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| ANALYSIS ON MEASUREMENT RESULT OF PROBES IN FENGHUOSHAN AREA OF QINGHAI-TIBET PLATEAU |
| Li Yongqiang1，Han Longwu1，Cui Long2，Jia Haifeng1 |
| (1Northwest Research Institute，China Railway Engineering Corporation， Lanzhou 730000 China) (2Engineering Administration Center，Ministry of Railways， Beijing 100844 China) |
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Abstract The thermal probes，as a kind of effective method to protect permafrost actively，are used widely in Qinghai-Tibet railway and some other places with permafrost distributed. Some basic situations are presented about the thermal probes used in Fenghuoshan test subgrade of Qinghai-Tibet plateau，and analysis is made on its operation state and the change of ground temperature field around it. Finally，it is concluded that the thermal probes are effective to decrease the base temperature and to protect permafrost，and thus it can be used in permafrost regions.
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Received: 05 March 2003
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1 丁靖康. 冻土地区热桩技术的应用[R]. 兰州：中铁西北科学研究院，1990
2 章金钊，姚翠琴. 热棒在高原多年冻土地区的应用研究[A]. 见：青藏公路整治工程科研设计文献汇编[C]. 北京：交通部第一公路勘察设计院，1996
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2003, Vol. 22 
