| 摘要: |
| 材料的相似度是物理模拟实验的关键因素,分析两种定量化评价方法。提出一种基于应力-应变曲线的岩石材料力学相似性定量评价法,由应力-应变曲线评价、基于应力-应变曲线的π值评价和综合评价3部分组成。通过综合评价指标描述相似程度。结果表明:评价内容应包含材料参数两个方面的特性,即相似材料参数理论值与实际值的近似度和相似材料参数满足无量纲数的情况。验证了所提出的方法在构造变形与烃类充注一体化物理模拟中的准确性和实用性。 |
| 关键词: 相似性评价 相似材料 岩石力学 应力-应变曲线 |
| DOI：10.3969/j.issn.1673-5005.2015.05.019 |
| 分类号::TE 12 |
| 基金项目:“十二五”国家科技重大专项(2011ZX05006-003) |
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| Research of quantitative assessment methods on mechanical similarity of rock similar material |
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REN Xuhu1, ZHANG Zhuo2,SHAN Yixian1
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(1.College of Information and Control Engineering in China University of Petroleum, Qingdao 266580, China;2.CNOOC Shandong Chemical Engineering Company Limited, Jinan 250101, China)
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| Abstract: |
| Similar material is one of the key factors in physical model experiment. Two quantitative assessment methods were analyzed. A quantitative assessment method for the mechanical similarity of rock similar material was proposed based on stress-strain curve, which is composed of stress-strain curve assessment, stress-strain curve based π assessment and comprehensive assessment. The comprehensive assessment value indicates the level of similarity. The analysis results show that the assessment should contain two aspects. One is the evaluation of discrepancy between theoretical parameters and practical parameters of similar materials, the other is the measurement of the difference in non-dimensional number. The application of this method in integrated physical simulation of tectonic deformation and hydrocarbon charging shows its practicability. |
| Key words: similarity assessment similar material rock mechanics stress-strain curve |
