文档介绍：安徽农业科学, Journal of Anhui Agri. Sci. 2008, 36( 9) : 3840- 3841, 3847
责任编辑
李玮
责任校对
李玮
内蒙古季节冻土区地基土冻胀性研究
银英姿
(内蒙古科技大学建筑与土木工程学院, 内蒙古包头 014010)
摘要
我国国土面积约 50%地处季节冻土区, 大量的渠系水工建筑物由于基土不均匀冻胀而产生破坏。水工冻害已成为灌区工程管理
中亟待解决的问题。内蒙古河套地区是我国的四大灌区之一, 土体长期受到冻融循环使得渠道破坏严重。为此, 对内蒙古河套地区的
地基土冻胀性进行研究,找到其中的一些规律。
关键词
内蒙古; 季节冻土区; 冻胀性
中图分类号
S152. 2
文献标识码
A
文章编号
0517- 6611(2008) 09- 03840- 02
Study on the Froze- expand Performance of the Soil in Construction Ground in Seasonal Frost Region of Inner Mongolia
YIN Ying- zi
( College of Architecture and Civil Engineering, Inner Mongolia University of Science and Technology, Baotou, Inner Mongolia 014010)
Abstract
50% of area in Inner Mongolia is in seasonal frost region. Most water engineerswere destroyed due to the uneven froze-expand in
in water engineer was serious thing. Hetao Irrigation Area was one of biggest areas in China. Channels were destroyed because of long- term fros-t melt cycle.
So the study on the froze-expend performance of the soil of construction ground in seasonal frost region of Inner Mongolia was conducted.
Key words
Inner Mongolia;Seasonal frost area;Froze- expand performance
1
季节冻土冻结环境条件年 2 月上旬) : 气温下降, 冻结速率较大, 仅有水- 冰相变作
试验场位于黄河河套沉积平原区, 地势南高北低, 地面用, 冻深增长较快; 前期冻结速率年际间表现不同, 后期冻深
高程 1 037. 4~ 1 034. 4 m, 坡降 1/ 3 000~ 1/ 4 000, 土地较平整。接近最大值。拟稳定冻结阶段( 2 月中旬~ 下旬) : 上下边界
1. 1
气候条件