科技创新与应用2024，Vol.14Issue(23)：110-113,4.DOI:10.19981/j.CN23-1581/G3.2024.23.026
多年冻土区热融湖塘状态及侵蚀路基病害防治措施
摘要
Abstract
In recent years,with the climate warming and the annual increase of precipitation on the Qinghai-Tibet Plateau,the number and area of hot-melt lakes and ponds along the Qinghai-Tibet Railway have also increased significantly,which began to affect the safety of the Qinghai-Tibet Railway roadbed.Through on-the-spot investigation and statistical analysis,the development status and countermeasures of hot-thawed lakes and ponds in permafrost of Qinghai-Tibet Railway are studied.The conclusions include:With the warming of climate and the increase of precipitation on the Qinghai-Tibet Plateau year by year,the number and area of hot-thawed lakes and ponds along the Qinghai-Tibet Railway also increase obviously,and they are getting closer and closer to the roadbed.There are 14 thermal thawing lakes and ponds developed within 20 m on both sides of the Qinghai-Tibet railway roadbed,and some of them have been extended to the foot of the roadbed slope,which seriously affects the stability of permafrost and roadbed.Two typical thermal thawing lakes and ponds that affect the safety of railway roadbed are analyzed,including the double isolation of surface water and groundwater and the measures of solar heat rod to enhance the stability of permafrost.关键词
青藏铁路/多年冻土区/热融湖塘/应对措施/路基Key words
Qinghai-Tibet Railway/permafrost region/thermal thawing lakes and ponds/countermeasures/roadbed分类
交通工程引用本文复制引用
李青海,李胜威,米维军,董添春,程佳..多年冻土区热融湖塘状态及侵蚀路基病害防治措施[J].科技创新与应用,2024,14(23):110-113,4.基金项目
中国铁路青藏集团有限公司科技研究开发计划(QZ2022-G04) （QZ2022-G04）
中国中铁股份有限公司科技研究开发计划(实用技术2022-重点-14) （实用技术2022-重点-14）
中国国家铁路集团有限公司科技研究开发计划(K2022G107) （K2022G107）
