A new Cosserat-like constitutive model for bedded salt rocks
文献类型：期刊论文
| 作者 | Yang, Chun-He1,3; Daemen, Jaak J. K.2; Yin, Xue-Ying1; Li, Yin-Ping1; Chen, Feng1 |
| 刊名 | INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS
 |
| 出版日期 | 2009 |
| 卷号 | 33期号:15页码:1691-1720 |
| ISSN号 | 0363-9061 |
| 关键词 | bedded salt rocks Cosserat medium gas/oil storage failure stability |
| DOI | 10.1002/nag.784 |
| 英文摘要 | Salt rocks are commonly used as geologic host rocks for storage of gas and crude oil, and are being considered for the disposal of radioactive waste. Different from the salt rock domes in many countries, the salt rock formations in China are usually laminar with many alternating layers, i.e. rock salt, anhydrite, and/or mudstone. Considering the unique stratigraphic characteristics of these salt rocks, a new Cosserat-like medium constitutive model is proposed in order to facilitate efficient modeling of the mechanical behavior of these formations. In this model, a new representative volume element, containing two different layers, is employed to simulate the compatibility of the meso-displacement between two different layers and also the bending effect. A new method for the deformation and failure analysis of bedded salt rocks is derived therefrom. Having the macro-average stresses, the conventional stresses in the different layers can be obtained in sequence. The conventional stresses can then be utilized in a routine way for the strength and failure analysis. For the initial numerical modeling, the new Cosserat-like medium is reduced to a transversely isotropic one. The simplified constitutive model for layered media is then implemented into FLAC3D codes. A test sample validates that the results by using the numerical model are in good agreement with that by using the built-in model, and the mesh size for the new model is reduced greatly. Finally, an application for the stability of oil storage caverns in deep thinly bedded salt rocks is carried out. The effects on convergence of storage caverns and on the failure of surrounding rock due to the presence of the mudstone interlayers (hard phase) are discussed in detail. Copyright (C) 2009 John Wiley & Sons, Ltd. |
| WOS研究方向 | Engineering ; Materials Science ; Mechanics |
| 语种 | 英语 |
| 出版者 | JOHN WILEY & SONS LTD |
| WOS记录号 | WOS:000271070100001 |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/3219]  |
| 专题 | 岩土力学所知识全产出_期刊论文 国家重点实验室知识产出_期刊论文 |
| 作者单位 | 1.CAS, Wuhan Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn; 2.Univ Nevada, Mackay Sch Mines; 3.Key Lab Exploitat SW Resources & Environm Disaste |
| 推荐引用方式 GB/T 7714 | Yang, Chun-He,Daemen, Jaak J. K.,Yin, Xue-Ying,et al. A new Cosserat-like constitutive model for bedded salt rocks[J]. INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS,2009,33(15):1691-1720. |
| APA | Yang, Chun-He,Daemen, Jaak J. K.,Yin, Xue-Ying,Li, Yin-Ping,&Chen, Feng.(2009).A new Cosserat-like constitutive model for bedded salt rocks.INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS,33(15),1691-1720. |
| MLA | Yang, Chun-He,et al."A new Cosserat-like constitutive model for bedded salt rocks".INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS 33.15(2009):1691-1720. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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