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| Methods and Technology for Active and Passive Temperature Control of Frozen Soils |
| WEI Zhi1，JIN Hui-jun1，ZHANG Jian-ming1，WU Jin-kui2,YANG Si-zhong1,JI Yan-jun3 |
| 1. State key Laboratory of Frozen Soils Engineering, Cold and Add Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences and China Forestry Administration, Lanzhou, Gansu 730000，China; 2. Hydrology and Ecology Laboratory of Watershed, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences and China Forestry Administration, Lanzhou, Gansu 730000，China; 3. Gansu Electric Power Design Institute, Lanzhou, Gansu 730000，China |
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Abstract Research purposes: Frozen ground temperature changes will cause complex changes in seepage，temperature and stress fields. Active and passive temperature controls are the basic methods for frozen soils temperature control. But it is difficult to distinguish the active and passive concepts, so it is important to clarify the essential difference between active technology and passive technology for temperature control of frozen soil.
Research conclusions: From the viewpoint of energy, the passive temperature requires no power and no moving mechanical parts during operation, which is the most commonly used technology for frozen soils temperature control. On the contrary, the active temperature control requires power to operate or has moving parts in temperature control system. The most distinct features of the two methods are that whether the freezing process can be controlled and whether need any support to energy consumption. For some calculation of frozen soils temperature control, there are a lot of formulas and charts obtained in long time, which can be used, but if it wants a more precise calculation, it needs simulation with some mature models.
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Received: 26 August 2008
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[1]Krzewinski T. G.，Tart R. G. . Thermal design considerations in frozen ground engineering [ M ] . American society of civil engineering, 1985,72-154.
[2]徐学祖，王家澄，张立新.冻土物理学[M].北京:科学 出版社，2001:283-291.
[3]程国栋，孙志忠，牛富俊.“冷却路基”方法在青藏铁路 上的应用[J].冰川冻土，2006, 28(6);797-808.
[4]马巍，吴青柏，程国栋.青藏铁路块石气冷结构路堤下冻 土温度场变化分析[J].冰川冻土，2006, 28(4):586- 595.
[5]马巍，程国栋，吴青柏.多年冻土地区主动冷却地基方 法研究[J].冰川冻土，2002,24(5):579-587.
[6]金会军，马巍，赖远明，等.气候变暖条件下.中(高)亚 洲地区不稳定型冻土的巨大挑战和创新解决—来自首 届亚洲冻土大会及会后青藏高原考察的总结报告[J]. 冻川冻土，2006, 28(6):838-842.
[7]孙立平.青藏铁路多年冻土区热棒的施工技术[J].冰 川冻土，2007, 29(1):39-44.
[8 ] Zarling J. P.，Haynes F. D. Performance of a thermosphyon with an inclined evaporator and vertical condenser [ C ] . Proceeding of the Third International Offshore Mecanics and Arctic Engineering Symposium, American Society of Mechanical Engineers(ASME)，1984.
[9]庄骏，张红.热管技术及其工程应用[M].北京:化学工 业出版社，2000:28 -40.
[10] Nixon J. F. Active freezing techniques[R].United States; Technical Council on Cold Regions Engineering of the American Society of Civil Engineers, 1985.
[11]俞祁浩，程国栋，牛富俊.自动温控通风路基应用效果 分析[J].岩石力学与工程学报，2004,23(24):4221- 4228.
[ 12 ] Nixon J. F..Geothermal aspects of ventilated pad design [C]. Proc. 3rd intl. permafrost Conf.，Edmonton:841- 846.
[13]程国栋，赖远明，孙志忠，等.碎石层的“热半导体”作用 [J].冰川冻土,2007,29(1):1-7.
[14]杨丽君，孙斌祥，刘琦，等.碎(块)石路堤孔隙空气对流 运动的Darcy定律适用性[J].冰川冻土，2007, 29(1):8-15.
[15]孙斌祥，徐学祖，赖远明，等.青藏高原铁路多年冻土路 堤的碎石层高度[J].工程力学，2006, 23 (6 ) :127-134.
[ 16 ] Dechow F. J.，Epstein K. A..Laboratory and field investigations of moisture absorption and its effects on thermal performance of various insulation[R ]. Thermal transmissions measurements of insulation, ASTM, 1978: 234-260.
[17 ] Hedlin C. P. Moisture gains by foam plastic roof insulations under controlled temperature gradients [J] . Journal of Cellular Plastics, September/October, 1977,313-319.
[18 ] Tobiasson W.，Richard J. Moisture gain and its thermal consequences for common roof insulations [ C ]. Proceedings 5th Conference on Roofing Technology, April, 1979.
[19] Kaplar C. W. Moisture and Freeze-thaw effects on rigid insulations [ R ] . CRREL Technical Report 249, April, 1974.
[20]Clarke E. S.，rzewinski T. K.，Metz M. C. The trans-Alaska pipeline system synthetically insulated workepad- An evaluation of present conditions [ J ] . Journal of Energy Resoruces Technology, 1983 , 105 :230-235.
[21] Liu Zhiqiang, Lai Yuanming. Numerical analysis for the ventilated embankment with thermal insulation layer in Qing -Tibetan railway[J]. Cold Regions Science and Technology, 42 ( 2005 ) ;177-184.
[22]汪双杰，陈建兵，章金钊.保温护道对冻土路基地温特 征的影响[J].中国公路学报，2006, 19(1); 12-14.
[23]Nixon J. F.，Mcroberts E. C. . A study of some factors af- feeling the thawing of frozen settlement[J ]. Canadian Geotechnical Journal, 1973, 10:439-452.
[24]Nixon J. F. Geothermal design of insulated foundations for thaw prevention [ C ].Proceedings of the fourth international conference on permafrost, National Academy Press, 1983, 1:924-927.
[25]徐学祖，奥利奋特J.L，泰斯A. R..土水势、未冻水含 量和温度[J].冰川冻土，1985,7(1);1-14.
[26]Weaver J. S.，Morgenstern N. R. Pile design in perma- frost[ J ] . Canadian Geotechnical Journal , 1981,18 :357- 370.
[27]吴亚平，舒春生，马巍等.冻土中钢管桩荷载传递函数 曲线研究[J].冰川冻土，2007, 29(1):21-25.
[28]Linell K. A.，Lobacz E. F. Design and construction of foundations in areas of deep seasonal frost and permafrost [R]. CRREL, 1980, Special report: 34-80.
[29]Jahna H. o.，Heuer C. E.. Frost heave mitigation and permafrost protection for a buried chilled gas pipeline [ C ] . Proceedings of the Fourth International Conference on Permafrost, National Academy Press, 1983, 1;531-536.
[ 30 ] Lunardini V. J. theory of N-factors and correlation of data [ C ] . Proceedings of the third international conference on permafrost, National Research Council of Canada, 1978:41 -46.
[31]Miller T. W. The surface heat balance in simulations of permafrost behavior[1]. Journal of Energy Resources Technology, 1979, 101: 240-250.
[ 32 ] John F.，Nixon J.. F. Active freezing technology[R]. New York, US, American Society of Civil Engieeris, 1985.
[33]赖远明，邓学钧.地层冻结技术综述[J].东南大学学 报，2000, 30(6):163-170.
[ 34 ] Harlan R.，Nixon J. Ground thermal regime [ M ] . 1978 , Ed. By Andersen and Anderslad. McGraw-Hill, N. Y.
[35] Takashi T.，Ohrai T.，Yamamoto H. Upper limit of heav- ing Pressure derived by Pore-water pressure measurements of partially frozen soil[J ] . International Journal of Rock Mechanics and Mining Science & Geomechanics Abstracts, 1982, 19(3):57.
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2008, Vol. 25 
