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On-line Access: 2023-03-31

Received: 2023-03-05

Revision Accepted: 2023-03-07

Crosschecked: 2023-03-31

Cited: 0

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Citations:  Bibtex RefMan EndNote GB/T7714

 ORCID:

Zhen-yu Yin

https://orcid.org/0000-0003-4154-7304

Pei WANG

https://orcid.org/0000-0003-4897-9329

Sheng DAI

https://orcid.org/0000-0003-0221-3993

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Journal of Zhejiang University SCIENCE A 2023 Vol.24 No.4 P.299-302

http://doi.org/10.1631/jzus.A2300MMG


Microstructures and micromechanics of geomaterials


Author(s):  Zhenyu YIN, Pei WANG, Sheng DAI

Affiliation(s):  Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China; more

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Zhenyu YIN, Pei WANG, Sheng DAI. Microstructures and micromechanics of geomaterials[J]. Journal of Zhejiang University Science A, 2023, 24(4): 299-302.

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year="2023",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A2300MMG"
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Abstract: 
Geomaterials, such as soil, rock, and concrete, have a clearly defined microstructure at the level of individual grains (Sprunt and Brace, 1974; Ichikawa et al., 2001). While difficult to observe directly, these microstructures, including their particle size distribution, particle shape, mineralogy, interaction, and bonding behavior, have a strong influence on both micro- and macroscopic behaviors of geomaterials (Gao and Zhao, 2013; He et al., 2018; Alqam et al., 2019; Sun et al., 2020; Yin et al., 2020; Wang et al., 2022). In recent years, various kinds of engineered geomaterials, such as fiber-reinforced and bio-reinforced soils, have been shown to have even more sophisticated microstructures (Uygunoğlu, 2008; Mujah et al., 2019; Akeed et al., 2022). Additionally, the interaction between various microstructures and fluid flows further complicates attempts to understand the associations between the microstructure and performance of geomaterials (Xiong et al., 2021; Wang P et al., 2023).

岩土材料的微观结构和微观力学

作者:尹振宇1,王培1,戴胜2
机构:1.香港理工大学,土木及环境工程学系,中国香港;2.佐治亚理工学院,土木与环境工程系,美国亚特兰大,30332 GA
概要:岩土材料(如黏土、砂土、岩石和混凝土等)在颗粒尺度上均具有独特且明显的微观结构(如组构、粒径、颗粒形状、矿物组成、接触模式和内部孔隙等)。这些颗粒尺度的微观结构较难直接观察,但对岩土材料的宏观物理力学行为(如剪切强度、压缩性和渗透性等)有着显著的影响。近年来,各种新型岩土工程材料(如纤维增强土和生物加固土)表现出更加复杂的微观结构。岩土材料微观结构对材料工程性质的影响促使人们采用更加先进的理论、实验和数值方法对其进行探索,从而大大加深了人们对宏微观力学的认识与理解。为分享岩土材料微观结构和微观力学的最新研究进展,本专辑收集了在该研究领域具有代表性的研究成果,涵盖了颗粒-颗粒和颗粒-流体相互作用、X射线计算机断层扫描观测技术及其应用、颗粒破碎和颗粒形状的影响、岩石裂隙扩展等方面。希望本专辑能加强读者对各个研究领域的理解,并进一步推动多场多尺度问题的应用和发展。

关键词:微观结构;微观力学;岩土材料

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

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