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Temperature monitoring of the XPS board insulated subgrade along the newly constructed Gonghe-Yushu Highway in permafrost regions |
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| Authors: | BoWen Tai JianHong Fang Lei Liu AnHua Xu JianKun Liu and YaHu Tian |
| Institution: | School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China;Institute of Communications Science, Qinghai Province, Xining, Qinghai 810008, China;Institute of Communications Science, Qinghai Province, Xining, Qinghai 810008, China;Institute of Communications Science, Qinghai Province, Xining, Qinghai 810008, China;School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, ChinaInstitute of Communications Science, Qinghai Province, Xining, Qinghai 810008, China;School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China |
| Abstract: | 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. |
| Keywords: | permafrost highway XPS insulation board ground temperature |
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