冻土地区三角形块石路基与水平块石路基的保冷效果研究(英文)
100 积分
50
评分
4.6 积分- 详情
- 2021-04-27
- 简介
pdf
- 530KB
- 页数 7P
- 阅读 101
- 下载 33
Time varying temperatures and pore-air velocities in two gravel embankments, horizontal and triangular gravel embankments, are studied using the “Rock-Block model” and the results are visualized in the form of isotherms and velocity vectors for different times of the year. Simulation results show that for both the two embankments there is a counter-clockwise rotation of pore-air extending throughout most of the embankment during winter months, whereas in summer the pore-air rotation changes to the opposite. The pore-air velocities in the triangle gravel embankment are somewhat higher than those obtained from the horizontal gravel embankment. The stronger convection in winter enhances the upward transport of heat out of the triangle gravel embankment, thus having more apparent cooling effect than the horizontal gravel embankment. During summer months, the pore-air velocities are nearly the same for both the two embankments. The results of the present study show that though the two gravel embankments have the effect of cooling the permafrost beneath, the temperature fields in the triangle gravel embankment are a little lower and more stable compared with those gotten from the horizontal gravel embankment, showing that the triangle gravel embankment has more apparent cooling effect than the horizontal one.
对不起，您暂无在线预览权限，如需浏览请
立即登录热门商品
wilsonw***
擅长:
土建 装饰 园林 电气
- 4.0
服务
- 4
商品
- 216
人气
相关推荐
冻土地区三角形块石路基与水平块石路基的保冷效果研究(英文) 530KB
手摆块石路基施工 14KB
手摆块石路基施工 18KB
片块石路基在高温多年冻土区降温效果研究 247KB
高原多年冻土区块石路基施工技术问题探讨 199KB
青藏铁路多年冻土区块石路基碎石护坡工程效果研究 387KB
片块石路基首件工程施工方案 111KB
青藏铁路北麓河试验段块石路基与普通路基的地温特征 695KB
青藏公路多年冻土区片、块石路基试验工程及应用研究 1.5MB
填石路基 12KB