ANALYTICAL SOLUTION FOR THE CONSOLIDATION OF A COMPOSITE FOUNDATION CONSIDERING THE CONSTRUCTION DISTURBANCE UNDER PROGRESSIVE LOADING

Lu Mengmeng; Xie Kanghe; Li Ying; Zhang Zhiqing

doi:10.13204/j.gyjz200907017

Volume 39 Issue 7

Dec. 2014

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Article Navigation > INDUSTRIAL CONSTRUCTION > 2009 > 39(7): 56-60,73

CHEN Peixu, ZHANG Zheng, LIAO Rensheng, ASANTE Richard. Plastic Effect Analysis of Stainless Steel Frame Structures[J]. INDUSTRIAL CONSTRUCTION, 2023, 53(2): 116-121. doi: 10.13204/j.gyjzG20102301

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Lu Mengmeng, Xie Kanghe, Li Ying, Zhang Zhiqing. ANALYTICAL SOLUTION FOR THE CONSOLIDATION OF A COMPOSITE FOUNDATION CONSIDERING THE CONSTRUCTION DISTURBANCE UNDER PROGRESSIVE LOADING[J]. INDUSTRIAL CONSTRUCTION, 2009, 39(7): 56-60,73. doi: 10.13204/j.gyjz200907017

CHEN Peixu, ZHANG Zheng, LIAO Rensheng, ASANTE Richard. Plastic Effect Analysis of Stainless Steel Frame Structures[J]. INDUSTRIAL CONSTRUCTION, 2023, 53(2): 116-121. doi: 10.13204/j.gyjzG20102301

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ANALYTICAL SOLUTION FOR THE CONSOLIDATION OF A COMPOSITE FOUNDATION CONSIDERING THE CONSTRUCTION DISTURBANCE UNDER PROGRESSIVE LOADING

doi: 10.13204/j.gyjz200907017

1.
1. State Key Laboratory for Geomechanics and Deep Underground Engineering,School Architecture &Civil Engineering,China University of Mining &Technology,Xuzhou 221008,China;
2.
2. Key Laboratory of Soft Soils and Geoenvironmental Engineering of MOE,Zhejiang University,Hangzhou 310027,China;
3.
3. Zhejiang Shuren University,Hangzhou 310015,China

Received Date: 2009-01-12
Publish Date: 2009-07-20

Abstract

Abstract

Under the condition of progressive loading,considering a parabolic variation of the horizontal permeability of soil in the disturbed zone and the combination seepage along both radial direction and vertical direction in the surrounding soil,the governing equations for the consolidation of a composite foundation was derived and their solutions were obtained.On the basis of the solutions for the excess pore water pressures,the average degree of consolidation for the composite foundation was obtained.Then the consolidation behaviors of the composite foundation were analyzed and a comparison between the present solution and some previous solutions was made.The results show: the longer the loading period,the slower the rate of consolidation;the greater the disturbance effect,the slower the rate of consolidation;the rate of consolidation calculated by the present solution is more rapid than that by the previous solutions which assumed the horizontal permeability of soil in the disturbed zone was linearly changed or kept constant as a reduced value.
- consolidation,
- composite foundation,
- horizontal permeability,
- parabolic variation,
- progressive loading

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References(8)

References

[2] 王瑞春,谢康和,关山海.变荷载下散体材料桩复合地基固结解析解[J].浙江大学学报:工学版,2002,36(1):12-16;

Han J,Ye S L.ATheoretical Solutionfor Consolidation Rates of StoneColumn-Reinforced Foundations Accounting for Smear and WellResistance Effects[J].The International Journal of Geomechanics,2002,2(2):135-151;

[3] Wang XS,Jiao J J.Analysis of Soil Consolidation by Vertical Drainswith Double Porosity Model[J].International Journal for Numericaland Analytical Methodin Geomechanics,2004,28:1385-1400;

[4] Zhang Y G,Xie K H,Wang Z.Consolidation Analysis of CompositeGround Improved by Granular Columns Considering Variation ofPermeability Coefficient of Soil[J].Ground Modification and SeismicMitigation,ASCE,Geotechnical Special Publication,2006,152:135-142;

[5] Indraratna B,Redana I W.Laboratory Determination of Smear ZoneDue to Vertical Drain Installation[J].Journal of Geotechnical andGeoenvironmental Engineering,1998,124(2):180-184;

[6] Onoue A,Ting N H,Germaine J T,et al.Permeability of DisturbedZone Around Vertical Drains[J].Proc.,Geotechnical EngineeringCongress,Boulder,1991(2):879-890;

[7] Rohan Walker,Buddhima Indraratna.Vertical Drain Consolidationwith Parabolic Distribution of Permeabilityin Smear Zone[J].Journalof Geotechnical and Geoenvironmental Engineering,2006,132(7):937-941;

[8] Carrillo N.Simple Two and Three-Dimensional Cases inthe Theory ofConsolidation of Soils[J].Journal of Mathematical Physics,1942,21(1):1-5.

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