| 多年冻土地区热管冷却路基数值分析 |
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| 引用本文： | 刘奉喜,刘建坤,郭大华,张鲁新. 多年冻土地区热管冷却路基数值分析[J]. 土木工程学报, 2004, 37(9): 41-47 |
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| 作者姓名： | 刘奉喜 刘建坤 郭大华 张鲁新 |
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| 作者单位： | 1. 中交公路规划设计院
2. 北京交通大学土木建筑工程学院 |
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| 基金项目： | 国家自然科学基金资助 (No 40 1 71 0 1 8) |
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| 摘 要： | 热管是一种利用液汽相的转换对流循环来实现热量传输的系统 ,是无源冷却系统中热量传输效率最高的装置 ;本文对采用热管冷却路基的方法进行数值模拟分析 ,对布设不同间距热管对路基冻土上限的影响进行了分析 ,得到了热管对冻土路基温度场影响的一般规律 ,并对确定热管布设间距的基本方法提出了建议。
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| 关 键 词： | 冻土 路基 热管 温度场 |
| 文章编号： | 1000-131X(2004)09-0041-07 |
| 修稿时间： | 2003-10-01 |
NUMERICAL ANALYSIS OF THERMOSYPHON IN PROTECTING THE ROADBED IN PERMAFROST |
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| Liu Fengxi Liu Jiankun Guo Dahua Zhang Luxin. NUMERICAL ANALYSIS OF THERMOSYPHON IN PROTECTING THE ROADBED IN PERMAFROST[J]. China Civil Engineering Journal, 2004, 37(9): 41-47 |
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| Authors: | Liu Fengxi Liu Jiankun Guo Dahua Zhang Luxin |
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| Affiliation: | Liu Fengxi1 Liu Jiankun2 Guo Dahua1 Zhang Luxin2 |
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| Abstract: | A thermosyphon is a heat transfer system based on the conversion and convection of vapor and liquid phases,that provide highest heat transmission efficiency. In this paper, the cooling effect of a two-phase thermosyphon system in protect ing the roadbed in permafrost region is analyzed numerically, and the influence of thermosyphon spacing on permafrost table is studied. The general pattern of i nfluence of thermosyphon on roadbed temperature regime is obtained and several p ractical recommendations are proposed for the determination of thermosyphon spac ing. |
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| Keywords: | permafrost roadbed thermosyphon temperature pattern |
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