The recent advances in frozen soil mechanics are demonstrated and discussed from four aspects: (1) Test studies on the mechanical properties of the frozen soil; (2) Heat conductivity properties of the mixture materials of the freezing soil; (3) Water migration behaviors in the freezing soil; and (4) The Heat-Moisture-Deformation Coupling Models.
从冻结土的宏观力学性质,正冻土中的水、热迁移理论,正冻土的水热力耦合模型四个方面分析综述了国内外冻土力学的发展历史、研究现状与我国冻土力学研究中存在的问题,指出:(1)当前冻土力学的研究内容应该从对冻结上的宏观强度与变形性质向更切合实际工程需要的正冻土、正融土微、细观热、力学耦合性质方面深化;(2)冻土力学的研究思路应该从对土样纯力学量的试验研究向土样组构、级配、含水量、饱和度等土性指标在不同负温下对土样颗粒排列与胶结特性的强度、变形影响机理方面转移;(3)冻土力学的研究对象也应该从室内冻结试验的研究向具有各种不同水热交换边界条件与水热迁移内在规律的冻土体发展。
This paper summarizes the recent major progress and development directions in near future for the research on frozen soil mechanics of China.
概述了近几年来我国冻土力学研究取得的主要进展及今后的主要研究方向。
According to the artificial freezing engineering practice in deep alluvium and simulation tests, it is found that there exists an obvious difference between the mechanics of frozen soil for shallow alluvium and the mechanics of frozen soil for deep alluvium.
在人工冻结工程的实践和模拟试验的基础上,提出不同于常规“冻土力学”(暂称“浅土冻土力学”)的“深土冻土力学”概念。
The Mechanical Properties Tests in Deep Frozen Soil and Calculation of Frozenwall;
深土冻土力学性能试验研究及工程应用
Characteristics of Fly Ash and Soil Mechanics Experimental Study on Freezing Resistance
粉煤灰土力学特性及抗冻性试验研究
Mechanical properties of air-entrained concrete in freezing-thawing circumstance
冻融环境下引气混凝土力学性能研究
Mechanical Property Deterioration Model for Concrete in Environment with Freezing-thawing
冻融环境下混凝土力学性能退化模型
The Numerical Simulation of Stress Intensity Factor in Fracture Mechanics of Frozen Soil;
冻土断裂力学应力强度因子的数值模拟计算
Expperiment and Study on Influence of Freeze-Thaw Cyle on the Mechanics Behavior of Frostresistant Recycled Aggregate Concrete
冻融循环对抗冻再生骨料混凝土力学性能影响试验研究
Study on mechanical characteristics of reinforced concrete arc shaft wall in frozen shaft
冻结井钢筋混凝土弧形板井壁力学特性研究
Experimental Study on the Multi-axial Mechanical Behavior of Concrete after Freeze-Thaw Cycling or High Temperature;
冻融及高温后混凝土多轴力学特性试验研究
Experimental Study of the Freeze-Thaw Effects on Physical and Mechanical Properties of Soils;
冻融作用对土物理力学性质影响的试验研究
Experimental Research on the Strength and Frost Resistance of Recycled Concrete;
再生混凝土力学性能和抗冻耐久性试验研究
Experimental Study and Theoretical Analysis on the Mechanical Properties of Concrete after Freezing and Thawing
冻融循环后混凝土力学性能的试验研究
Research on Frozen-Thaw Behavior Affect the Mechanical Property of Chengdu Clay
冻融作用对成都粘土力学性质的影响研究
Electroseismic Effect of in Experiment and Applications Studies of Frozen Soil Dynamics Properties
震电效应在冻土动力学性质试验中的应用研究
Study of the Freeze-thaw Effects on Physical and Mechanical Properties of Subgrade Soils
冻融循环对路基土物理力学性质影响的研究
Mechanic analysis on the failure of bond behavior between concrete and steel bar when suffered from frost injury
钢筋与混凝土黏结性能冻融破坏的力学分析
Experimental study on effects of freezing and thawing on mechanical properties of clay
冻融作用对黏土力学性能影响的试验研究
Research status of dynamic properties of artificial frozen soil and its significance
人工冻土动态力学特性研究现状及意义
Site research on mechanism features of mine freezing shaft wall in thick clay stratum
厚粘土层冻结井壁力学特性的实测研究