Nonlinear numerical simulation of rainwater infiltration through road embankments by FEM

Yang, Xu; Arbat, Gerard; Nieto, P.J. García; Castro-Fresno, Daniel

doi:10.1016/j.amc.2012.08.025

Cited by 5 publications

(3 citation statements)

References 12 publications

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“…Soil infiltration played an important role in the water cycle, which had great significance to the water resources, agricultural irrigations, and hydrological environment. Soil water infiltration was a dynamic process of water distributed in soil, so the change of soil water will affect the soil infiltration process [25][26][27][28][29][30].…”

Section: 4mentioning

confidence: 99%

Study on Variation of Surface Runoff and Soil Moisture Content in the Subgrade of Permeable Pavement Structure

Hou¹,

Wang²,

Shen³

et al. 2020

Advances in Civil Engineering

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The self-designed indoor simulated rainfall device was used to rain on five types of pavement structures with 4 types of rainfall intensity (2.5 mm/min, 3.4 mm/min, 4.6 mm/min, and 5.5 mm/min). The effect of rainfall intensity on the surface runoff, the relation between the subgrade soil moisture content changes, and the influence of initial soil water content on rain infiltration rate are studied. The test results show that the surface runoff coefficient of densely asphalted pavement is greater than 90% in drainage pavements and it has little influence on the reducing and hysteresis of the flood peak. The surface runoff coefficient of large-void asphalt pavement (permeable) is less than 40%. Although the large-void asphalt pavement (permeable) can reduce a small amount of surface runoff, it has no obvious effect on the reduction and hysteresis of the flood peak. In semipermeable pavement, with the increasing of the thickness of base (graded gravel), the surface runoff coefficient decreases at different rainfall intensities, parts of the surface runoff are reduced, and the arrival of flood peaks is delayed. In permeable roads, almost no surface runoff occurred. As time continued, the soil moisture content quickly reached a saturated state and presented a stable infiltration situation under the action of gravity and the gradient of soil water suction. As the initial moisture content increases, the initial infiltration rate decreases and the time to reach a stable infiltration rate becomes shorter. The drier the soil, the greater the initial infiltration rate and the higher the soil moisture content after infiltration stabilization. Permeable roads can greatly alleviate the pressure of urban drainage and reduce the risk of storms and floods.

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Section: 4mentioning

confidence: 99%

Study on Variation of Surface Runoff and Soil Moisture Content in the Subgrade of Permeable Pavement Structure

Hou¹,

Wang²,

Shen³

et al. 2020

Advances in Civil Engineering

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“…Twenty-five percent of the 38 articles that show mathematical modeling employ the techniques of: Finite elements (Arampatzis et al, 2001;Baca et al, 1997;Bause and Knabner, 2004;Bergamaschi and Putti, 1999;Duchene et al, 1994;Farthinet al, 2003;Hou and Wu, 1997;Ju and Kung, 1997;Lee et al, 2004;Norambuena-Contreras et al, 2012;Solin and Kuraz, 2011;Tan et al, 2004;Wu, 2010); Neural networks (Chua and Wong, 2010;Dorofki et al, 2014;Jain and Kumar, 2006;Goldshleger et al, 2012;Nestorl, 2006;Parchami-Aragui et al, 2013) and Finite volume discretization (Aravena and Dussailant, 2009;Calvo and Lisbona, 2001;Huber and Helmig, 2000;Lunati and Jenny, 2006;Manzini and Ferraris, 2004);Twarakavi et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Drywells Dimensioning: Analogy Between Water Flow in Soil and Heat Flux in Media Solids

Ferreira¹,

Ilha²

2020

J. Urb. Environ. Engng

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The drywell is an on-lot drainage system, which is composed by an excavation in the soil lined with a perforated piped and gravel at the bottom and sides. There are many models for on lot systems dimensioning, which were initially developed for agriculture areas or for simulation of water percolation in porous media, thus, they are not fully optimized for small areas like urban lots. This article proposes a model for dimensioning drywells, which is based on physical and hydrological characteristics of the installation site. It was developed using the analogy between water flow in soil and the heat flux in media solids. Results obtained with the proposed model were statistically similar (p>0.05) to those obtained with experimental data.

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“…In addition, water content can be expressed as gravimetric water content (w), volumetric water content (θ), or degree of saturation (S). However, in civil engineering applications considering geomaterials [5][6] results are commonly represented as volumetric water content. As it can be seen in Figure 1, WRC is a nonlinear graphical relationship characterized by singular points (i.e., associated variables) where the slope of the curve changes abruptly.…”

Section: Introductionmentioning

confidence: 99%

Water retention curve of soil-cement composite material

Yang

2015

Ingeniare. Rev. chil. ing.

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Nonlinear numerical simulation of rainwater infiltration through road embankments by FEM

Cited by 5 publications

References 12 publications

Study on Variation of Surface Runoff and Soil Moisture Content in the Subgrade of Permeable Pavement Structure

Study on Variation of Surface Runoff and Soil Moisture Content in the Subgrade of Permeable Pavement Structure

Drywells Dimensioning: Analogy Between Water Flow in Soil and Heat Flux in Media Solids

Water retention curve of soil-cement composite material

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