季冻区隧道冻胀力计算方法及防冻技术研究综述-《高速铁路技术》

文章信息/Info

Title:: Summary of Studies on the Calculation Method of Frost-heave Force and Anti-freezing Technology of Tunnels in Seasonal Frozen Areas

Author(s):: CUI Guangyao; TIAN Yuhang; WANG Xuelai; HOU Zhan; 1. North China University of Technology, Beijing 100144, China;
2. The First Construction Division Co., Ltd. of China Railway Tunnel Group, Chongqing 401121, China

Keywords:: tunnel works|seasonal frozen area|frost-heave force|calculation method|anti-freezing technology

摘要:: 季冻区隧道的冻害整治是隧道工程的一大难点，本文主要从冻胀力的计算方法和防冻技术两个方面对季冻区隧道的冻胀力计算和防冻技术展开分析。在冻胀力计算方面，主要总结了冻胀力计算的3种计算模型，即含水风化层冻胀模型、整体冻胀模型和局部存水冻胀模型；在防冻技术方面，所采取的防冻措施主要分为主动保温措施和被动防冻措施。研究发现：现有冻胀力计算模型仅从纯力学角度解释了冻胀力的来源，与实际工程有较大出入，如何建立更贴合实际的冻胀模型，是今后研究的重点。此外，目前对防冻效果优越的离壁式保温套衬的研究较少，对防水保温材料的研究与创新也需进一步加强。

Abstract:: The treatment of frost damage in seasonal frozen areas is a major difficulty for railway tunnels. This paper mainly analyzes the calculation of frost-heave force and anti-freezing technology of tunnels in seasonal frozen areas from two aspects:the calculation method of frost-heave force and anti-freezing technology. In the aspect of frost-heave force calculation, three calculation models for frost-heave force are summarized, namely, frost heave model of water-bearing weathered layer, whole frost heave model, and local water-retaining frost heave model. In terms of anti-freezing technology, the anti-freezing measures adopted are mainly divided into active insulation measures and passive anti-freezing measures. It is found that the existing calculation model of frost heaving force only explains the source of frost-heave force from the purely mechanical point of view, which is quite different from the actual project. How to establish a frost heave model more in line with the actual situation is the focus of future research. In addition, at present, there is little research on off-wall insulation lining with excellent anti-freezing effect, and the research and innovation of waterproof insulation materials need to be further strengthened.

备注/Memo:: 作者简介:崔光耀(1983-),男,副教授。基金项目:国家自然科学基金项目资助（52178378）；北京市科技创新服务能力建设基本科研项目（110052971921/061）；中铁隧道集团科技创新计划项目（隧研合2018-05）引文格式:崔光耀, 田宇航, 王雪来, 等. 季冻区隧道冻胀力计算方法及防冻技术研究综述[J]. 高速铁路技术,2021,12(6):1-6,11.CUI Guangyao, TIAN Yuhang, WANG Xuelai, et al. Summary of Studies on the Calculation Method of Frost-heave Force and Anti-freezing Technology of Tunnels in Seasonal Frozen Areas[J]. High Speed Railway Technology, 2021, 12(6):1-6,11.