Test and numerical simulation on frost heave in frozen soils in intermittent freezing mode

Zhou, Guoqing; Hu, Kun; Shang, Xiangyu; Jin-sheng, Zhou

doi:10.1016/j.proeps.2009.09.081

Cited by 7 publications

(3 citation statements)

References 1 publication

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“…It is seen that WFS-FA-EPS mixture demonstrates mitigated frost heave compared to common fine soils or artificial geomaterials, and is recognized as a choice of non-frost susceptible material in seasonal freezing regions. Zhou et al (2009).…”

Section: Fig 3 Frost Heave Ratio Versus Cement Contentmentioning

confidence: 99%

Frost Heave Mitigation by Incorporating Expanded Polystyrene Bead into Earth Fill

Deng

Zhou

Yang

2011

Instrumentation, Testing, and Modeling of Soil and Rock Behavior

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ABSTRACT:This study proposed an anti-frost geomaterial, comprising waste foundry sand (WFS), fly ash (FA), expanded polystyrene (EPS) beads, Portland cement and water, which is known as WFS-FA-EPS mixture. Twenty series of mixtures were prepared and investigated with regards to the effect of mixture component on the frost heave mitigation of the material. A freeze chamber was set up to impose frost action onto the mixtures. Results indicate that WFS-FA-EPS mixture is able to mitigate or eliminate frost heave if the mixture is properly designated. Compared with common earth fills, the mixture presents high micro-porosity, small frost heave, and low thermal conductivity. The frost heave mitigation of the mixture mainly depends on the volumetrically buffering capacity of EPS beads and cohesion force by cement content.

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Section: Fig 3 Frost Heave Ratio Versus Cement Contentmentioning

confidence: 99%

Frost Heave Mitigation by Incorporating Expanded Polystyrene Bead into Earth Fill

Deng

Zhou

Yang

2011

Instrumentation, Testing, and Modeling of Soil and Rock Behavior

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“…Shen et al proposed to set stress release holes in the soil to reduce the frost force [10] and analyzed the differences with conventional freezing in terms of temperature distribution, frost heave rate, and water migration. Zhou Jet al studied the law of frost heave under different construction modes through a onedimensional freezing test [11,12] and found that the amount of frost heave under an intermittent freezing mode is only about 40% of that under continuous freezing. Zhou and Zhou further revealed the mechanism of the intermittent freezing mode to reduce frost heave in terms of temperature gradient and water mobility [13].…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on Frost Heave Behavior of Steel Fiber Improved Soil

et al. 2022

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The incorporation of steel fibers into the natural soil is generally considered to be a novel and effective way to reduce the amount of frost heave induced by an artificial freezing process in underground engineering. In order to analyze the frost heave behavior of the steel fiber improved soil, a one-dimensional frost heave test under the open recharge system was conducted in this paper, focusing on the influence of steel fiber content, size, and soil properties. The results show that small amounts of steel fibers in the soil will not significantly affect the freezing process and temperature distribution, while the water-conducting properties of the steel fibers and the effect of limiting the ice lens growth can reduce the frost heave rate of the samples incorporated with 0.5% steel fibers by 26.93%. At the same time, the reduction effect of the frost heave rate increases linearly with the increase of steel fiber content and length but weakens with the increase of steel fiber diameter. In terms of soil property influence, the frost heave rate of the clay samples was reduced by 14.31% compared to the silt samples, while the water migration was reduced by 11.99%. In addition, the cementation of the steel fibers with the soil will also inhibit the growth of the ice lens and reduce the external water migration, thus significantly lowering the frost heave rate. The results can provide a reference for the research of the frost deformation of similar modified soils.

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“…Coal gannue, a kind of waste material produced while coal is mined and washed [1] . It accounts for about 15％-20％ of the output of coal [2] .…”

Section: Introductionmentioning

confidence: 99%

Effect of <i>Pseudomonas aeruginosa</i> ZGKD2 on the Growth of <i>Amorpha fruticosa </i>L in Coal Gangue

Zhang

Shi

Qian

2013

AMR

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The cadmium-resistant Pseudomonas aeruginosa strain ZGKD2 was isolated from gangue pile of coal area. Production of siderophores, indole-3-acetic acid (IAA) and the solubilization of phosphate were observed in the strain. Two types of siderophores were identified by UV spectrophotometer. The highest production of IAA and phosphate solubilization were 2.0 ug/mL and 7.2 ug/mL. The root length, plant height and fresh weight of Amorpha fruticosa L in the substrates of Coal gannue and losses were promoted after inoculation with ZGKD2. These data indicated that Pseudomonas aeruginosa strain ZGKD2 was a plant growth-promoting bacterial (PGPB).

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Test and numerical simulation on frost heave in frozen soils in intermittent freezing mode

Cited by 7 publications

References 1 publication

Frost Heave Mitigation by Incorporating Expanded Polystyrene Bead into Earth Fill

Frost Heave Mitigation by Incorporating Expanded Polystyrene Bead into Earth Fill

Experimental Study on Frost Heave Behavior of Steel Fiber Improved Soil

Effect of <i>Pseudomonas aeruginosa</i> ZGKD2 on the Growth of <i>Amorpha fruticosa </i>L in Coal Gangue

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