J. S. Lee’s pioneering contribution to Geomechanics:the 135th anniversary of J. S. Lee’s birth
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摘要: 中国学术界熟知李四光创立了地质力学,但学术界对该“地质力学”的理解还存差异,部分学者对李四光创立Geomechanics(地质力学)还存在疑问,导致对李四光学术贡献的理解存在偏颇,对李四光创立的“地质力学”和国际上使用的“geomechanics”属于同一术语还明显存在争议,这或多或少地影响地质力学(Geomechanics)术语的使用和该学科的发展。笔者在长期从事地质力学研究实践的基础上,通过对李四光地质力学著作(尤其是李四光1945年版的《地质力学之基础与方法》一书)的系统研读和分析,结合深入的调研分析,确认李四光不仅创立了地质力学(Geomechanics),而且对地质力学及构造变形力学分析有一系列开创性贡献,如提出主应力平面和主应力的概念;把摩尔圆引入构造变形力学分析;建立了广义胡克定律的解析表达式等。在此基础上,简要评述了李四光创立的地质力学,并简要回顾了地质力学的发展历史并展望其发展前景。该文在李四光诞辰135周年之际完成,以此纪念其对地质力学的开创性贡献。Abstract:
Objective The Chinese academic community is well known for J. S. Lee’s creation of geomechanics, but the academic community’s understanding of “geomechanics” is still different, and some scholars have doubts about J. S. Lee’s creation of geomechanics. As a result, the understanding of J. S. Lee’s academic contributions is biased, and there is also an obvious dispute whether J. S. Lee’s Geomechanics and geomechanics as used by the international community belong to the same term, which will more or less affect the use of geomechanics terms and the development of the discipline. Methods On the basis of long-term practice in geomechanics research, the author, through systematic study and analysis of J. S. Lee’s geomechanics works (especially J. S. Lee’s book entitled “Fundamentals and Methods of Geomechanics”, 1945 edition), combined with in-depth research and analysis. Results & Conclusion The author confirms that J. S. Lee not only founded geomechanics, but also made a number of groundbreaking contributions to geomechanics such as proposing the concept of principal stress plane and principal stress; introducing the Mohr’s circle into the analysis of structural deformation mechanics; establishing the analytical expression of the generalized Hooke’s law, etc. On this basis, the geomechanics established by J. S. Lee is briefly reviewed, and the development history and prospects of geomechanics are concisely summarized and envisioned. Significance This article was completed on the 135th anniversary of J. S. Lee’s birth to commemorate his pioneering contributions to geomechanics. -
图 1 三轴应力三轴摩尔圆图解(李四光,1945)
图中的参数描述参见文献李四光,1945
Figure 1. Diagram of triaxial Mohr’s circles (J. S. Lee, 1945)
The parameters in the figure are described in the literature (J. S. Lee, 1945).
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