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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:

期数:

2026年02期

页码:

153-162

栏目:

桥隧工程

出版日期:

2026-03-30

文章信息/Info

Title:

Numerical simulation study on distribution characteristics of frost heave force in cold region tunnel surrounding rock

文章编号:

1673-2049(2026)02-0153-10

作者:

魏智强¹,陈维²,王福恩¹,王二博³,王亚琼³,李汉军¹,王拥军¹

(1. 吉林中铁高速公路有限公司,吉林 长春 130000; 2. 吉林省交通规划设计院,吉林 长春 130021; 3. 长安大学 公路学院,陕西 西安 710064)

Author(s):

WEI Zhiqiang¹, CHEN Wei², WANG Fuen¹, WANG Erbo³, WANG Yaqiong³, LI Hanjun¹, WANG Yongjun¹

(1. Jilin China Railway Expressway Co., Ltd., Changchun 130000, Jilin, China; 2. Jilin Traffic Planning and Design Institute, Changchun 130021, Jilin, China; 3. School of Highway, Chang'an University, Xi'an 710064, Shaanxi, China)

关键词:

寒区隧道;  数值计算;  水-热-力耦合;  不均匀冻胀;  冻胀率;  冻结深度

Keywords:

cold region tunnel;  numerical calculation;  water-heat-force coupling;  uneven frost heave;  frost heaving rate;  freezing depth

分类号:

U451

DOI:

10.19815/j.jace.2024.04081

文献标志码:

A

摘要:

为了研究寒区隧道围岩在低温环境下孔隙水发生相变而引起围岩冻胀问题,以大路二号隧道工程为依托,运用有限元数值计算平台COMSOL Multiphysics构建了相应的水-热-力耦合数值计算模型,对不同冻胀率以及冻结深度下寒区隧道围岩冻胀力的分布特性进行研究。结果表明:随着围岩内冻胀率和冻结深度的增加,寒区隧道围岩各位置处的冻胀力呈逐渐增大的变化趋势,且隧道围岩各位置处的冻胀力由大到小依次为拱脚、拱肩、拱顶、仰拱; 随着围岩等级的增加,在相同的冻胀率和冻结深度下隧道围岩的冻胀力呈逐渐减小趋势,这与理论计算结果相符; 由围岩内各监测点冻胀力的演化特征可知,土质隧道围岩冻胀力的大小与围岩内冻胀率和冻结深度有关,冻胀率和冻结深度值越大,围岩受到冻胀影响的区域越广,隧道越易发生冻胀病害; 在隧道修建过程中要加强对隧道拱脚以及拱肩位置处的防冻措施,以保证隧道后期的运营安全。

Abstract:

To study the frost heave problem of surrounding rock in cold-region tunnels caused by the phase change of pore water under low-temperature conditions, a coupled hydro-thermal-mechanical numerical model was developed based on the Dalu No.2 tunnel project using the finite element simulation platform COMSOL Multiphysics. The model was used to analyze the distribution characteristics of frost heave pressure in the surrounding rock under different frost heave rates and freezing depths. The results show that with the increase of frost heave rate and freezing depth within the surrounding rock, the frost heave force at each position of surrounding rock of tunnel in cold area increases gradually, and the frost heave force at each position of tunnel surrounding rock from large to small is arch foot, arch shoulder, vault and inverted arch. With the increase of surrounding rock grade, the frost heave pressure of the tunnel surrounding rock gradually decreases under the same frost heave rate and freezing depth, which is consistent with the theoretical calculation results. The evolution characteristics of frost heave pressure at monitoring points within the surrounding rock indicate that the magnitude of frost heave pressure in soil tunnels is closely related to the frost heave rate and freezing depth within the surrounding rock. The greater the frost heave rate and freezing depth, the wider the area of the surrounding rock affected by frost heave, and the more prone the tunnel is to frost-related damage. During tunnel construction, it is essential to enhance anti-frost measures, particularly at the arch foot and arch shoulder, to ensure the tunnel safety operation in the long term.

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备注/Memo

备注/Memo:

收稿日期:2024-04-12
基金项目:吉林省交通运输重点科技项目(2023ZDGC-1-1); 陕西省创新能力支撑计划项目(2023-CX-TD-35); 陕西省重点研发计划项目(2023KXJ-159)
作者简介:魏智强(1976-),男,高级工程师,E-mail:120614985@qq.com。
通信作者:王亚琼(1975-),男,工学博士,教授,博士生导师,E-mail:ys08@gl.chd.edu.cn。
Author resume: WEI Zhiqiang(1976-), male, senior engineer, E-mail: 120614985@qq.com; WANG Yaqiong(1975-), male, PhD, professor, E-mail: ys08@gl.chd.edu.cn.

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更新日期/Last Update: 2026-04-01