-UP OF JACKED-IN PILES IN SAND[J]. INDUSTRIAL CONSTRUCTION, 2009, 39(7): 61-66. doi: 10.13204/j.gyjz200907018

Citation:

Guo Jinjun, Shi Jianyong. LABORATORY STRAIN-HOLDING TESTS OF SET-UP OF JACKED-IN PILES IN SAND[J]. INDUSTRIAL CONSTRUCTION, 2009, 39(7): 61-66. doi: 10.13204/j.gyjz200907018

Guo Jinjun, Shi Jianyong. LABORATORY STRAIN-HOLDING TESTS OF SET-UP OF JACKED-IN PILES IN SAND[J]. INDUSTRIAL CONSTRUCTION, 2009, 39(7): 61-66. doi: 10.13204/j.gyjz200907018

Citation:

Guo Jinjun, Shi Jianyong. LABORATORY STRAIN-HOLDING TESTS OF SET-UP OF JACKED-IN PILES IN SAND[J]. INDUSTRIAL CONSTRUCTION, 2009, 39(7): 61-66. doi: 10.13204/j.gyjz200907018

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LABORATORY STRAIN-HOLDING TESTS OF SET-UP OF JACKED-IN PILES IN SAND

doi: 10.13204/j.gyjz200907018

Guo Jinjun¹,
Shi Jianyong²

1.
1. Luoyang Institute of Science and Technology,Luoyang 471023,China;
2.
2. Geotechnical Research Institute of Hohai University,Nanjing 210098,China

Received Date: 2009-01-15
Publish Date: 2009-07-20

Abstract

Abstract

It is well-established that the shaft capacity of piles jacked-in increases with time.In clays,this behaviour arises predominantly from the dissipation of positive excess pore pressures.In sands,this increase in the absence of pore pressure dissipation can't be attributed to the aforementioned mechanisms.A series of triaxial strain-holding tests are conducted,and a hypothesis is proposed to explain pile set-up in sand that an increase in radial stress due to restrained creep dilation of the soil close to the pile shaft causes an increase in shaft resistance.
- sand,
- bearing capacity of jacked-in pile,
- pile set-up,
- strain-holding tests

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References(12)

References

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