CONSOLIDATION BEHAVIOR ANALYSIS OF MULTI-LAYERED SAND DRAINS FOUNDATION WITH VARYING HORIZONTAL PERMEABILITY COEFFICIENT

Guo Biao; Gong Xiaonan; Lu Mengmeng; Li Ying

doi:10.13204/j.gyjz201004020

Volume 40 Issue 4

Dec. 2014

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Guo Biao, Gong Xiaonan, Lu Mengmeng, Li Ying. CONSOLIDATION BEHAVIOR ANALYSIS OF MULTI-LAYERED SAND DRAINS FOUNDATION WITH VARYING HORIZONTAL PERMEABILITY COEFFICIENT[J]. INDUSTRIAL CONSTRUCTION, 2010, 40(4): 88-95. doi: 10.13204/j.gyjz201004020

Citation:

Guo Biao, Gong Xiaonan, Lu Mengmeng, Li Ying. CONSOLIDATION BEHAVIOR ANALYSIS OF MULTI-LAYERED SAND DRAINS FOUNDATION WITH VARYING HORIZONTAL PERMEABILITY COEFFICIENT[J]. INDUSTRIAL CONSTRUCTION, 2010, 40(4): 88-95. doi: 10.13204/j.gyjz201004020

Citation:

Guo Biao, Gong Xiaonan, Lu Mengmeng, Li Ying. CONSOLIDATION BEHAVIOR ANALYSIS OF MULTI-LAYERED SAND DRAINS FOUNDATION WITH VARYING HORIZONTAL PERMEABILITY COEFFICIENT[J]. INDUSTRIAL CONSTRUCTION, 2010, 40(4): 88-95. doi: 10.13204/j.gyjz201004020

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CONSOLIDATION BEHAVIOR ANALYSIS OF MULTI-LAYERED SAND DRAINS FOUNDATION WITH VARYING HORIZONTAL PERMEABILITY COEFFICIENT

doi: 10.13204/j.gyjz201004020

1.
1. MOE Key Laboratory of Soft Soils and Geoenvironmental Engineering,Zhejiang University,Hangzhou 310058,China;
2.
2. State Key Laboratory for Geomechanics and Deep Underground Engineering,China University of Mining &Technology,Xuzhou 221008,China

Received Date: 2009-10-09
Publish Date: 2010-04-20

Abstract

Abstract

The consolidation of multi-layered sand drains foundation under single-drainage condition and doubledrainage condition was analyzed. Three types of variation patterns of the horizontal permeability of soil in the smear zone were considered,including the constant distribution pattern,the linear distribution pattern and the parabolic distribution pattern,and an analytical solution was obtained. The consolidation behavior of?double-layered sand drains foundation was investigated. The results show that the overall average degrees of consolidation of foundation in terms of pore pressure is equal to that in terms of strain only if compression modulus of every layer is equal to each other,otherwise the former is always larger than the later; the consolidation rate is at its maximum for the parabolic distribution pattern and is at its minimum for the constant distribution pattern whereas the?one for the linear distribution pattern is in the middle. The larger the smear zone is,the slower the consolidation rate is; the greater the disturbance magnitude is,the slower the consolidation rate is. Increasing compression modulus of any layer could accelerate the dissipation of pore pressure.
- sand drains foundation,
- consolidation,
- permeability coefficient,
- single-drainage,
- double-drainage

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References(13)

References

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