... evapotranspiration rate of the soil column tests may not be representative of field conditions. 26 10 2021 08 02 2023 © 2023 Thomas Telford Ltd 2023 gas landfills unsaturated soil vegetation water flow Hydrogen sulfide (H₂S) provides the toxic odour produced in landfill...

... is not realistic. In proximity to the interface of a liquefiable layer with an overlying lower permeability layer, upwards water flow can lead to localised, co-seismic pore volume increase. The aim of this paper is to quantify the effects of pore volume increase on cyclic resistance curves. Cyclic triaxial...

... modelling landslides numerical modelling theoretical analysis water flow Debris flows remain one of the most destructive natural hazards, causing great annual human fatalities and property losses across the world. Design and construction of countermeasures, such as rigid and flexible barriers...

... Telford Ltd 2020 ground improvement water flow Water-repellent soils, defined as having a liquid–solid contact angle, θ > 90°, can delay, reduce or prevent infiltration, lower evaporation and prevent capillary rise (e.g. Letey et al., 1962 ; Brandt, 1969 ; DeBano...

.... The results of model prediction for unsaturated hydraulic conductivity of compacted bentonite are in close agreement with the experimental data over a large range of suction values. chemical properties clays microscopy permeability radioactive waste disposal water flow The interlayer water...

... cumulative percolation of the landfill cover very significantly, which narrowly ranged between 3·1 and 4·7% of the annual precipitation during the monitoring period. 22 08 2018 16 08 2019 © 2019 Thomas Telford Ltd 2019 partial saturation seepage suction vegetation water flow...

... V = n w f ( 1 − S f ) ∂ ρ gf ∂ t d V − ρ gf n w f ∂ S f ∂ t d V dewatering landfills numerical modelling seepage water flow Landfilling remains one of the main municipal solid waste (MSW...

... and debris floods; the former occur more frequently. In some cases, the origin of these flows is related to the combination of solid materials provided by shallow landslides and runoff water, whereas in others, water flowing along steep channels entrains solid materials, both from the bottom and from...

... saturation seepage suction vegetation water flow Vegetation is known to affect the hydrology and hence slope stability (Osman & Barakbah, 2011 ; Smethurst et al., 2015). Plant roots cause changes in soil matric suction (Simon & Collison, 2002 ; Veylon et al., 2015...

...)) was determined by way of equation (1) by neglecting all the terms relating to the radial direction, since water flow in this case is one-dimensional and vertical, as shown in Fig. 3 . 18 12 2016 28 03 2018 © 2018 Thomas Telford Ltd 2018 partial saturation suction vegetation water...

... experiment was used to evaluate the effect of the surface roughness on the interface permeability. 15 05 2017 23 01 2018 © 2018 Thomas Telford Ltd 2018 model tests seepage water flow The presence of a structural surface in a soil modifies the arrangement of the soil...

... liquefaction pore pressures water flow Undrained element tests form the basis of our understanding of earthquake-induced liquefaction. The principal hypothesis behind these tests is that, during earthquake loading, drainage through liquefied sand is slow enough to be neglected. An example...

... et al. (2017) and Liang et al. (2017) . partial saturation permeability seepage suction vegetation water flow Soil infiltration rate plays a key role in slope hydrology and stability. It is one of the most important soil parameters that affects prediction of slope...

... head ΔH_cr and average gradient i_avg,cr = ΔH_cr/L for piping initiation and piping progression both decrease with increasing model width. This proves that the horizontal water flow parallel to the water-retaining structure...

... 2017 clays compaction laboratory tests suction water flow Soil compaction, which reduces the air-phase volume by the application of compactive effort, is a frequently used approach to enhance the soil mechanical properties in earthworks such as dams, roads, railways and so...

...) and the equivalent vapour content θ_v (m³/m^{3); and t is the time (s). ground freezing laboratory tests numerical modelling water flow Airfield runways in an airport in north-western China were reported to have experienced significant frost heave damage}...

... embankments numerical modelling soil/structure interaction water flow In the UK, shrink and swell displacements caused by seasonal changes in clay soil water content can cause serviceability problems for vegetated earthworks (Andrei, 2000 ; O'Brien, 2007) and exacerbate the progressive failure...

... and h₀, h_c are water head and cover depth from the tunnel centre, respectively (see Fig. 2). Fig. 2. Flow into and pressure distribution around underwater tunnel buried structures pore pressures tunnels water flow Recently, there has been a trend toward...

..., theoretical analysis water flow waves and wave loading High excess pore-water pressures develop in soil when the vertical total stress is quickly reduced by rapid drawdown of water. The excess pore-water pressure is defined as the departure of pressure from the hydrostatic condition. Persisting...

... Telford Ltd 2014 landfills microscopy permeability radioactive waste disposal water flow Climate change impacts on waste management, particularly related to infiltration of rainwater through landfill caps protecting radioactive and other hazardous waste, is a growing concern. Thus...