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Torsional vibrations of a cylindrical foundation embedded in a saturated poroelastic half-space

Dazhi WU,Lu YU

Frontiers of Structural and Civil Engineering 2015, Volume 9, Issue 2,   Pages 194-202 doi: 10.1007/s11709-015-0292-z

Abstract: Considering the interactions between an embedded foundation and saturated soil, the torsional vibrationsof a cylindrical foundation embedded in a saturated poroelastic medium are analyzed in this paper.Assuming both the side surface and the bottom surface of the foundation are perfectly bonded to soil,the reaction torques that the side soil and bottom soil acting on the foundation can be gained from, the angular amplitude of the foundation, the equivalent stiffness and damping coefficients of the soil

Keywords： embedded foundation     saturated soil     rigid foundation     elastic foundation     torsional vibration    

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Experimental study of two saturated natural soils and their saturated remoulded soils under three consolidated

Mingjing JIANG, Haijun HU, Jianbing PENG, Serge LEROUEIL

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 2,   Pages 225-238 doi: 10.1007/s11709-011-0108-8

Abstract: In this paper, an experimental investigation is conducted to study the mechanical behavior of saturatednatural loess, saturated natural filling in ground fissure and their corresponding saturated remoulded

Keywords： stress paths     static liquefaction     natural soil     remoulded soil     loess     structure     total strength indices     excess    

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Shaking table test of composite foundation reinforcement of saturated silty soil for high speed railway

JIANG Guanlu, LIU Xianfeng, ZHANG Jianwen, ZHAO Ruyi

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 3,   Pages 353-360 doi: 10.1007/s11709-007-0047-6

Abstract: column-net composite foundation and cement fly-ash gravel (CFG) column-net composite foundation on the saturatedsilty soil along the Beijing-Shanghai High Speed Railway.

Keywords： large-scale     CFG column-net     amplifying     displacement     subgrade    

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Uncertainty assessment in hydro-mechanical-coupled analysis of saturated porous medium applying fuzzy

Farhoud KALATEH, Farideh HOSSEINEJAD

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 2,   Pages 387-410 doi: 10.1007/s11709-019-0601-z

Abstract: of the present study was to develop a fuzzy finite element method, for uncertainty quantification of saturatedsoil properties on dynamic response of porous media, and also to discrete the coupled dynamic equationsnumbers of Poisson’s ratio, Young’s modulus, and permeability coefficient as uncertain material of soilCalculations were for the optimized combinations of upper and lower bounds of input parameters to reveal soilseveral numerical examples were analyzed by the developed method, including a dynamic analysis of elastic soil

Keywords： fuzzy finite element method     saturated soil     hydro-mechanical coupled equations     coupled analysis     uncertainty    

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Thermo-mechanical simulation of frost heave in saturated soils

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 9,   Pages 1400-1412 doi: 10.1007/s11709-023-0990-x

Abstract: It occurs when the porewater in the soil is exposed to freezing temperatures.This paper presents the use of a coupled thermo-mechanical approach to simulate frost heave in saturatedThis function indirectly considers the effect of the water seepage inside the soil.heave phenomenon, such as water fusion, porosity variation, cryogenic suction force generation, and soilFurthermore, the results show that non-uniform thermal boundaries and presence of a culvert inside the soil

Keywords： frost heave     multiphysics analysis     thermo-mechanical approach     saturated soils    

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Seismic behavior of cantilever wall embedded in dry and saturated sand

Sanku KONAI, Aniruddha SENGUPTA, Kousik DEB

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 3,   Pages 690-705 doi: 10.1007/s11709-020-0615-6

Abstract: In this paper, the behavior of a small scale model embedded cantilever retaining wall in dry and saturatedThe variation of the pore water pressures within the sand is also observed in the cases of saturatedwall due to seismic loading is below 1% of the total height of the wall in dry sand, but in case of saturated

Keywords： embedded cantilever wall     shake table test     FLAC2D     seismic loading     saturated and dry sand    

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Frost heave and freezing processes of saturated rock with an open crack under different freezing conditions

Zhitao LV, Caichu XIA, Yuesong WANG, Ziliang LIN

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 4,   Pages 947-960 doi: 10.1007/s11709-020-0638-z

Abstract: Frost heave experiments on saturated sandstone and tuff with an open crack are conducted under uniformTo illustrate the reasons for this phenomenon, a numerical model on the freezing processes of saturated

Keywords： frost heave     rock with crack     freezing process     freezing condition     frost heave mode    

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Solutions for a completely saturated porous elastic solid with impeded boundaries

CHEN Yunmin, LING Daosheng, ZHU Bin, CHENG Zehai

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 3,   Pages 322-328 doi: 10.1007/s11709-007-0042-y

Abstract: Analytical solutions are presented for the consolidation of a semi-infinite stratum and a finite soillayer vary during the consolidation due to the coupling of the excess pore water dissipation and the soil

Keywords： coupling     vertical     pressure     excess     distributed    

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Coupled diffusion of chloride and other ions in saturated concrete

Nattapong DAMRONGWIRIYANUPAP, Linyuan LI, Yunping XI

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 3,   Pages 267-277 doi: 10.1007/s11709-011-0112-z

Abstract: Corrosion of reinforcing steel due to chloride ions is one of the severe deterioration problems in long-term performance of reinforced concrete structures. The deterioration process is frequently found in marine concrete structures, highway pavements, and bridges exposed to deicing salts. The diffusion of chloride ions is associated and strongly affected by other ions in the pore solution in concrete. In this paper, chloride penetration into concrete structures was mathematically characterized by the Nernst-Planck equation which considered not only diffusion mechanism of the chloride ions but also ionic interaction among other ions coming from externally applied deicers and within the Portland cement paste. Electroneutrality was used to determine the electrostatic potential induced by the ionic interaction. The material models of chloride binding capacity and chloride diffusion coefficient were incorporated in the governing equations. The governing equations were solved by using finite element method. A numerical example was used to illustrate the coupling effect of multi-ionic interactions and the effect of influential parameters. The numerical results obtained from the present model agreed very well with available test data.

Keywords： diffusion     chloride     concrete     Nernst-Planck equation     durability    

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finite element method for calculation and analysis to the elasto-plastic dynamic response of fluid-saturated

LI Liang, DU Xiuli, LI Liyun, ZHAO Chenggang

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 4,   Pages 436-442 doi: 10.1007/s11709-007-0059-2

Abstract: In order to describe the elasto-plastic dynamic response of fluid-saturated porous media, the incrementalelasto-plastic wave propagation equations of fluid-saturated porous media are developed by the fundamentaltheory of continuum mechanics and appointing to the characteristic of fluid-saturated porous media.element method is developed for calculation and analysis of the elasto-plastic dynamic response of fluid-saturated

Keywords： discretization     computational     calculation     integral     requirement    

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The Consolidation of Highly Saturated Soils and Saturation Degree's Influence

Jin Zhigao

Strategic Study of CAE 2004, Volume 6, Issue 9,   Pages 73-76

Abstract: Biot's consolidation theories, the consolidating mechanism and consolidating process of highly saturatedsoil are discussed according to the variety of saturation degree.

Keywords： consolidation     saturated degree     elasticity modulus     compressing    

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Enhanced nitrogen removal and microbial analysis in partially saturated constructed wetland for treating

Zhenfeng Han, Ying Miao, Jing Dong, Zhiqiang Shen, Yuexi Zhou, Shan Liu, Chunping Yang

Frontiers of Environmental Science & Engineering 2019, Volume 13, Issue 4, doi: 10.1007/s11783-019-1133-4

Abstract:

Anaerobically digested swine wastewater was treated by a novel constructed wetland.

Tidal operation was better for total nitrogen removal than intermittent flow.

Mechanism of nitrogen removal by biozeolite-based constructed wetland was discussed.

Simultaneous nitrification and denitrification were determined in zeolite layer.

Keywords： Constructed wetland     Decentralized swine wastewater     Biozeolite     Simultaneous nitrification and denitrification     Nitrogen removal pathway    

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Experimental study on saturated flow boiling heat transfer of R290/R152a binary mixtures in a horizontal

Xin ZOU, Maoqiong GONG, Gaofei CHEN, Zhaohu SUN, Jianfeng WU

Frontiers in Energy 2010, Volume 4, Issue 4,   Pages 527-534 doi: 10.1007/s11708-010-0109-7

Abstract: An experimental study on the saturated flow boiling heat transfer for a binary mixture of R290/R152a

Keywords： flow boiling     heat transfer     binary mixture     R290/R152a    

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“Partial pressures” of humid air in wide pressure and temperature ranges

Zidong WANG, Hanping CHEN, Shilie WENG

Frontiers in Energy 2013, Volume 7, Issue 4,   Pages 511-517 doi: 10.1007/s11708-013-0281-7

Abstract: Semi-permeable membrane models are proposed and applied for both saturated and unsaturated humid air.One discovery is that the “partial pressure” of the water vapor in saturated humid air equals , rather

Keywords： partial pressure     Dalton’s partial pressure law     humid air     saturated     unsaturated    

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Mitigation strategies for soil acidification based on optimal nitrogen management REVIEW

Frontiers of Agricultural Science and Engineering 2024, Volume 11, Issue 2,   Pages 229-242 doi: 10.15302/J-FASE-2024562

Abstract:

Soil acidification is a serious constraint to food production worldwide.In addition, low soil acid buffering capacity, mainly determined by soil parent materials and soil organicThis study proposes targeted mitigation strategies for different stages of soil acidification, whichinclude monitoring soil carbonate content and pH of soils with pH > 6.5 (e.g., calcareous soil), use–crop management system that balances acid production and soil buffering capacity.

Keywords： Soil acidification     nutrient management     nitrogen     soil buffering capacity    

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Title Author Date Type Operation

Torsional vibrations of a cylindrical foundation embedded in a saturated poroelastic half-space

Dazhi WU,Lu YU

Journal Article

Experimental study of two saturated natural soils and their saturated remoulded soils under three consolidated

Mingjing JIANG, Haijun HU, Jianbing PENG, Serge LEROUEIL

Journal Article

Shaking table test of composite foundation reinforcement of saturated silty soil for high speed railway

JIANG Guanlu, LIU Xianfeng, ZHANG Jianwen, ZHAO Ruyi

Journal Article

Uncertainty assessment in hydro-mechanical-coupled analysis of saturated porous medium applying fuzzy

Farhoud KALATEH, Farideh HOSSEINEJAD

Journal Article

Thermo-mechanical simulation of frost heave in saturated soils

Journal Article

Seismic behavior of cantilever wall embedded in dry and saturated sand

Sanku KONAI, Aniruddha SENGUPTA, Kousik DEB

Journal Article

Frost heave and freezing processes of saturated rock with an open crack under different freezing conditions

Zhitao LV, Caichu XIA, Yuesong WANG, Ziliang LIN

Journal Article

Solutions for a completely saturated porous elastic solid with impeded boundaries

CHEN Yunmin, LING Daosheng, ZHU Bin, CHENG Zehai

Journal Article

Coupled diffusion of chloride and other ions in saturated concrete

Nattapong DAMRONGWIRIYANUPAP, Linyuan LI, Yunping XI

Journal Article

finite element method for calculation and analysis to the elasto-plastic dynamic response of fluid-saturated

LI Liang, DU Xiuli, LI Liyun, ZHAO Chenggang

Journal Article

The Consolidation of Highly Saturated Soils and Saturation Degree's Influence

Jin Zhigao

Journal Article

Enhanced nitrogen removal and microbial analysis in partially saturated constructed wetland for treating

Zhenfeng Han, Ying Miao, Jing Dong, Zhiqiang Shen, Yuexi Zhou, Shan Liu, Chunping Yang

Journal Article

Experimental study on saturated flow boiling heat transfer of R290/R152a binary mixtures in a horizontal

Xin ZOU, Maoqiong GONG, Gaofei CHEN, Zhaohu SUN, Jianfeng WU

Journal Article

“Partial pressures” of humid air in wide pressure and temperature ranges

Zidong WANG, Hanping CHEN, Shilie WENG

Journal Article

Mitigation strategies for soil acidification based on optimal nitrogen management

Journal Article