Temperature monitoring of the XPS board insulated subgrade along the newly constructed Gonghe-Yushu Highway in permafrost regions  

作　　者：BoWen Tai JianHong Fang Lei Liu AnHua Xu JianKun Liu Ya Hu Tian 

机构地区：[1]School of Civil Engineering, Beijing Jiaotong University [2]Institute of Communications Science,Qinghai Province

出　　处：《Research in Cold and Arid Regions》2015年第5期520-527,共8页寒旱区科学（英文版）

基　　金：supported by the National Key Basic Research Program of China 973 Project(No.2012CB026104);National Natural Science Foundation of China(No.41271072 and No.51378057);Service Performance Evaluation of the Subsidiary Structure in The Permafrost Regions of the Qinghai Tibet Plateau(2014-07-01)

摘　　要：On the basis of on-site measured data of the newly constructed Gonghe-Yushu Highway in a permafrost region, this paper analyzed thermal conditions of the subgrade with XPS insulated board according to different selected monitoring sections in various locations. We also summarized the geothermal distribution and change rules of subgrade with XPS insulation board under the asphalt pavement in summarized a high temperature frozen soil region. It is suggested that the shoulder of subgrade with XPS insulation board be widen to a reasonable width so as to keep the subgrade stable.On the basis of on-site measured data of the newly constructed Gonghe-Yushu Highway in a permafrost region, this paper analyzed thermal conditions of the subgrade with XPS insulated board according to different selected monitoring sections in various locations. We also summarized the geothermal distribution and change rules of subgrade with XPS insulation board under the asphalt pavement in summarized a high temperature frozen soil region. It is suggested that the shoulder of subgrade with XPS insulation board be widen to a reasonable width so as to keep the subgrade stable.

关 键 词：PERMAFROST HIGHWAY XPS insulation board ground temperature 

分 类 号：U416.1[交通运输工程—道路与铁道工程]