Pore characteristics and micro-structure change of undisturbed loess induced by acid corrosion

Yan, Ruixin; Zhang, Lei; Zhang, Jinyuan; Peng, Jianbing; Chen, Lijie

doi:10.1016/j.enggeo.2022.106880

Cited by 9 publications

(1 citation statement)

References 49 publications

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“…Concurrently, these cementing substances react with the acid, forming holes that gradually penetrate the internal pores of the soil. This process changes the soil from a dense structure to a loose one, providing channels for the aqueous solution to enter the soil [88,89]. Additionally, the mutual contact area between soil grains decreases, and the connection strength between grains is reduced, leading to decreased soil stability and enhanced disintegration.…”

Section: Microstructural Changes Of Soil Induced By Water-soil Chemic...mentioning

confidence: 99%

Unraveling the Mystery of Water-Induced Loess Disintegration: A Comprehensive Review of Experimental Research

Chen,

Li,

Wang

et al. 2024

Sustainability

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Loess disintegration is a significant physicochemical and mechanical dissolution process that occurs when loess comes into contact with water. This phenomenon contributes to geological disasters such as loess cave erosion, landslides, and debris flows. The disintegration of loess can be influenced by both internal and external factors. Research on internal factors of loess disintegration has been widely recorded, but the research progress on external environmental factors that affect loess disintegration is not well summarized. This review summarizes the impacts of external water environmental factors on loess disintegration and reveals that six external water environmental factors, namely the temperature of the aqueous solution, hydrodynamic conditions, solution pH, salt concentration and type in the solution, freeze–thaw cycles, and dry–wet cycles, can significantly impact loess disintegration. Furthermore, this review delves into three key research areas in loess disintegration under the influence of these water environmental factors: experimental research on loess disintegration, the disintegration parameters used in such research and their variations, and the water–soil chemical reactions and microstructural changes during loess disintegration. It concludes that current experimental research on loess disintegration suffers from inadequate studies, with existing research associated with poor comparability and weak representativeness, and a lack of comprehensive, systematic analysis of its regularities of influence and response mechanisms from both microscopic and macroscopic perspectives. This paper can provide valuable insights for the prevention of loess geological disasters and engineering safety construction.

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Section: Microstructural Changes Of Soil Induced By Water-soil Chemic...mentioning

confidence: 99%

Unraveling the Mystery of Water-Induced Loess Disintegration: A Comprehensive Review of Experimental Research

Chen,

Li,

Wang

et al. 2024

Sustainability

View full text Add to dashboard Cite

show abstract

Extension mechanism and failure mode investigation on a fissured loess slope induced by loading

Tang,

Deng,

Fan

et al. 2024

Bull Eng Geol Environ

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Effects of different chloride salts on granite residual soil: properties and water–soil chemical interaction mechanisms

Chen

Tang

et al. 2023

J Soils Sediments

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Pore characteristics and micro-structure change of undisturbed loess induced by acid corrosion

Cited by 9 publications

References 49 publications

Unraveling the Mystery of Water-Induced Loess Disintegration: A Comprehensive Review of Experimental Research

Unraveling the Mystery of Water-Induced Loess Disintegration: A Comprehensive Review of Experimental Research

Extension mechanism and failure mode investigation on a fissured loess slope induced by loading

Effects of different chloride salts on granite residual soil: properties and water–soil chemical interaction mechanisms

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