拓展了传统的光弹性应力冻结法，确立了三维有限变形光弹性的物理和实验基础。
The traditional photoelastic stress-freezing method is extended in this paper in which the physical and experimental bases for THR three-dimensional finite deformation photoelasticity are established.
主应力分离是光弹性应力分析的关键问题，但已往所用的方法都比较繁琐。
The key of photoelastical stress analysis is separating main stress, but the methods which we have used before are complicated.
通过对埋设于570中段光弹性应力计的观测，分析了该中段矿柱破坏的情况及原因。
The cause of mine pillar destruction in in Dachang Tongkeng Tin Mine was analyzed from observation by photoelastic stressmeter embedded in mine stope 570.
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