| 混凝土坝及其不均质岩基的光弹试验研究 |
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| 引用本文： | 刘光廷.混凝土坝及其不均质岩基的光弹试验研究[J].清华大学学报(自然科学版),1987(2). |
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| 作者姓名： | 刘光廷 |
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| 作者单位： | 水利工程系 |
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| 摘 要： | 为了用光弹方法了解混凝土坝及其不均质岩石基础内的应力分布，研究了用不同弹模１：１～１：１：１０材料粘接（粘接剂强度比模型材料大）来制作复杂的光弹模型。本文介绍了可以防止冻结过程中变弹模模型内因粘接产生残余应力（控制小于０．２级／ｃｍ厚）的特殊技术，也介绍其它基于相似律的不均质岩基的新模拟技术。
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| 关 键 词： | 混凝土坝 不均质岩石基础 光弹性 应力分布 稳定性 |
Photoelastic Study on the Stress Distribution in a Concrete Dam and its Heterogeneous Rock Foundation |
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| Liu Guangting et al.Photoelastic Study on the Stress Distribution in a Concrete Dam and its Heterogeneous Rock Foundation[J].Journal of Tsinghua University(Science and Technology),1987(2). |
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| Authors: | Liu Guangting |
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| Institution: | Liu Guangting et al Department of Hydraulic Engineering |
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| Abstract: | The stress distribution in a concrete dam and its heterogeneous rock foundation was studied by photoelastic method with complicated models made of materials with distinct moduli of elasticity ranging from 1: 1 1: 10 which were bonded together with adhesives (stronger than the model materials). A special technique of preventing the presence of adhesive risidual stresses in such a model (less than 0.2 fringes/cm thickness) during curing was introduced, and other useful new modeling techniques based on the law of similarity for heterogeneous rock foundation were adopted. |
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| Keywords: | concrete dam heterogeneous rock foundation photoelasticity stress distribution stability |
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