摘要
青藏高原气候暖湿化现象的持续,对青藏铁路安全平稳运行提出了更高的要求。在气候环境变化条件下,西大滩盆地与安多盆地之间的多年冻土退化所引发的基础设施变形是青藏铁路面临的最大挑战。青藏铁路建设初期,就从调控对流方式、调控传导方式及调控辐射方式三个角度研究了青藏铁路多年冻土的保护措施。本文介绍了目前针对多年冻土问题所采取的各类维护措施,将不同技术的特点和优势进行综述,并得出结论:未来针对青藏铁路多年冻土的保护措施应结合现有技术的成功经验,发挥新材料和新能源的优势。
The continuous warming and humidification of the climate on the Qinghai-Tibet plateau has put forward higher requirements for the safe and stable operation of the Qinghai-Xizang railway.Under the conditions of climate and environmental change,the deformation of infrastructure caused by the degradation of permafrost between the Xidatan Basin and the Anduo Basin was the biggest challenge faced by the Qinghai-Xizang railway.Since the early stage of the construction of the Qinghai-Xizang railway,protective measures for permafrost on the railway have been studied from three perspectives:regulating convection mode,regulating conduction mode,and regulating radiation mode.This article introduced various maintenance measures currently taken to address the problem of permafrost,and summarized the characteristics and advantages of different technologies.The conclusion indicates that future protection measures for permafrost on the Qinghai-Xizang railway should combine the successful experience of existing technologies and leverage the advantages of new materials and energy.
作者
刘有乾
董添春
王瑜鑫
LIU Youqian;DONG Tianchun;WANG Yuxin(China Railway Qinghai Xizang Group Co.Ltd.,Xining 810000,China;Postgraduate Department,China Academy of Railway Sciences,Beijing 100081,China)
出处
《铁道建筑》
北大核心
2024年第6期123-129,共7页
Railway Engineering
基金
国家自然科学基金(U2268216)
中国国家铁路集团有限公司科技研究开发计划(K2022G017)
中国铁道科学研究院集团有限公司基金(2023YJ185)。
关键词
青藏铁路
多年冻土
气候变化
维护措施
调控对流方式
调控传导方式
调控辐射方式
Qinghai-Xizang railway
permafrost
climate change
maintenance measures
regulating convective modes
regulating the transmission mode
regulating radiation methods
