The 'thermal semi-conductor' effect of crushed rocks
文献类型：期刊论文
| 作者 | Cheng Guodong; Lai Yuanming; San Zhizhong; Jiang Fan |
| 刊名 | PERMAFROST AND PERIGLACIAL PROCESSES
 |
| 出版日期 | 2007-04-01 |
| 卷号 | 18期号:2页码:151-160 |
| 关键词 | crushed-rock layer Rayleigh-Benard convection chimney effect wind-forced convection global warming |
| 英文摘要 | Coarse rock layers are widespread in periglacial environments and can lower the temperature of underlying ground. We show that the cooling effect of closed and sloping rock layers is in the form of Rayleigh-Benard convection, while that of open and inclined rock layers is via the 'chimney effect' and wind-forced convection. Cooling has been observed in numerical simulations, laboratory models and field mock-up experiments. Coarse rocks were widely used in the construction of the Qinghai-Xizang Railroad and temperature monitoring of their performance indicates that they do have a cooling effect on embankments. The advantages of utilising such materials are many, including high efficiency, ease of installation, environmental friendliness and relatively low cost. It is recommended that they be used in engineering projects in sensitive permafrost areas as a cooling agent and/or a countermeasure against possible global warming. Copyright (C) 2007 John Wiley & Sons, Ltd. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Geography, Physical ; Geology |
| 研究领域[WOS] | Physical Geography ; Geology |
| 关键词[WOS] | BOUNDARY-CONDITIONS ; PERMAFROST AREAS ; POROUS LAYER ; EMBANKMENTS ; CONVECTION ; PLATEAU ; FLOW |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000247244200004 |
| 公开日期 | 2015-12-22 |
| 源URL | [http://ir.etp.ac.cn/handle/311046/106289]  |
| 专题 | 工程热物理研究所_中国科学院工程热物理所（论文库）_期刊论文（SCI） |
| 作者单位 | 1.Chinese Acad Sci, State Key Lab Frozen Soil Engn, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Gansu, Peoples R China 2.Chinese Acad Sci, Inst Engn Thermophys, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cheng Guodong,Lai Yuanming,San Zhizhong,et al. The 'thermal semi-conductor' effect of crushed rocks[J]. PERMAFROST AND PERIGLACIAL PROCESSES,2007,18(2):151-160. |
| APA | Cheng Guodong,Lai Yuanming,San Zhizhong,&Jiang Fan.(2007).The 'thermal semi-conductor' effect of crushed rocks.PERMAFROST AND PERIGLACIAL PROCESSES,18(2),151-160. |
| MLA | Cheng Guodong,et al."The 'thermal semi-conductor' effect of crushed rocks".PERMAFROST AND PERIGLACIAL PROCESSES 18.2(2007):151-160. |
入库方式： OAI收割
来源：工程热物理研究所
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