Numerical determination of strength and deformability of fractured rock mass by FEM modeling
文献类型：期刊论文
| 作者 | Yang JianPing1; Chen WeiZhong1,2; Yang DianSen1; Yuan JingQiang1 |
| 刊名 | COMPUTERS AND GEOTECHNICS
 |
| 出版日期 | 2015 |
| 卷号 | 64页码:20-31 |
| 关键词 | Rock mass Strength Deformation modulus Numerical Representative elementary volume (REV) |
| ISSN号 | 0266-352X |
| DOI | 10.1016/j.compgeo.2014.10.011 |
| 英文摘要 | The strength and deformability of fractured rock masses are important factors in the design and construction of civil and mining structures built in or on rock masses. The finite element method (FEM) was applied to study the mechanical behavior of fractured rock masses. A damage-softening statistical constitutive model of intact rock was implemented in FEM code in order to model the strain-softening behavior of rock masses. The FEM model was verified against a theoretical solution and resulted in good agreement. The FEM model was then applied to investigate the progressive failure process, scale effect and anisotropic characteristics of uniaxial compressive strength (UCS), and the deformation modulus of fractured rock masses. The numerical results showed that the representative elementary volume (REV) for strength and deformation modulus is 12 m with an acceptable variation of 10%, and the complete stress-strain curves of models greater than REV size were very similar to each other. A linear relationship was also found between the UCS and the deformation modulus. This result seems to support the idea that a rock mass has a critical strain corresponding to the UCS, regardless of the deformation modulus, scale and direction. (C) 2014 Elsevier Ltd. All rights reserved. |
| WOS研究方向 | Computer Science ; Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000348557600003 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/3690]  |
| 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.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn ; 2.Shandong Univ, Res Ctr Geotech & Struct Engn |
| 推荐引用方式 GB/T 7714 | Yang JianPing,Chen WeiZhong,Yang DianSen,et al. Numerical determination of strength and deformability of fractured rock mass by FEM modeling[J]. COMPUTERS AND GEOTECHNICS,2015,64:20-31. |
| APA | Yang JianPing,Chen WeiZhong,Yang DianSen,&Yuan JingQiang.(2015).Numerical determination of strength and deformability of fractured rock mass by FEM modeling.COMPUTERS AND GEOTECHNICS,64,20-31. |
| MLA | Yang JianPing,et al."Numerical determination of strength and deformability of fractured rock mass by FEM modeling".COMPUTERS AND GEOTECHNICS 64(2015):20-31. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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