负积温推求冰盖厚度的方法研究  

Method study of calculating ice sheet thickness by negative accumulated temperature

作　　者：侯倩文 吴博 HOU Qian-wen;WU Bo

机构地区：[1]松辽水利委员会流域规划与政策研究中心,吉林长春130021

出　　处：《东北水利水电》2024年第4期12-13,37,71,共4页Water Resources & Hydropower of Northeast China

摘　　要：本文通过低温模拟渠道结冰试验数据,对两种计算冰盖厚度的斯蒂芬模型和朱波夫模型分别进行了拟合,通过分析发现,拟合出的朱波夫模型计算冰盖厚度与实测冰厚数值更为接近,因此,对于南水北调工程冬季渠道的冰盖厚度,可使用朱波夫模型经验公式进行预测,以进一步计算冰盖膨胀力,防止膨胀力过大对渠道边坡稳定性造成威胁。In this paper,two kinds of ice sheet thickness calculation methods,Stephen model and Zhubov model,are fitted respectively by simulating the experimental data of freezing of the channel at low temperature.Through analysis,it is found that the ice sheet thickness calculated by Zhubov model is closer to the measured ice thickness value.Therefore,the ice sheet thickness of the channel in winter of the South-to-North Water Transfer Project can be predicted by using the empirical formula of Zhubov model.In order to further calculate the expansion force of the ice sheet and prevent the excessive expansion force from threatening the stability of the channel slope.

关 键 词：负积温 冰盖厚度 模型 

分 类 号：TV133[水利工程—水力学及河流动力学]