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为了使整体结构模型光弹试验得到必要的精确实验结果，本文结合水利工程中应力 研究的需要，介绍了微小初应力的复杂整体模型的铸形，温度控制和粘接技术，在５０ × ２３ × ２０ｃｍ的多孔洞复杂模型中得到材料初应力及粘接初应力均小于０．１级／ｃｍ厚的良 好效果。 本文第二部分介绍了一种能够对复杂整体模型在高温下模拟水压载荷的机械传力系 统。实测系统传力损失＜６‰，并通过楔形传力块使作用力重分布在整体模型（拱坝） 上游面得到和水压很相似的压力分布。 本文最后也介绍了用一个模型的切片、切条来确定空间六个应力分量的实用观测计 算方法。
In order to get the necessary and accurate experimental results for the photoelastic test of the whole structural model, this paper introduces the casting, temperature control and bonding technology of the complex monolithic model with small initial stress based on the needs of stress research in water conservancy project. 20cm multi-hole complex model obtained initial stress and bonding initial stress are less than 0.1 / cm thick good results. The second part of this article presents a mechanical force transfer system that simulates hydraulic loads at high temperatures for complex monolithic models. The measured transmission force loss of the system is less than 6 ‰, and the pressure distribution similar to water pressure is obtained through the wedge-shaped force transfer block, which redistributes the forces on the upstream face of the overall model (arch dam). At the end of this paper, we also introduce a practical method for calculating the six stress components of a space by using a slice of a model and cutting a bar.