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《Journal of Glaciology and Geocryology》 2012-02
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Experimental Study of Convective Characteristics of Block-Stone Embankment

YU Qi-hao1,QIAN Jin1,2,YOU Yan-hui1,HU Jun1,GUO Lei1(1.State Key Laboratory of Frozen Soil Engineering,Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences,Lanzhou Gansu 730000,China;2.Sichuan Communication Surveying & Design Institute,Chengdu Sichuan 610017,China)  
Active cooling embankment made of block-stone in permafrost regions is an important engineering measure,which has been widely used in national key projects,such as Qinghai-Tibet Railway.So it is great significant to study air flow characteristics for its structural optimization and performance improvement,and air flow characteristics in block-stone due to temperature difference and micro wind speed are always the problems that need to be solved.In this study,air flow characteristics in block-stone are got at the first time by high-precision macro wind-speed detector.It is found that the cooling process is closely related to the process of natural convection in block-stone in the condition of boundary temperature fluctuating and rapidly completing in the convective process;warming-up process is largely aroused by the heat conduction,which results in asymmetry of the temperature curve,and becomes obvious with depth increasing;however,the convective process exists only in the processes of fast cooling stage and cooling stagnation stage;temperature difference in block-stone is the key control factor of the convection and its intensity;when temperature difference reaches a certain value,convective velocity increases with temperature difference,meanwhile the change of air temperature also have an impact on the air flow process.Air flow process in block-stone is a transfer process.The experimental results have a great significance for further understanding the cooling mechanism,improving this measure and selecting the relevant simulation parameters,effectively applying to high-grade highway construction in permafrost regions as well.
【Fund】: 中国科学院西部行动计划项目(KZCX2-XB2-10);; 国家自然科学基金项目(41171059)资助
【CateGory Index】: U213.14
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【Citations】
Chinese Journal Full-text Database 10 Hits
1 YU Wen-bing, LAI Yuan-ming, ZHANG Xu-fu, XIAO Jian-zhang,NIU Fu-jun, ZHANG Shu-juan 730000, China);Experimental Study on the Cooling Effect of Block Stone and Crushed Stone[J];Journal of Glaciology and Geocryology;2003-06
2 CHENG Guo-dong (State Key Laboratory of Frozen Soils Engineering, CAREERI, CAS, Lanzhou Gansu 730000, China);Constructing of the Qinghai-Tibet Railroad Using the Principle of Cooling the Roadbed[J];Journal of Glaciology and Geocryology;2005-01
3 SUN Yong-fu (The Ministry of Railway, PR China, Beijing 100844, China);Permafrost Engineering in the Qinghai-Tibet Railway: Research and Practice[J];Journal of Glaciology and Geocryology;2005-02
4 LAI Yuan-ming, ZHANG Ming-yi, YU Wen-bing, GAO Zhi-hua (State Key Laboratory of Frozen Soil Engineering, CAREERI, CAS, Lanzhou Gansu 730000, China);The Influence of Boundary Conditions on the Cooling Effect and Mechanism of Ripped-rock Layers[J];Journal of Glaciology and Geocryology;2005-02
5 LAI Yuan-ming, ZHANG Ming-yi, YU Wen-bing, LI Shuang-yang(State Key Laboratory of Frozen Soil Engineering,CAREERI,CAS,Lanzhou Gansu 730000,China);Laboratory Study of Particle Size for Optimal Cooling Effect of Closed Crushed-rock Layers[J];Journal of Glaciology and Geocryology;2006-05
6 CHENG Guo-dong1,LAI Yuan-ming1,SUN Zhi-zhong1,JIANG Fan2 (1.State Key Laboratory of Frozen Soil Engineering,CAREERI,CAS,Lanzhou Gansu 730000,China;2.The Institute of Engineering Thermal Physics,Chinese Academy of Sciences,Beijing 100080,China);On the "Thermal Diode" Function of Crushed Rock Layer[J];Journal of Glaciology and Geocryology;2007-01
7 NIU Fu-jun1,XU Zhi-ying1,GE Jian-jun2,FENG Wen-jie1,LIU Hua1(1. State Key Laboratory of Frozen Soil Engineering,Cold and Arid Regions Environmental and Engineering Institute,Chinese Academy of Sciences,Lanzhou Gansu 730000,China; 2. The First Survey and Design Institute ofChina Railways Group Co.,Ltd,Xi'an Shaanxi 710043,China);Engineering Effects of the Sunshine-shield Roadbed of the Qinghai-Tibet Railway in Permafrost Regions[J];Journal of Glaciology and Geocryology;2010-02
8 LI Jing-bo1,2,ZHAO Ai-guo3,YANG Yu-gui1,DONG Yuan-hong1(1. State Key Laboratory of Frozen Soil Engineering,Cold and Arid Regions Environmental and Engineering Research Institute,ChineseAcademy of Sciences,Lanzhou Gansu 730000,China; 2. College of Physics Science and Engineering Technology,Yichun University,Yichun Jiangxi 336000,China; 3. Key Laboratory of Desert and Desertification,Cold and Arid Regions Environmental andEngineering Research Institute,Chinese Academy of Sciences,Lanzhou Gansu 730000,China);Experimental Study of Non-Darcy Effects of Ventilative Crushed-Rock Layer[J];Journal of Glaciology and Geocryology;2010-02
9 WU Qing-bai,CUI Wei,LIU Yong-zhi(State Key Laboratory of Frozen Soil Engineering,Cold and Arid Regions Environmental Engineering Research Institute,Chinese Academy of Sciences,Lanzhou Gansu 730000,China);The Cooling Effect of U-Type Crushed Rock Embankment on Permafrost[J];Journal of Glaciology and Geocryology;2010-03
10 CUI Wei,WU Qing-bai,LIU Yong-zhi(State Key Laboratory of Frozen Soil Engineering,Cold and Arid Regions Environmental and Engineering Research Institute,Chinese Academy of Science,Lanzhou Gansu 730000,China);The Thermal Effect of a Thermokarst Lake on Permafrost[J];Journal of Glaciology and Geocryology;2010-04
【Co-citations】
Chinese Journal Full-text Database 10 Hits
1 ZHANG Jian-ming, SHENG Yu, LAI Yuan-mingansu 730000, China);Experimental Study on Thermal Conductivity of Railway Ballast[J];Journal of Glaciology and Geocryology;2003-06
2 XU Xiao-zu ~(1,2),SUN Bin-xiang~(1,2),LAI Yuan-ming~(1),LIU Qi~(1,2), WANG Shuang-jie~(3),ZHANG Jin-zhao~(3)nsu 730000, China; 2.Institute of Architectural Technology, Department of Civil Engineering, Shaoxing University of Arts and Sciences, Shaoxing Zhejiang 3120003, China; 3.The First Highway Survey, Design and Research Institute, Chinese Communication Board, Xi'an Shaanxi 710064, China);Study on the Long-Term Effects of Ballast Embankment of the Qinghai-Tibet Railway[J];Journal of Glaciology and Geocryology;2004-01
3 SUN Zhi-zhong, MA Wei, LI Dong-qing ansu 730000, China);Experimental Study on Cooling Effect of Air Convection Embankment with Crushed Rock Slope Protection in Permafrost Regions[J];Journal of Glaciology and Geocryology;2004-04
4 LAI Yuan-ming,ZHANG Ming-yi,YU Wen-bing,GAO Zhi-hua 0000, China);Experimental Study on the Cooling Effect and Mechanism of Closed Ripped-Rock Embankment[J];Journal of Glaciology and Geocryology;2004-05
5 LAI Yuan-ming, ZHANG Ming-yi, YU Wen-bing, GAO Zhi-hua (State Key Laboratory of Frozen Soil Engineering, CAREERI, CAS, Lanzhou Gansu 730000, China);The Influence of Boundary Conditions on the Cooling Effect and Mechanism of Ripped-rock Layers[J];Journal of Glaciology and Geocryology;2005-02
6 LI Ning,\ WEI Qing-chao,\ WEI Jing(School of Civil Engineering and Architecture,Beijing Jiaotong University,Beijing 100044,China);Experimental Study of Air-Cooled Riprap Subgrade of Qinghai-Tibet Railway[J];Journal of Glaciology and Geocryology;2005-05
7 FENG Wen-jie, MA Wei(State Key Laboratory of Frozen Soil Engineering,CAREERI,CAS,Lanzhou Gansu 730000,China);An Experimental Study of the Effect of Awning along the Qinghai-Tibet Railway[J];Journal of Glaciology and Geocryology;2006-01
8 LI Hong-sheng~1, LIU Xiao-zhou~1, SHI Jun~2,ZHAI Wei~3, ZHANG Geng-yuan~2(1.Engineering Mechanics Department,Dalian University of Technology,Dalian Liaoning 116023,China;2.Shenyang Bureau of Water Resource,Shenyang Liaoning 110013,China;3.Xinmin Bureau of Water resource,Xinmin Liaoning 112000,China);Analysis of the Damage Causes due to Ice and Frost and Design of Drainage-Pumping Station against Ice and Frost[J];Journal of Glaciology and Geocryology;2006-01
9 CHEN Ji, SHENG Yu, CHENG Guo-dong(State Key Laboratory of Frozen Soil Engineering,CAREERI,CAS,Lanzhou Gansu 730000,China);Discussion on Protection Measures of Permafrost under the Action of Engineering from the Point of Earth Surface Energy Balance Equation in Qinghai-Tibetan Plateau[J];Journal of Glaciology and Geocryology;2006-02
10 MA Xiao-jie, ZHANG Jian-ming, ZHANG Ming-yi(1.State Key Laboratory of Frozen Soil Engineering,CAREERI,CAS,Lanzhou Gansu 730000,China;2.Graduate University of Chinese Academy of Sciences,Beijing 100039,China);In-situ Experiment on the Cooling Effect of Closed Ballast Layer on Permafrost on the Tibetan Plateau[J];Journal of Glaciology and Geocryology;2006-02
China Proceedings of conference Full-text Database 3 Hits
1 LI Guoyu~①LI Ning~(①②)NIU Fujun~①YU Wenbing~①SHI Lei~①BI Guiquan(①State Key Laboratory of Frozen Soils Engineering,CAREE,CAS,Lanzhou 730000)(②Institute of Geotechnical Engineering,Xi'an University of Technology,Xi'an 710048);STUDY ON THERMAL STABILITY FOR A NEW EMBANKMENT WITH OPEN COMPOSITE SLOPE PROTECTION IN WARM PERMAFROST REGIONS[A];[C];2007
2 FENG Minghai (Center for Project Design Appraisal,Ministry of Railways,Beijing 100844);CONSTRUCTION AND ENGINEERING GEOLOGY SITING FOR THE QINGHAI-TIBET RAILWAYFENG[A];[C];2008
3 Li Ning, Wei Qingchao (School of Civil Engineering and Architecture, Beijing Jiaotong University, Beijing 100044);DYNAMIC DESIGN AND TECHNOLOGY FOR SUBGRADE ENGINEERING IN PERMAFROST REGIONS OF QINGHAI-TIBET RAILWAY[A];[C];2005
【Secondary Citations】
Chinese Journal Full-text Database 10 Hits
1 Cheng Guodong (Cheng Kuotung ) , Tong Boliang (Lanzhou Institute of Glaciology and Cryopedology, Academia Sinica) Luo Xuobo (Department of mathematics and Mechanic's, Lanzhou University);TWO IMPORTANT PROBLEMS OF EMBANKMENT CONSTRUCTION IN THE SECTION OF MASSIVE GROUND ICE[J];Journal of Glaciology and Geocryology;1981-02
2 Yang Hairong ( Northwest Institute, Academy of Railway Sciences );The Roadbed Stability in Permafrost Region[J];Journal of Glaciology and Geocryology;1985-01
3 CHENG Guo\|dong, HE Ping (State Key Laboratory of Frozen Soil Engineering, CAREERI, CAS, Lanzhou Gansu 730000, China);Linearity Engineering in Permafrost Areas[J];Journal of Glaciolgy and Geocryology;2001-03
4 FENG Wen jie 1 , LI Dong qing 1 , MA Wei 1 ZHANG Lu xin 2 (1. State Key Laboratory of Frozen Soil Engineering, CAREERI, CAS, Lanzhou Gansu 730000, China; 2.Northwest Branch, Chinese Academy of Railway Sciences, Lanzhou Gansu 73;Influence of Climate Warming on Permafrost Table Studied with Different Models and Temperatures[J];Journal of Glaciolgy and Geocryology;2001-04
5 LIU Yong-zhi 1 , WU Qing-bai 1,2,ZHANG Jian-ming 1 , SHENG Yu 1 (1. State Key Laboratory of Frozen Soil Engineering, CAREERI, CAS, Lanzhou Gansu 730000, China; 2. Department of Earth Science, Nanjing University, Nanjing Jiangsu 210093, China);Deformation of Highway Roadbed in Permafrost Regions of the Tibetan Plateau[J];Journal of Glaciolgy and Geocryology;2002-01
6 HU Ze-yong,\ QIAN Ze-yu,\ CHENG Guo-dong,\ WANG Jie-ming (Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences LanzhouGansu 730000, China);Influence of Solar Radiation on Embankment Surface Thermal Regime of the Qinghai-Xizang Railway[J];Journal of Glaciolgy and Geocryology;2002-02
7 MA Wei,\ CHENG Guo\|dong,\ WU Qing\|bai (State Key Laboratory of Frozen Soil Engineering, CAREERI, CAS, Lanzhou Gansu 730000, China);Preliminary Study on Technology of Cooling Foundation in Permafrost Regions[J];Journal of Glaciolgy and Geocryology;2002-05
8 YU Wen\|bing, LAI Yuan\|ming, NIU Fu\|jun, ZHANG Xue\|fu, ZHANG Shu\|juan (State Key Laboratory of Frozen Soil Engineering, CAREERI, CAS, Lanzhou Gansu 730000, China);Temperature Field Features in the Laboratory Experiment of the Ventilated Railway Embankment in Permafrost Regions[J];Journal of Glaciolgy and Geocryology;2002-05
9 SHENG Yu~ 1,\ ZHANG Lu\|xin~ 2,\ YANG Cheng\|song~ 1,\ FANG Jian\|hong~ 3 (1.State Key Laboratory of Frozen Soil Engineering, CAREERI, CAS, Lanzhou Gansu 730000, China; 2.Resources and Environment School, Lanzhou University, Lanzhou Gansu 730000, C;Application of Thermal\|insulation Treatment to Roadway Engineering in Permafrost Regions[J];Journal of Glaciolgy and Geocryology;2002-05
10 YU Qi\|hao,\ LIU Yong\|zhi,\ TONG Chang\|jiang ( State Key Laboratory of Frozen Soil Engineering, CAREERI, CAS, Lanzhou Gansu 730000, China);Analysis of the Subgrade Deformation of the Qinghai-Tibetan Highway[J];Journal of Glaciolgy and Geocryology;2002-05
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