Добірка наукової літератури з теми "Wetting-induced collapse"

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Статті в журналах з теми "Wetting-induced collapse"

1

Ng, C. W. W., Q. Cheng, and C. Zhou. "Thermal effects on yielding and wetting-induced collapse of recompacted and intact loess." Canadian Geotechnical Journal 55, no. 8 (2018): 1095–103. http://dx.doi.org/10.1139/cgj-2017-0332.

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Yielding and wetting-induced collapse are two important interrelated aspects of unsaturated loess behaviour. Previous studies on loess were generally conducted under a single temperature condition. The principal objective of this study is to investigate thermal effects on yielding and wetting-induced collapse of recompacted and intact loess. Isotropic compression tests were carried out to determine yield stress at different suctions (0 and 100 kPa) and temperatures (5, 23, and 50 °C). Moreover, wetting tests were conducted at various temperatures and stresses. Results of the wetting tests were
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2

Jiang, Mingjing, Haijun Hu, and Fang Liu. "Summary of collapsible behaviour of artificially structured loess in oedometer and triaxial wetting tests." Canadian Geotechnical Journal 49, no. 10 (2012): 1147–57. http://dx.doi.org/10.1139/t2012-075.

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This paper summarizes experimental studies on wetting-induced collapsibility in loess using single-oedometer, double-oedometer, and triaxial wetting tests. Artificially structural loess samples with interparticle bonding calcite (CaCO3) and a large void ratio were tested in the laboratory to avoid sampling disturbance of natural loess. The comparison between the single- and double-oedometer tests confirms that the wetting-induced deformation is independent of the sequence of wetting and loading. The conventional triaxial apparatus was enhanced for investigating the collapse deformation in resp
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3

Vrancken, Nandi, Guy Vereecke, Stef Bal, et al. "Pattern Collapse of High-Aspect-Ratio Silicon Nanostructures - A Parametric Study." Solid State Phenomena 255 (September 2016): 136–40. http://dx.doi.org/10.4028/www.scientific.net/ssp.255.136.

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This work focuses on capillary-induced collapse of high-aspect-ratio silicon nanopillars. Modification of the surface chemistry is demonstrated to be an efficient approach for reducing capillary forces and consequently reduce pattern collapse. Special effort is spent on determination of the wetting state of chemically modified surfaces as complete structure wetting is of utmost importance in wet processing. In light of this, an ATR-FTIR based method has been developed to unambiguously distinguish between wetting and non-wetting states.
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4

Capobianco, Vittoria, Leonardo Cascini, Sabatino Cuomo, and Vito Foresta. "Wetting-induced collapse behaviour of a natural and vegetated coarse pyroclastic soil." E3S Web of Conferences 195 (2020): 03025. http://dx.doi.org/10.1051/e3sconf/202019503025.

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Unsaturated pyroclastic soils originated by Vesuvius volcano show a collapsible behaviour upon wetting with a significant reduction in volume and rearrangement of solid skeleton. The paper investigates the role played by vegetation on wetting-induced collapse behaviour (namely, collapsibility) of reconstituted unsaturated soil specimens through two series of wetting tests in a standard oedometer. The first series of tests was performed on bare soil specimens, as to resemble the site conditions. The second group of tests was conducted on the same soil previously vegetated for 20 weeks with pere
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5

Kamei, Takeshi, and Masao Enomoto. "Wetting-Induced Collapse Behaviour of Compacted Silty Soil." Doboku Gakkai Ronbunshu, no. 505 (1994): 97–103. http://dx.doi.org/10.2208/jscej.1994.505_97.

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6

Lawton, Evert C., Richard J. Fragaszy, and Mark D. Hetherington. "Review of Wetting‐Induced Collapse in Compacted Soil." Journal of Geotechnical Engineering 118, no. 9 (1992): 1376–94. http://dx.doi.org/10.1061/(asce)0733-9410(1992)118:9(1376).

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7

Fu, Zhong Zhi, Si Hong Liu, and Wei Xing Gu. "Evaluating the Wetting Induced Deformation of Rockfill Dams Using a Hypoplastic Constitutive Model." Advanced Materials Research 243-249 (May 2011): 4564–68. http://dx.doi.org/10.4028/www.scientific.net/amr.243-249.4564.

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Evaluating the wetting induced deformation of the shell is one of the most important issues in designing a high rockfill dam. Excessive wetting deformation and the relevant stress deterioration in adjacent impervious structures may cumber the normal operation of the engineering and seriously risk the safety of the dam. In this paper, a hypoplastic creep model is incorporated into a finite element procedure to study the wetting induced deformation of a rockfill dam. Considerable lateral movement towards the upstream and an additional wetting collapse presented in the upstream shell induced by r
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8

Liu, Qiqi, Wanli Xie, Hui Yang, et al. "Intrinsic Mechanisms of Differences in Wetting-Induced Deformation of Soils on Chinese Loess Plateau: Insights into Land Stability and Sustainable Management." Land 14, no. 2 (2025): 312. https://doi.org/10.3390/land14020312.

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Wetting-induced soil deformation significantly impacts land stability and management on the Chinese Loess Plateau. This study analyzed silt soils from the Late Pleistocene (1 m depth) and Middle Pleistocene (25 m depth) to investigate compression and collapsible deformation during wetting. The compression in both soils progressed through three stages: slow deformation under low pressure, accelerated deformation under moderate pressure, and decelerated deformation under high pressure. Wetting intensified the compression in the 1 m sample but reduced it in the 25 m sample, with the deformation b
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9

Choudhury, Chinumani, and Tadikonda Venkata Bharat. "Wetting-induced collapse behavior of kaolinite: influence of fabric and inundation pressure." Canadian Geotechnical Journal 55, no. 7 (2018): 956–67. http://dx.doi.org/10.1139/cgj-2017-0297.

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Collapsible soils are known to withstand high normal stresses without undergoing a significant volume change in an air-dry state. The soil is, however, susceptible to a large volume change upon wetting. The volumetric collapse behavior of these soils is of great engineering interest to address the problem of ground subsidence. Kaolinite was found to be a collapsible soil similar to the loess soil. The collapse mechanism in kaolinite was due to changes in particle association (fabric) with the interaction with different pore fluids. Several physicochemical parameters strongly influenced the par
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10

THOREL, L., V. FERBER, B. CAICEDO, and I. M. KHOKHAR. "Physical modelling of wetting-induced collapse in embankment base." Géotechnique 61, no. 5 (2011): 409–20. http://dx.doi.org/10.1680/geot.10.p.029.

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