| 软岩流变模型实验相似准则的推演及应用 |
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| 引用本文： | 王永岩,李媛.软岩流变模型实验相似准则的推演及应用[J].辽宁工程技术大学学报(自然科学版),2012,31(3):354-357. |
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| 作者姓名： | 王永岩 李媛 |
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| 作者单位： | 1. 青岛科技大学机电工程学院,山东青岛266061;中国矿业大学深部岩土力学与地下工程国家重点实验室,北京100083
2. 青岛科技大学机电工程学院,山东青岛266061;青岛农业大学建筑工程学院,山东青岛266109 |
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| 基金项目： | 国家自然科学基金资助项目(51074094) |
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| 摘 要： | 为了解决室内围岩力学特性测试周期长、效率低,难以为进展中的工程支护提供及时、准确地科学指导问题,利用相似理论量纲分析法导出软岩模型试验中模型和原型应满足的相似准则,得出软岩模型试验中弹性阶段、屈服阶段、流变及应力松弛过程中模型与原型的各个物理量间必须满足的相似关系.结果表明:选用合适的相似材料不仅可模拟软岩的流变特性,还可得到原型试验和模型试验大的时间比.为探索简便、快速、高效的测试软岩流变特性的新方法提供了重要的理论依据.
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| 关 键 词： | 软岩 模型试验 流变 相似比 相似准则 量纲分析 物理量 时间比 |
Deduction and application of similarity criteria in soft rock rheological model experiment |
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| WANG Yongyan
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LI Yuan.Deduction and application of similarity criteria in soft rock rheological model experiment[J].Journal of Liaoning Technical University (Natural Science Edition),2012,31(3):354-357. |
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| Authors: | WANG Yongyan LI Yuan |
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| Institution: | 1,3(1.College of Electrical and Mechanical Engineering,Qingdao University of Science and Technology,Qingdao 266061,China;2.State Key Laboratory for GeoMechanics and Deep Underground Engineering,China University of Mining & Technology,Beijing 100083,China; 3.Institute of Civil Engineering,Qingdao Agriculture University,Qingdao 266109,China) |
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| Abstract: | In order to overcome the problems of long delay and low efficiency of indoor testing on rock properties and provide a timely and accurate scientific guidance to safe rock support on site,the similarity criteria that must be satisfied by the model and prototype in soft rock model test are derived using the dimensional analysis of similarity theory.Also,the similarity relations that must be satisfied by the physical quantities of model and prototype in soft rock model test are obtained.Based on the similarity criterion and the similarity relations,a suitable material not only can simulate the rheological mechanical properties of soft rock,but also can obtain a higher time-ratio between prototype test and model test.This study provides an important theoretical basis for developing new test method which can simply,rapidly and efficiently test soft rock rheological properties. |
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| Keywords: | soft rock modeling rheological similarity ratio similarity criteria physical parameter dimensional analysis |
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