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Stable expression and control parameters in the numerical simulation of unsaturated flow

Zhiyuan ZHANG; Xu LI; Yongkang WU; Xiaokang LI

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 12,   Pages 1501-1514 doi: 10.1007/s11709-022-0893-2

Abstract: hydraulic conductivity, initial condition, and air-entry pressure have a higher sensitivity to the simulation

Keywords： Richards’ equation     sensitivity analysis     unsaturated soil     hydraulic diffusivity     seepage simulation    

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Permeability analysis and seepage process study on crystal layer in melt crystallization with fractal

Xiaobin JIANG, Baohong HOU, Yongli WANG, Jingkang WANG

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 4,   Pages 435-441 doi: 10.1007/s11705-011-1139-3

Abstract: In this paper a porous media seepage model was applied to analyze the permeability and study the seepageA good simulation result was obtained which met the experiment result well.

Keywords： melt crystallization     porous media     fractal     permeability     hyperpure material     simulation    

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Foundations bearing capacity subjected to seepage by the kinematic approach of the limit analysis

Mehdi VEISKARAMI, Ghasem HABIBAGAHI

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 4,   Pages 446-455 doi: 10.1007/s11709-013-0227-5

Abstract: An estimate of the ultimate load on foundations on soil layers subject to groundwater flow has been presented. The kinematic approach of the limit analysis was employed to find the upper-bound limit of the bearing capacity. Both smooth and rough base strip foundations were considered associated with different collapse patterns. Presence of the groundwater flow leads to a non-symmetric collapse pattern, i.e., a weak side and a strong side in two-sided collapse patterns, depending on the direction of the flow. It was found that the bearing capacity has a decreasing trend with increase in the groundwater flow gradient and hence, a reduction factor has been introduced to the third term in the bearing capacity equation as a function of the flow gradient.

Keywords： foundation     bearing capacity     limit analysis     numerical computation     plasticity     seepage    

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Surficial stability analysis of soil slope under seepage based on a novel failure mode

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 3,   Pages 712-726 doi: 10.1007/s11709-021-0729-5

Abstract: this study, the limit stress state and discrimination equation of an infinite slope under saturated seepagesemi-analytical framework considering the edge effect for the surficial stability of a soil slope under downslope seepagemethods, and can be efficiently used to assess the surficial stability of soil slopes under rainwater seepage

Keywords： soil slope     seepage     surficial failure mode     stress state     edge effects    

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Quantification of seepage in a multi-layered disconnected river-aquifer system

Jiang LI, Haizhu HU, Xiaomin MAO, Yi LIU

Frontiers of Agricultural Science and Engineering 2017, Volume 4, Issue 2,   Pages 237-245 doi: 10.15302/J-FASE-2017135

Abstract: Quantification of seepage in disconnected river-aquifer systems is significant for local water managementWe used MFSL to calculate local seepage rate, and used GIS to extend the results to a regional scale.of MFSL is discussed by comparing the results with the double ring infiltration test, the numerical simulationResults showed that low permeability liners could greatly reduce the seepage rate.However, if an unlined inundation area exists, the seepage rate may increase greatly.

Keywords： infiltration     low permeability liner     multi-layered porous media     river-aquifer seepage    

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Seepage analysis of Upper Gotvand Dam concerning gypsum karstification (2D and 3D approaches)

Jamshid SADREKARIMI, Majid KIYANI, Behnam FAKHRI, Mohammad Javad VAHDATIRAD, Amin BARARI

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 1,   Pages 71-78 doi: 10.1007/s11709-010-0083-5

Abstract: 2D and 3D models of the dam together with the foundation and abutments were established, and several seepagegypsum veins that are scattered throughout the foundation ground were included in the models, and the seepageThese may be attributed to the fact that with 2D model the lateral components of vectors of seepage velocity

Keywords： Upper Gotvand Dam     seepage analysis     gypsum veins     3D model     discharge flux    

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Application of entropy-based fuzzy matter-element analysis in seepage monitoring of RCC dam

Chongshi GU, Zhijun ZHANG, Xin CAI, Yue HOU

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 1,   Pages 105-111 doi: 10.1007/s11709-010-0015-4

Abstract: Taking account of the fuzzy results of the seepage monitoring analysis of roller compacted concrete (RCC) dam and uncertainties of the individual indicator evaluation, the fuzzy matter-element model of seepageeffectively avoid the problems of weight distribution and uncertainties of subjective judgments of the seepagefurther the example shows that the analysis of entropy-based fuzzy matter-element analysis model of the seepage

Keywords： information entropy     fuzzy matter-element     roller compacted concrete (RCC) dam     seepage analysis    

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Seepage failure by heave in sheeted excavation pits constructed in stratified cohesionless soils

Serdar KOLTUK, Jie SONG, Recep IYISAN, Rafig AZZAM

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 6,   Pages 1415-1431 doi: 10.1007/s11709-019-0565-z

Abstract: In this study, experimental and numerical investigations are performed to clarify the seepage failureIt is shown that the evaluation of base stabilities of excavation pits against seepage failure by using

Keywords： seepage failure by heave     cohesionless stratified soil     model test     Terzaghi and Peck’s approach     FE analysis    

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Embankment dam foundation analysis for the decrease of internal erosion likelihood

Marc SMITH

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 4,   Pages 431-436 doi: 10.1007/s11709-012-0183-5

Abstract: Major seepage phenomena were noticed in the foundation downstream from the dam where the vertical seepageglobal electromagnetic survey was carried out to detect and map the main sources, pathways and exits of seepage

Keywords： seepage detection     geostatistical analysis     dam monitoring     internal erosion     LIDAR survey    

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Recent development in biogeotechnology and its engineering applications

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 5,   Pages 1073-1096 doi: 10.1007/s11709-021-0758-0

Abstract: Microbial geotechnology or biogeotechnology is a new branch of geotechnical engineering. It involves the use of microbiology for traditional geotechnical applications. Many new innovative soil improvement methods have been developed in recent years based on this approach. A proper understanding of the various approaches and the performances of different methods can help researchers and engineers to develop the most appropriate geotechnical solutions. At present, most of the methods can be categorized into three major types, biocementation, bioclogging, and biogas desaturation. Similarities and differences of different approaches and their potential applications are reviewed. Factors affecting the different processes are also discussed. Examples of up-scaled model tests and pilot trials are presented to show the emerging applications. The challenges and problems of biogeotechnology are also discussed.

Keywords： biogeotechnology     biocementation     bioclogging     biogas     strength enhancement     liquefaction mitigation     seepage    

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Environment Isotope Method to Investigate the Bypass Abutment Seepage Flow in Xin'anjiang Right Dam

Chen Jiansheng,Liu Jiangang,Dong Haizhou,Chen Liang

Strategic Study of CAE 2004, Volume 6, Issue 1,   Pages 57-63

Abstract: O and 3H, temperature and electric conductivity had been used to analyze bypass abutment seepageEnvironmental isotope data on the right dam indicate the existence of bypass seepage flow in rock.The seepage water from the drainage gallery boreholes is not only from mountain precipitation but alsoThere is no seepage from reservoir to the grouted gallery through fault F1 under No. 6 and No. 7 dam

Keywords： environment isotope     by-pass seepage     precipitation     reservoir    

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Alluvial channel hydrodynamics around tandem piers with downward seepage

Rutuja CHAVAN, Wenxin HUAI, Bimlesh KUMAR

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 6,   Pages 1445-1461 doi: 10.1007/s11709-020-0648-x

Abstract: with a 75 mm front and 90 mm rear, and pier (T2) with a 90 mm front and 75 mm rear, with and without-seepagestrong wake region was observed behind the piers, but the vortex strength diminished with downward seepagebed, the moments, turbulent kinetic energy (TKE), and TKE fluxes were found to decrease with downward seepageDownward seepage also resulted in restrained growth of scouring with time.

Keywords： scour     seepage     Strouhal number     tandem arrangement     turbulent characteristics    

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Modeling of hydrological processes in arid agricultural regions

Jiang LI,Xiaomin MAO,Shaozhong KANG,David A. BARRY

Frontiers of Agricultural Science and Engineering 2015, Volume 2, Issue 4,   Pages 283-294 doi: 10.15302/J-FASE-2015076

Abstract: transpiration from vegetated/bare soil and surface water, agricultural canal/surface water flow and seepage

Keywords： hydrological processes     irrigation area     SPAC     crop growth     groundwater     canal seepage    

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Upper bound solution to seismic active earth pressure of submerged backfill subjected to partial drainage

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 6,   Pages 1480-1493 doi: 10.1007/s11709-021-0776-y

Abstract: evaluate the seismic active earth pressure on a retaining wall with backfill subjected to partial steady seepage

Keywords： seismic active earth pressure     partial seepage flow     pore pressure     anisotropy     upper bound theorem    

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Title Author Date Type Operation

Stable expression and control parameters in the numerical simulation of unsaturated flow

Zhiyuan ZHANG; Xu LI; Yongkang WU; Xiaokang LI

Journal Article

Permeability analysis and seepage process study on crystal layer in melt crystallization with fractal

Xiaobin JIANG, Baohong HOU, Yongli WANG, Jingkang WANG

Journal Article

Foundations bearing capacity subjected to seepage by the kinematic approach of the limit analysis

Mehdi VEISKARAMI, Ghasem HABIBAGAHI

Journal Article

Surficial stability analysis of soil slope under seepage based on a novel failure mode

Journal Article

Quantification of seepage in a multi-layered disconnected river-aquifer system

Jiang LI, Haizhu HU, Xiaomin MAO, Yi LIU

Journal Article

Seepage analysis of Upper Gotvand Dam concerning gypsum karstification (2D and 3D approaches)

Jamshid SADREKARIMI, Majid KIYANI, Behnam FAKHRI, Mohammad Javad VAHDATIRAD, Amin BARARI

Journal Article

Application of entropy-based fuzzy matter-element analysis in seepage monitoring of RCC dam

Chongshi GU, Zhijun ZHANG, Xin CAI, Yue HOU

Journal Article

Seepage failure by heave in sheeted excavation pits constructed in stratified cohesionless soils

Serdar KOLTUK, Jie SONG, Recep IYISAN, Rafig AZZAM

Journal Article

Embankment dam foundation analysis for the decrease of internal erosion likelihood

Marc SMITH

Journal Article

Recent development in biogeotechnology and its engineering applications

Journal Article

Environment Isotope Method to Investigate the Bypass Abutment Seepage Flow in Xin'anjiang Right Dam

Chen Jiansheng,Liu Jiangang,Dong Haizhou,Chen Liang

Journal Article

Alluvial channel hydrodynamics around tandem piers with downward seepage

Rutuja CHAVAN, Wenxin HUAI, Bimlesh KUMAR

Journal Article

Modeling of hydrological processes in arid agricultural regions

Jiang LI,Xiaomin MAO,Shaozhong KANG,David A. BARRY

Journal Article

The extension of simulation —— from system simulation to domain simulation

28 Nov 2020

Conference Videos

Upper bound solution to seismic active earth pressure of submerged backfill subjected to partial drainage

Journal Article