摘要
均质土坝坝体材料在冻融循环过程中,极易出现冻土上抬、冻胀开裂等现象,不可避免地对混凝土结构的稳定性和安全性构成威胁。本文通过对均质土坝上游迎水面混凝土盖板受冻胀土破坏产生的危害进行研究,分析冻胀土产生的机理和破坏性,提出防止措施,可为类似地区水工混凝土结构的设计和施工提供借鉴。
In the freezing and thawing cycle process of homogeneous earth dam materials, the phenomenon of frozen soil uplifting and frost heaving crack, etc. are easily produced, thereby inevitably threatening the stability and safety of concrete structures. The damage of homogeneous earth dam upstream face concrete cover plate by frost heave soil is studied in the paper, the meehanism and destructiveness of frost heave soil are analyzed, and preventive measures are put forward, which can provide reference for the design and construction of hydraulic concrete structure in similar areas.
作者
杨敏
李洪涛
李娜
YANG Min;LI Hongtao;LI Na(China Hydropower Foundation Co.,Ltd.,Tianjin 301700,China)
出处
《水利建设与管理》
2018年第9期38-42,共5页
Water Conservancy Construction and Management
关键词
冻胀土
迎水面混凝土盖板
均质土坝
破坏
机理
防治
frost heave soil
upstream face concrete cover plate
homogeneous earth dam
damage
mechanism
prevention and treatment
