... validating thresholds for their thermo-mechanical behaviour type. deformation laboratory tests sand–clay mixture temperature effects C clay content (%) C c coefficient of curvature C c compression index C_u...

... 12 2022 15 12 2023 © 2025 Emerald Publishing Limited 2025 suction temperature effects unsaturated soils Energy piles are an environmentally friendly and efficient technology for harvesting shallow geothermal energy. Unlike conventional piles, the circulation of heat...

.... Previous studies on the temperature effects on clays and peats (Hueckel & Baldi, 1990 ; Towhata et al., 1993 ; Boudali et al., 1994 ; Fox & Edil, 1996 ; Oikawa & Ogino, 2001 (for peats); Cekerevac & Laloui, 2004 ; Marques et al., 2004 ; Abuel-Naga et...

... 2024 Emerald Publishing Limited 2024 energy geotechnics laboratory testing temperature effects The requirement to reduce carbon dioxide (CO_{2) emissions and rely on sustainable and environmentally friendly sources of energy has created new opportunities for the field of geotechnics}...

... questions. clays ground freezing strength & testing of materials temperature effects tensile properties Recent underground projects involve complex excavation processes at greater depths reaching 40–50 m more commonly than ever, often adjacent to existing substructures and/or under...

... (dimensions, m (unless otherwise specified); PVC, polyvinyl chloride; t indicates thickness) distributed fibre optic sensing field testing & monitoring long-term tunnel performance rainfall effect seasonal change temperature effects tunnels & tunnelling wireless sensor network...

... deformation sands temperature effects Table 2. Properties of the three types of silica sand Material Particle shape Void ratio, e Specific gravity, G s Mean particle size, d 50 : mm Coefficient of uniformity, C u F-35 Rounded Min...

... to be a function of σ 1 and θ constitutive relations creep ground freezing shear strength temperature effects The ground freezing technique has been used for over 150 years in engineering applications to temporarily increase the stiffness and strength of the subsoil and to provide...

... piles temperature effects A thermo-active pile is an energy geostructure (Brandl, 2006) that has been increasingly used in practice for supporting and reducing carbon emissions from buildings or other infrastructure (Bourne-Webb et al., 2009 ; Mimouni & Laloui, 2015...

... freezing temperature effects Frozen saturated soils generally consist of solid minerals, ice and water. This poses a question: what is a good effective stress measure for frozen soils? This question reflects the difference in stiffness between water and ice and the influence on how the ice forms...

... Thomas Telford Ltd 2021 field instrumentation full-scale tests piles & piling temperature effects A number of studies examining the thermo-mechanical behaviour of energy piles have now been published. These are a mix of field testing, model testing and numerical modelling; Bourne...

..., the demand for long-term monitoring in practical engineering was satisfied. 25 08 2019 02 07 2020 © 2020 Thomas Telford Ltd 2020 laboratory tests monitoring seepage temperature effects Seepage can significantly influence the stability of rock and soil masses. Many...

... displacement of the ram was measured by installing a displacement transducer. 13 02 2020 01 07 2020 © 2020 Thomas Telford Ltd 2020 clays deformation fabric/structure of soils ground freezing laboratory tests temperature effects Theoretical frameworks to interpret...

... temperature effects tunnels & tunnelling Owing to rising awareness of the negative impacts of burning fossil fuels on the environment, as well as diminishing resources, interest in renewable energy sources has been growing. The resulting rapid technological advancement continuously improves...

... RH2000, while the water table is located below the former dry crust and follows a hydrostatic pore water pressure profile with depth. clays consolidation creep full-scale tests piles & piling settlement temperature effects A Vetec 363YH-30t load cell, with 300 kN capacity...

... 25 09 2018 © 2018 Thomas Telford Ltd 2018 permeability rock mechanics temperature effects Hot dry rock (HDR) resources, exploited as heat from rocks with a temperature in the range from 150 to 650°C and at about 3 to 5 km below the earth's surface, have attracted much...

... q′_cs = Mp′_cs regardless of frozen/unfrozen states. Here the linear expression is meant ad hoc for the sake of subsequent calculation – the temperature effect on the frozen soil behaviour is known to cease being linear below a certain temperature (typically around −10°C...

..., distribution, and reproduction in any medium, provided the original work is properly cited. in situ testing penetrometers temperature effects Heat flow through soil, and resulting temperatures, are important for ground source heat systems (also called shallow geothermal), for high-power...

... permeability silts temperature effects Freeze–thaw cycles are seasonal natural processes occurring in the shallow soils in northern regions, but in some geotechnical applications they could be artificially induced in the ground by means of ground heat exchangers. The cycles can be imposed on purpose...

... laboratory tests strain temperature effects Soil fabric refers to the arrangement of soil particles (Mitchell & Soga, 2005) and significantly influences the volume change behaviour of soil. Most of the previous studies about the effects of soil fabric on the volume change behaviour of soil have...