摘要
冻土地温控制的基本措施可分为主动和被动两类,但对主动和被动措施如何准确划分,目前在国内外并不一致。国外普遍从能量的观点来进行划分,被动地温控制措施在运行期间不需人为提供动力,也没有任何持续运动的机械部件,是冻土地温控制最常用的技术,尤其是在大型工程中使用更为广泛;而主动地温控制措施,需要动力支持或温控系统中有持续运动的部件。两种措施最显著的区别在于对冻结过程的人为可控制性和是否提供能量消耗。
The basic control measures for ground temperature in permafrost regions can be active and passive,but the exact criteria for classification between active and passive measures is not uniform in China at present.They are normally classified from energy point at abroad.Passive measure for ground temperature control does not require man power or any constant driving mechanical part during operation,which is the most commonly used technique for frost earth temperature control,especially further widely used in large-scale engineering.While the active control measure requires drive support or constant driving part in temperature control system.The obvious difference between these two measures lies in manual controllability and energy consumption during freezing process.
作者
魏智
金会军
韩旭军
WEI Zhi;JIN Hui-jun;Han Xu-jun(Environmental&Engineering Research Institute for Lanzhou Frost Areas and Drought Areas,Chinese Academy of Sciences,National Key Laboratory for Frozen Earth Engineering,Lanzhou 730000,China;Baiyin Survey&Design Institute of water Resourses and Electric Power,Baiyin 730900,Gansu,China;Northwest University for Nationalities,Lanzhou 730000,China)
出处
《路基工程》
2010年第2期4-6,共3页
Subgrade Engineering
基金
中国科学院知识创新工程重要方向项目(KZCX-YW-311)
中国科学院"百人计划"项目(2004407)
中国石油天然气集团公司技术开发项目
中国科学院西部行动计划(二期)项目(KZCX2-XB2-09)
关键词
冻土
地温控制
被动技术
主动技术
frost earth
ground temperature control
passive technique
active technique
