郑州大学学报（工学版）2012，Vol.33Issue(2)：81-85,5.DOI:10.3969/j.issn.1671-6833.2012.02.020
高承压富含水层人工强制解冻温度场数值分析
Numerical Analysis of Artificial Thawing Temperature Field in High-confined Aquifer Reinforcement
摘要
Abstract
Liquefied nitrogen freezing replacement shield brushes tail in China is the first application in shield tunnel excavation. With Qingchun Road cross-river tunnel of Hangzhou as an example, this paper applies ADINA finite element calculation software to compute thermal field for artificial thawing 3-D model, studies thermal spatial distribution and the variation laws of temperature with time, and makes the sensitivity analysis for influence factors of thawing temperature field. Through the contrast analysis of numerical simulation and field measurement, we get the development regularity of artificial thawing temperature field; artificial thawing time is longer with the increase of thermal conductivity and the increase of heat capacity; the higher the circulation hot water temperature is, the shorter the time of thawing is shorter; artificial thawing time is longer with the increase of latent; which solves the problem of shield brushes tail replacement in high-confined aquifer.关键词
强制解冻/承压含水层/冻结壁/温度场/数值分析Key words
artificial thawing/ confined aquifer/ frozen soil wall/ temperature field/ numerical analysis分类
建筑与水利引用本文复制引用
陈成,杨平,张婷..高承压富含水层人工强制解冻温度场数值分析[J].郑州大学学报（工学版）,2012,33(2):81-85,5.基金项目
住房和城乡建设部科学技术项目(2009-K3-2) （2009-K3-2）
江苏省普通高校研究生科研创新计划项目(CX09S_015Z) （CX09S_015Z）
南京地铁有限公司科研项目(2011年度). （2011年度）
