摘要
渠道衬砌的冻胀破坏是温度、水分、土质和冻胀力等因素共同作用的结果,是北方地区渠道的主要破坏形式。通过对大U形渠道的冻胀观测试验,对衬砌的气温、地温,渠基土的含水率、冻深以及衬砌的冻胀变形量等实验数据统计比较,分析了渠道衬砌的主要破坏时段和破坏部位的分布规律及其形成原因,提出了相应措施,为进一步完善渠道衬砌冻害机理的理论研究提供了科学依据。
The frost heaving damage is main damage form of lining channel in north China, which is an integrative result of temperature, water content, soil characteristic and frost force. The paper compared the relationship of the damage factor of lining channel including local temperature, ground temperature in different depth, water content and frozen depth of foundation soil and frozen heaving deformation after the prototype observation test of frozen heaving damage in U-shape channel, analyzed the main damage period and the distribution rule of damaged position of U-shape channel, and explaining the reason of these causes. The conclusion could provide some science basis for the research of this problem in future.
出处
《灌溉排水学报》
CSCD
北大核心
2006年第2期8-11,共4页
Journal of Irrigation and Drainage
关键词
冻土
渠道
冻胀破坏
原型观测试验
frozen soil
channel
frozen heaving damage
prototype observation test
作者简介
陈涛（1969-）,男,内蒙古清水河人,高级工程师,在职博士研究生.
