徐州工程学院学报(自然科学版)2023,Vol.38Issue(4):68-76,9.
冻结法施工中渗流场对温度场的影响分析
The Influence of Seepage Field on Temperature Field in Freezing Method Construction
摘要
Abstract
For the influence of seepage on the freezing effect during the construction of the subway,the finite element software is used to simulate the actual arrangement of the freezing pipe with Nanjing Metro Line 3 as the engineering background to investigate the influence of seepage field on the temperature field.The results show that:when there is a head difference,the isothermal map surrounded by different temperatures will be offset with the direction of the head difference,and finally the isothermal line is no longer symmetrical distribution,and the larger the head difference,the higher the degree of asymmetry of the isothermal line,but the effect of the head difference on the temperature field will be weakened with the increase in the distance from the freezing pipe;the seepage direction of the freezing effect also has a certain impact,and therefore the actual project should control the seepage direction and the arrangement of the freezing pipe.Therefore,in the actual project,the direction of seepage should be controlled to be consistent with the direction of freezing pipe arrangement to strengthen the final freezing effect.关键词
渗流场/水头差/温度场/冻结帷幕Key words
seepage field/head difference/temperature field/freezing curtains分类
交通运输引用本文复制引用
宋帅,姜艳,尹文纲..冻结法施工中渗流场对温度场的影响分析[J].徐州工程学院学报(自然科学版),2023,38(4):68-76,9.基金项目
国家重点研发计划重点专项项目(2019YFC0605104) (2019YFC0605104)