A two-dimensional coupled hydromechanical discontinuum model for simulating rock hydraulic fracturing
文献类型：期刊论文
| 作者 | Zhang, Xiu-Li2; Jiao, Yu-Yong2; Zhang, Huan-Qiang2; Li, Hai-Bo2 ; Jiang, Qing-Hui1
|
| 刊名 | INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS
 |
| 出版日期 | 2015 |
| 卷号 | 39期号:5页码:457-481 |
| ISSN号 | 0363-9061 |
| 关键词 | rock hydraulic fracturing DDARF hydromechanical coupling discontinuum-based model |
| DOI | 10.1002/nag.2314 |
| 英文摘要 | Within the framework of our discontinuous deformation analysis for rock failure algorithm, this paper presents a two-dimensional coupled hydromechanical discontinuum model for simulating the rock hydraulic fracturing process. In the proposed approach, based on the generated joint network, the calculation of fluid mechanics is performed first to obtain the seepage pressure near the tips of existing cracks, and then the fluid pressure is treated as linearly distributed loads on corresponding block boundaries. The contribution of the hydraulic pressure to the initiation/propagation of the cracks is considered by adding the components of these blocks into the force matrix of the global equilibrium equation. Finally, failure criteria are applied at the crack tips to determine the occurrence of cracking events. Several verification examples are simulated, and the results show that this newly proposed numerical model can simulate the hydraulic fracturing process correctly and effectively. Although the numerical and experimental verifications focus on one unique preexisting crack, because of the capability of discontinuous deformation analysis in simulating block-like structures, the proposed approach is capable of modeling rock hydraulic fracturing processes. Copyright (c) 2014 John Wiley & Sons, Ltd. |
| WOS研究方向 | Engineering ; Materials Science ; Mechanics |
| 语种 | 英语 |
| 出版者 | WILEY-BLACKWELL |
| WOS记录号 | WOS:000351068800001 |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/3712]  |
| 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.Wuhan Univ, Sch Civil Engn 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn ; |
| 推荐引用方式 GB/T 7714 | Zhang, Xiu-Li,Jiao, Yu-Yong,Zhang, Huan-Qiang,et al. A two-dimensional coupled hydromechanical discontinuum model for simulating rock hydraulic fracturing[J]. INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS,2015,39(5):457-481. |
| APA | Zhang, Xiu-Li,Jiao, Yu-Yong,Zhang, Huan-Qiang,Li, Hai-Bo,&Jiang, Qing-Hui.(2015).A two-dimensional coupled hydromechanical discontinuum model for simulating rock hydraulic fracturing.INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS,39(5),457-481. |
| MLA | Zhang, Xiu-Li,et al."A two-dimensional coupled hydromechanical discontinuum model for simulating rock hydraulic fracturing".INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS 39.5(2015):457-481. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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