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On-line Access: 2023-01-20
Received: 2022-03-04
Revision Accepted: 2022-03-21
Crosschecked: 2023-02-01
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Pei WANG, Ying GE, Tuo WANG, Qi-wei LIU, Shun-xiang SONG. CFD-DEM modelling of suffusion in multi-layer soils with differentfines contents and impermeable zones[J]. Journal of Zhejiang University Science A,in press.Frontiers of Information Technology & Electronic Engineering,in press.https://doi.org/10.1631/jzus.A2200108 @article{title="CFD-DEM modelling of suffusion in multi-layer soils with differentfines contents and impermeable zones", %0 Journal Article TY - JOUR
不同细颗粒含量及含不透水区域层状土试样计算流体动力学-离散元法潜蚀模拟机构:1香港理工大学,土木与环境工程系,中国香港,999077;2湖南大学,土木工程学院,中国长沙,410082 目的:不同细颗粒含量及含不透水区域层状土中的潜蚀过程与均质土中的潜蚀过程存在差异。本文旨在探讨非均质土以及复杂边界条件下间断级配土的潜蚀过程。 创新点:1.建立计算流体动力学-离散元法(CFD-DEM)耦合数值模型,并通过单颗粒下落速度和Ergun测试进行模型验证,确认该方法的准确性;2.分析不同细颗粒含量层状土对潜蚀量的影响,从而阐述非均质土中潜蚀的演化过程;3.揭示层状土中不同分布的不透水区域对潜蚀的影响。 方法:1.采用颗粒下落以及Ergun测试对CFD-DEM耦合数值模拟中流体及颗粒参数进行标定(图2);2.利用标定参数对具有不同细颗粒含量的层状土试样进行潜蚀模拟(图7);3.对含有不透水区域的层状土试样进行潜蚀模拟。 结论:1.对于层状土样,累积侵蚀质量主要由底层土层决定;一般来说,底层土层的细颗粒含量越多,累积侵蚀量越大;此外,当底层以上的土层细颗粒含量较高时,潜蚀得到缓解;反之,则潜蚀较为严重。2.对具有不同不透水区域的试样进行的测试表明,流量在决定累积质量方面起主要作用;土样内部的不透水区域可以增加周围区域的流速,有利于细颗粒的迁移,加剧潜蚀;但当不透水区域较多时,由于增加了流动路径的长度,阻碍细颗粒的迁移,潜蚀程度则有所降低。 关键词组: Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article
Reference[1]BaoN, WeiJ, ChenJF, et al., 2020. 2D and 3D discrete num [2]erical modelling of soil arching. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 21(5):350-365. [3]ChangDS, ZhangLM, 2013. Extended internal stability criteria for soils under seepage. Soils and Foundations, 53(4):569-583. [4]ChengK, WangY, YangQ, 2018. A semi-resolved CFD-DEM model for seepage-induced fine particle migration in gap-graded soils. Computers and Geotechnics, 100:30-51. [5]di FeliceR, 1994. The voidage function for fluid-particle interaction systems. International Journal of Multiphase Flow, 20(1):153-159. [6]EmersonW, 1967. A classification of soil aggregates based on their coherence in water. Soil Research, 5(1):47-57. [7]ErgunS, 1952. Fluid flow through packed columns. Chemical Engineering Progress, 48:89-94. [8]FosterM, FellR, SpannagleM, 2000. The statistics of embankment dam failures and accidents. Canadian Geotechnical Journal, 37(5):1000-1024. [9]GhebreiyessusYT, GantzerCJ, AlbertsEE, et al., 1994. Soil erosion by concentrated flow: shear stress and bulk density. Transactions of the ASAE, 37(6):1791-1797. [10]HansonGJ, HuntSL, 2007. Lessons learned using laboratory jet method to measure soil erodibility of compacted soils. Applied Engineering in Agriculture, 23(3):305-312. [11]HorikoshiK, TakahashiA, 2015. Suffusion-induced change in spatial distribution of fine fractions in embankment subjected to seepage flow. Soils and Foundations, 55(5):1293-1304. [12]HuZ, ZhangYD, YangZX, 2019. Suffusion-induced deformation and microstructural change of granular soils: a coupled CFD-DEM study. Acta Geotechnica, 14(3):795-814. [13]HuZ, ZhangYD, YangZX, 2020. Suffusion-induced evolution of mechanical and microstructural properties of gap-graded soils using CFD-DEM. Journal of Geotechnical and Geoenvironmental Engineering, 146(5):04020024. [14]IndraratnaB, NguyenVT, RujikiatkamjornC, 2011. Assessing the potential of internal erosion and suffusion of granular soils. Journal of geotechnical and Geoenvironmental Engineering, 137(5):550-554. [15]Itasca, 2015. PFC 3D particle flow code in 3 dimensions. PFC 5.0 Documentation. Itasca, Minneapolis, USA. [16]JasakH, JemcovA, TukovicZ, 2007. OpenFOAM: ACþþ library for complex physics simulations. Proceedings of the International Workshop on Coupled Methods in Numerical Dynamics, Dubrovnik, Croatia, Vol. 1000. [17]JinZ, LuZ, YangY, 2021. Numerical analysis of column collapse by smoothed particle hydrodynamics with an advanced critical state-based model. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 22(11):882-893. [18]KakuturuS, ReddiLN, 2006. Evaluation of the parameters influencing self-healing in earth dams. Journal of Geotechnical and Geoenvironmental Engineering, 132(7):879-889. [19]KenneyTC, LauD, 1985. Internal stability of granular filters. Canadian Geotechnical Journal, 22(2):215-225. [20]LiuXX, ShenSL, XuYS, et al., 2018. Analytical approach for time-dependent groundwater inflow into shield tunnel face in confined aquifer. International Journal for Numerical and Analytical Methods in Geomechanics, 42(4):655-673. [21]LiuXX, ShenSL, XuYS, et al., 2021a. Non-linear spring model for backfill grout-consolidation behind shield tunnel lining. Computers and Geotechnics, 136:104235. [22]LiuXX, ShenSL, XuYS, et al., 2021b. A diffusion model for backfill grout behind shield tunnel lining. International Journal for Numerical and Analytical Methods in Geomechanics, 45(4):457-477. [23]LiuYJ, WangLZ, HongY, et al., 2020. A coupled CFD-DEM investigation of suffusion of gap graded soil: coupling effect of confining pressure and fines content. International Journal for Numerical and Analytical Methods in Geomechanics, 44(18):2473-2500. [24]LiuYJ, YinZY, WangLZ, et al., 2021. A coupled CFD–DEM investigation of internal erosion considering suspension flow. Canadian Geotechnical Journal, 58(9):1411-1425. [25]LyleWM, SmerdonET, 1965. Relation of compaction and other soil properties to erosion resistance of soils. Transactions of the ASAE, 8(3):419-0422. [26]LyuHM, ShenSL, WuYX, et al., 2021. Calculation of groundwater head distribution with a close barrier during excavation dewatering in confined aquifer. Geoscience Frontiers, 12(2):791-803. [27]MoffatR, FanninRJ, GarnerSJ, 2011. Spatial and temporal progression of internal erosion in cohesionless soil. Canadian Geotechnical Journal, 48(3):399-412. [28]QianJG, LiWY, YinZY, et al., 2021a. Influences of buried depth and grain size distribution on seepage erosion in granular soils around tunnel by coupled CFD-DEM approach. Transportation Geotechnics, 29:100574. [29]QianJG, ZhouC, YinZY, et al., 2021b. Investigating the effect of particle angularity on suffusion of gap-graded soil using coupled CFD-DEM. Computers and Geotechnics, 139:104383. [30]ReddiLN, LeeIM, BonalaMVS, 2000. Comparison of internal and surface erosion using flow pump tests on a sand-kaolinite mixture. Geotechnical Testing Journal, 23(1):116-122. [31]ShenSL, LyuHM, ZhouAN, et al., 2021. Automatic control of groundwater balance to combat dewatering during construction of a metro system. Automation in Construction, 123:103536. [32]SherardJL, DunniganLP, DeckerRS, 1976. Identification and nature of dispersive soils. Journal of the Geotechnical Engineering Division, 102(4):287-301. [33]WanCF, FellR, 2004. Laboratory tests on the rate of piping erosion of soils in embankment dams. Geotechnical Testing Journal, 27(3):295-303. [34]WangP, YinZY, WangZY, 2022. Micromechanical investigation of particle-size effect of granular materials in biaxial test with the role of particle breakage. Journal of Engineering Mechanics, 148(1):04021133. [35]WangT, ZhangFS, FurtneyJ, et al., 2022. A review of methods, applications and limitations for incorporating fluid flow in the discrete element method. Journal of Rock Mechanics and Geotechnical Engineering, 14(3):1005-1024. [36]WenMJ, WangKH, WuWB, et al., 2021. Dynamic response of bilayered saturated porous media based on fractional thermoelastic theory. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 22(12):992-1004. http://doi.org/10.1631/jzus.A2100084 [37]XieZZ, ShenYS, TakabatakeK, et al., 2020. Coarse-grained DEM study of solids sedimentation in water. Powder Technology, 361:21-32. [38]XieZZ, WangS, ShenYS, 2021a. CFD-DEM modelling of the migration of fines in suspension flow through a solid packed bed. Chemical Engineering Science, 231:116261. [39]XieZZ, WangS, ShenYS, 2021b. CFD-DEM study of segregation and mixing characteristics under a bi-disperse solid-liquid fluidised bed. Advanced Powder Technology, 32(11):4078-4095. [40]XiongH, WuH, BaoXH, et al., 2021a. Investigating effect of particle shape on suffusion by CFD-DEM modeling. Construction and Building Materials, 289:123043. [41]XiongH, YinZY, ZhaoJD, et al., 2021b. Investigating the effect of flow direction on suffusion and its impacts on gap-graded granular soils. Acta Geotechnica, 16(2):399-419. [42]YangJ, YinZY, LaouafaF, et al., 2019a. Analysis of suffusion in cohesionless soils with randomly distributed porosity and fines content. Computers and Geotechnics, 111:157-171. [43]YangJ, YinZY, LaouafaF, et al., 2019b. Modeling coupled erosion and filtration of fine particles in granular media. Acta Geotechnica, 14(6):1615-1627. [44]YangJ, YinZY, LaouafaF, et al., 2020. Three-dimensional hydromechanical modeling of internal erosion in dike‐on-foundation. International Journal for Numerical and Analytical Methods in Geomechanics, 44(8):1200-1218. [45]YinZY, WangP, ZhangFS, 2020. Effect of particle shape on the progressive failure of shield tunnel face in granular soils by coupled FDM-DEM method. Tunnelling and Underground Space Technology, 100:103394. [46]YinZY, JinYF, ZhangX, 2021. Large deformation analysis in geohazards and geotechnics. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 22(11):851-855. [47]ZhaoT, HoulsbyGT, UtiliS, 2014. Investigation of granular batch sedimentation via DEM-CFD coupling. Granular Matter, 16(6):921-932. Journal of Zhejiang University-SCIENCE, 38 Zheda Road, Hangzhou
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