CAJ | 학술논문

本文主要应用冻土耦合基本理论以及考虑冻土的流变性和非均质性，采用 ADINA 非线性有限元软件，根据模型试验的条件建立数值计算模型并设立计算边界条件，分析了非均质冻结壁冻结温度场、水分场和冻结应力场的发展特性，结果表明：①各圈管不同位置冻结主面温度呈现不同的分布形式；②温度梯度是影响水分迁移的主要因素；③冻土的冻结应力在冻结管处最大，在冻结管的两侧呈抛物线形状衰减趋势。
본문주요응용동토우합기본이론이급고필동토적류변성화비균질성，채용 ADINA 비선성유한원연건，근거모형시험적조건건립수치계산모형병설립계산변계조건，분석료비균질동결벽동결온도장、수분장화동결응력장적발전특성，결과표명：①각권관불동위치동결주면온도정현불동적분포형식；②온도제도시영향수분천이적주요인소；③동토적동결응력재동결관처최대，재동결관적량측정포물선형상쇠감추세。
According to the basic theory of coupling effect and considering the rheology and heterogeneity of frozen soil, the paper which used ADINA nonlinear finite element software to set up numerical calculation model and the boundary conditions has analyzed the development characteristics of temperature field、moisture field and freezing stress field in Non - homogeneous freeze wall, the results show that: ①The freezing temperature of main plane in different place of the couple has different distri_bution forms; ② temperature gradient is the main factors to af_fect moisture migration; ③ the freezing stress in the frozen pipes is the biggest and on both sides of freeze pipes the freezing stress show attenuation trend with a parabolic shape.