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一、引言土体本构关系是在对金属材料本构关系研究成果的基础上发展起来的一个新的研究课题。土体的动力本构关系的研究是这一研究课题中的一部分。在20世纪40年代初期及其以后,人们系以弹性理论分析
I. INTRODUCTION The soil constitutive relation is a new research topic developed on the basis of research results on the constitutive relations of metal materials. The study of the dynamic constitutive relations of soil is part of this research topic. In the early 1940s and beyond, people were analyzed by elasticity theory.