Numerical investigation of the path-dependent frost heave process in frozen rock under different freezing conditions

被引：0
作者：
Sun, Lei [1 ,2 ,3 ]
Tang, Xuhai [1 ]
Zeeman, Brant [2 ]
Liu, Quansheng [1 ]
Grasselli, Giovanni [2 ]
机构：
[1] Wuhan Univ, Sch Civil Engn, Wuhan 430072, Peoples R China
[2] Univ Toronto, Dept Civil & Mineral Engn, Toronto, ON M5S 1A4, Canada
[3] Chengdu Univ Technol, State Key Lab Geohazard Prevent & Geoenvironm Prot, Chengdu 610059, Peoples R China
来源：
JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING | 2025年 / 17卷 / 02期
基金：
加拿大自然科学与工程研究理事会;
关键词：
Frost heave; Freezing conditions; Water-ice phase change; Ice-rock interaction; 3D finite-discrete element method (FDEM); HYDRO-MECHANICAL MODEL; POROUS-MEDIA; ELEMENT-ANALYSIS; SATURATED ROCK; PHASE-CHANGE; WATER-FLOW; SIMULATION; TEMPERATURE; TRANSPORT; CONDUCTIVITY;
D O I：
10.1016/j.jrmge.2024.02.031
中图分类号：
P5 [地质学];
学科分类号：
0709 ; 081803 ;
摘要：
Frost heave in water-bearing rock masses poses significant threats to geotechnical engineering. This paper developed a novel three-dimensional (3D) frost model, based on the combined finite-discrete element method (FDEM), to investigate the frost heave process in rock masses where thermal transfer, water migration, water-ice phase transition (ice growth) and ice-rock interaction are explicitly simulated. The proposed model is first validated against existing experimental and analytical solutions, and further applied to investigate path-dependent frost heave behavior under various freezing conditions. Results show that freezing direction plays a vital role in the dynamic ice growth and ice-rock interaction, thus affecting the frost heave behavior. In the top-down freezing regime, ice plugs form first at the crack's top surface, sealing the crack and preventing water migration, which can amplify ice pressure. Parametric studies, including rock Young's modulus, ice-rock friction, and rock hydraulic conductivity, further reveal that the temporal aspects of ice development and rock mechanical response strongly affect ice-rock interaction and hence the frost heave mechanism. Furthermore, some typical phenomena (e.g. water/ ice extrusion and frost cracking) can also be well captured in this model. This novel numerical framework sheds new light on frost heave behavior and enriches our understanding of frost heave mechanisms and ice-rock interaction processes within cold environment engineering projects. (c) 2025 Institute of Rock and Soil Mechanics, Chinese Academy of Sciences. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/ 4.0/).
引用
收藏
页码：637 / 651
页数：15
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