...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Cold regions science and technology >A new ripraped-rock slope for high temperature permafrost regions
【24h】

A new ripraped-rock slope for high temperature permafrost regions

机译：高温多年冻土地区的新型裂石边坡

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Considering the strong wind condition in the Qinghai-Tibet plateau, the cooling effects of three traditional embankments were simulated taking into account the forced convection of air in porous media. The results showed that the traditional ripraped-rock slope cannot exploit the advantages of the thermal diode effect of the ripraped-rock slope to the full, and is not satisfactory in protecting the permafrost. Then a sunshade-blocking-wind ripraped-rock slope was suggested to gain better cooling effects and to overcome some specific problems that might occur in the Qinghai-Tibet Railway practice. The numerical simulations on the effect of the new measure proved that it would cool the underlying permafrost effectively and satisfactorily maintain the thermal stability of the Qinghai-Tibet Railway, and it would not encounter the problems that might happen to the traditional embankment, such as blocking of ripraped-rock by blown sands and snow, and the temperature difference between the south and north slopes.
机译：考虑到青藏高原的强风条件，考虑了多孔介质中空气的强制对流，模拟了三个传统路堤的降温效果。结果表明，传统的土石方边坡无法充分发挥土石方边坡的热敏二极管效应，对多年冻土的保护效果不理想。然后建议采用遮阴挡风的岩石边坡，以获得更好的冷却效果，并克服青藏铁路实践中可能出现的一些具体问题。对新措施效果的数值模拟证明，它将有效地冷却下伏的多年冻土，并令人满意地保持青藏铁路的热稳定性，并且不会遇到传统路堤可能发生的问题，例如阻塞吹沙和积雪吹碎的岩石，以及南北坡之间的温差。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号