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冻土工程分类,是在综合分析冻土的内在规律的基础上,并考虑与建筑物基础的相互联系,按其工程性质的好坏,将冻土人为地分成若干个等级。它对于工程地质勘测和设计工作都有一定的指导意义。近年来,许多生产部门及研究单位对冻土工程分类做了工作,并根据我国的特点,提出了自己的分类。我所于1967年就开展了冻土分类的研究工作,表1是以笔者在1971年提出的分类为基础,并综合我室1972年前历年室内外物理力学试验资料扩充而成的。
The permafrost classification is based on a comprehensive analysis of the inherent laws of permafrost and considering the interrelationship with the foundation of the building. According to the nature of the project, the permafrost is divided into several grades. It has certain guiding significance for engineering geological survey and design work. In recent years, many production departments and research institutes have done their work on the classification of permafrost engineering and put forward their own classification according to the characteristics of our country. My research work on the classification of frozen soil started in 1967. Table 1 is based on the classification proposed by the author in 1971 and expanded from the laboratory physical and chemical test data of the past two years before 1972 in our country.