Page 60 - 2025年第56卷第1期
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Advances in numerical model of soil desiccation cracking and curling Ⅰ:
Foundational equations and mesh-based numerical methods
ZHANG Qing, LIU Panyong, GU Xin, QIAO Yanhe
(College of Mechanics and Engineering Science, Hohai University, Nanjing 211100, China)
Abstract: Soil desiccation cracking and curling is widely concerned by people, especially with the vagaries of cli⁃
mate and the frequent occurrence of extreme dry weather. The desiccation cracks and curling weaken the strength of
soil structure, causing various potential natural disasters. However, the problem of soil desiccation cracking and
curling presents a certain level of complexity. Specifically, it is coupled with the process of moisture evaporation,
soil shrinkage, dry cracking, air intrusion and soil curl, and involves the interaction of many physical fields such
as heat-water-mechanics-chemistry. Therefore, it is still a great scientific challenge to develop a numerical model
with efficient algorithm, capable of realizing the calculation of moisture evolution, volume shrinkage, crack growth
and curling under evaporation conditions. The authors intend to discuss the aforementioned issues in two papers. In
this paper, the mechanical mechanism of desiccation cracking and curling is analyzed with the main influencing
factors, and the foundational equations of moisture diffusion and the elastic-plastic constitutive are provided for nu⁃
merical calculation. In addition, the development and application of mesh-based method in the soil desiccation
cracking and curling are reviewed, including the advantage and existing problems of grid numerical method.
Through analysis and comparison, the conventional mesh-based numerical methods are constrained by the assump⁃
tions of deformation continuity, making it difficult to address issues of multi-crack and three-dimensional complex
crack propagation. In contrast, mesh-free particle methods directly construct interpolation basis functions on a set
of discrete points, showing great potential in capturing the complex soil desiccation cracking and curling behavior.
Keywords: soil desiccation cracking; curling; multi-physical field coupling; mechanical mechanism; mesh-
based numerical method
(责任编辑: 李 娜)
2024 年优秀审稿专家表彰名单
在审稿专家、 编委及广大作者的共同努力下, 2024 年《水利学报》 的论文学术水平进一
步提升。 全年共有 290 位专家参与《水利学报》的审稿, 为弘扬严谨求实的作风、 认真负责的
态度及甘于奉献的精神, 编辑部综合考虑审稿专家的审稿数量、 审稿质量和审稿时效, 评选
出 30 位专家为 2024 年度《水利学报》优秀审稿专家。 名单如下(按姓名笔画排序):
于福亮 于静洁 马光文 王立成 王红瑞
王进廷 王银堂 介玉新 方国华 卢金友
申建建 冯建军 年廷凯 刘春蓁 李传奇
李明超 杨开林 杨汉波 沈振中 张验科
邵薇薇 金菊良 姚文艺 黄显峰 梅亚东
曹永强 蒋云钟 韩宇平 解建仓 熊立华
《水利学报》编辑部
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