摘要
对冻土期水工混凝土冻融变化特征进行试验观测。试验观测结果表明:在冻融初始阶段,膨胀量随着时间递增而逐步较大,当进入缓冻时期,其冻融膨胀量区域稳定变化。冻土含水率和膨胀率相关系数可达到0.80以上,具有较好的线性相关度。含水率的变化是冻融膨胀变化的主要影响因素。
Experimental observations were made on the freeze-thaw characteristics of hydraulic concrete during the frozen soil period.The experimental observation results show that at the initial stage of freezing and thawing,the swelling volume increases gradually with time.When entering the slow freezing period,the swelling volume changes steadily.The correlation coefficient between moisture content and expansion rate of frozen soil can reach over 0.80,which has a good linear correlation.The change of moisture content is the main influencing factor of freeze-thaw expansion.
作者
赵波
ZHAO Bo(Liaoning Zelong Water Conservancy Industry Co.,Ltd.,Shenyang 110003,China)
出处
《黑龙江水利科技》
2021年第3期13-16,共4页
Heilongjiang Hydraulic Science and Technology
关键词
冻土期
膨胀变化特征
观测试验
含水率变化
水工混凝土
frozen soil period
swelling change characteristics
observation test
moisture content change
hydraulic concrete.
