季冻区在建铁路路基冻害防治措施研究  

Research on Prevention and Control Measures of Freezing Damage of Railway Subgrade Under Construction in Seasonal Frozen Area

作　　者：朱志有 李雄锐 王珍福 桑彦廷 ZHU Zhiyou;LI Xiongrui;WANG Zhenfu;SANG Yanting(China Construction Civil Engineering Co.,Ltd.,Chongqing 404100)

机构地区：[1]中国建筑土木建设有限公司西南公司,重庆404100

出　　处：《河南科技》2021年第29期110-112,共3页Henan Science and Technology

摘　　要：近年来,我国季冻区既有铁路路基冻害研究积累了诸多经验,取得了良好的工程实践效果。但是,在地质、气候、冻融循环等诸多因素的共同影响下,季节性冻土区铁路路基冻害问题仍旧突出。在交通强国、东北老工业基地振兴、川藏铁路建设等新时代战略驱动下,将有更多的铁路工程向季节性冻土区推进,进一步完善我国铁路网。为此,对铁路路基冻害特征、冻害成因进行整理分析,针对规划中及建设过程中的铁路提出相应路基冻害预防措施,避免铁路在运营过程中频繁出现路基冻害。In recent years, a lot of experience has been accumulated in the research on frost damage of existing railway subgrades in seasonal freezing areas in China, and good engineering practice results have been achieved. However, under the combined influence of many factors such as geology, climate, and freeze-thaw cycles, the problem of frost damage to railway subgrades in seasonally frozen soil areas is still prominent. Driven by new era strategies such as the power of transportation, the revitalization of the old industrial base in Northeast China, and the Sichuan-Tibet Railway, more railway projects will be promoted to seasonally frozen soil areas, and China′s railway network will be further improved. To analyze the characteristics of railway subgrade freezing damage and the causes of freezing damage, and then proposes corresponding subgrade freezing damage prevention measures for railways in the planning and construction process to avoid frequent subgrade freezing damage during railway operation.

关 键 词：铁路 路基冻害 冻胀 

分 类 号：U216.412[交通运输工程—道路与铁道工程]