Analysis of temperature field characteristics based on subgrade site measurements of Harbin-Qiqihar High-speed Railway in a deep seasonal frozen soil region  

作　　者：ZuRun Yue BoWen Tai TieCheng Sun 

机构地区：[1]Graduate School, Shijiazhuang Tiedao University [2]School of Civil Engineering, Shijiazhuang Tiedao University [3]School of Civil Engineering, Beijing Jiaotong University

出　　处：《Research in Cold and Arid Regions》2015年第5期547-553,共7页寒旱区科学（英文版）

基　　金：supported by the scientific research test of China Railway Corporation(Z2013-038);the National Natural Science Foundation of China(Nos.51208320 and 51178281);the Key Subject of China Railway Corporation(Nos.2014G003-F and 2014G005)

摘　　要：Recent years have seen a large number of high-speed railways built and will be built in seasonal frozen soil regions ot China. Although high-speed railways are characterized by being fast, comfortable and safe, higher standards for defor- mation of the railways＇ frozen subgrade are required. Meanwhile, changes in subgrade soil temperatures are the main factors affecting the deformation of frozen subgrade. Therefore, this paper selected typical test subgrade sections of the Harbin-Qiqihar Line, a special line for passenger transport built in the deep seasonal frozen soil regions of China, to monitor field temperatures. Also, the temperature changing laws of railways＇ subgrade in this region was analyzed by using testing data, the aim of which is to provide a technical support for future design and construction of buildings and structures in a deep seasonal frozen soil region.Recent years have seen a large number of high-speed railways built and will be built in seasonal frozen soil regions ot China. Although high-speed railways are characterized by being fast, comfortable and safe, higher standards for defor- mation of the railways＇ frozen subgrade are required. Meanwhile, changes in subgrade soil temperatures are the main factors affecting the deformation of frozen subgrade. Therefore, this paper selected typical test subgrade sections of the Harbin-Qiqihar Line, a special line for passenger transport built in the deep seasonal frozen soil regions of China, to monitor field temperatures. Also, the temperature changing laws of railways＇ subgrade in this region was analyzed by using testing data, the aim of which is to provide a technical support for future design and construction of buildings and structures in a deep seasonal frozen soil region.

关 键 词：temperature field deep seasonal permafrost soils railways SUBGRADE 

分 类 号：U213.14[交通运输工程—道路与铁道工程]