摘要
高寒多年冻土地区公路工程与一般地区有较大的区别，多年冻土活动层直接控制着路基稳定性。通过对祁连山南坡刚察～江仓公路沿线现场调查，分析了路基沉陷、冻胀、道路翻浆、边坡滑塌和冰害等病害特征和成因，从施工技术、环境条件和成本出发，提出了适当提高路基高度、设置护坡、加强排水等措施。
Highway project in Alpine permafrost region is quite different with those in general areas. The permafrost active layer directly controls the stability of highway subgrade. According to the field investigation along Gangcha-Jiangcang Highway in the southern slope of Qilian Mountain, the characteristics and causes of subgrade settlement, frost heave, road boiling, slope slide, ice damage and other diseases are analyzed in this paper. Taken into considerations of the construction technology, environment conditions and construction cost, some measures are proposed such as appropriately increasing the height of the subgrade, setting slope protection, and strengthening drainage etc..
出处
《公路》
北大核心
2014年第7期75-78,共4页
Highway
基金
中国地质调查项目
项目编号1212011220971
关键词
多年冻土
路基沉陷
道路翻浆
特征
成因
措施
permafrost
subgrade settlement
road boiling
eharacteristics
causes
measures
