Generation and verification of three-dimensional network of fractured rock masses stochastic discontinuities based on digitalization
文献类型：期刊论文
| 作者 | Guo, Liang1; Li, Xiaozhao1; Zhou, Yangyi2; Zhang, Yangsong3 |
| 刊名 | ENVIRONMENTAL EARTH SCIENCES
 |
| 出版日期 | 2015 |
| 卷号 | 73期号:11页码:7075-7088 |
| 关键词 | Beishan of Gansu province Fractured rock masses Discontinuity network Stochastic simulation Verification Digitalization |
| ISSN号 | 1866-6280 |
| DOI | 10.1007/s12665-015-4175-3 |
| 英文摘要 | Accuracy of seepage simulation in rock masses is directly influenced by related geometrical parameters of DFN (discrete fracture network) models. In this paper a well-planned investigation of rock mass discontinuities was conducted on well-exposed outcrops in Beishan (Gansu province), one of the main candidate sites for the Chinese high-level radioactive waste repository using digital techniques, e.g. global positioning system, close range digital photogrammetry and geographical information system. This allows for very efficient collection of large volumes of data, over 10,000 discontinuities were obtained at the study site (Jijicao block), based on statistical parameters two homogeneities were identified, and the dominant sets were also delineated, which suggested that two sets exist in homogeneity I, while three sets in homogeneity II. In homogeneity I, The optimal fracture diameter probability distributions of both sets were lognormal. Three-dimensional stochastic DFN models were established for both homogeneities based on stochastic process as well as statistical parameters. The reliability of the model was validated by both graphical and numerical methods. Results showed that: digital techniques used in this study can overcome the problem of sample size and precision restriction posed by traditional methods, which leads to a more effective application of DFN model, and are thus suitable for tasks such as detailed mapping of rock masses in large area. It is believed that this verified DFN model is more appropriate for subsequent calculations of mechanical properties and seepage of fractured rock masses. |
| WOS研究方向 | Environmental Sciences & Ecology ; Geology ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000354712300029 |
| 出版者 | SPRINGER |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/3727]  |
| 专题 | 岩土力学所知识全产出_期刊论文 |
| 作者单位 | 1.Nanjing Univ, Sch Earth Sci & Engn ; 2.Chinese Acad Sci, Inst Rock & Soil Mech ; 3.Nanjing Univ Sci & Technol, Dept Civil Engn |
| 推荐引用方式 GB/T 7714 | Guo, Liang,Li, Xiaozhao,Zhou, Yangyi,et al. Generation and verification of three-dimensional network of fractured rock masses stochastic discontinuities based on digitalization[J]. ENVIRONMENTAL EARTH SCIENCES,2015,73(11):7075-7088. |
| APA | Guo, Liang,Li, Xiaozhao,Zhou, Yangyi,&Zhang, Yangsong.(2015).Generation and verification of three-dimensional network of fractured rock masses stochastic discontinuities based on digitalization.ENVIRONMENTAL EARTH SCIENCES,73(11),7075-7088. |
| MLA | Guo, Liang,et al."Generation and verification of three-dimensional network of fractured rock masses stochastic discontinuities based on digitalization".ENVIRONMENTAL EARTH SCIENCES 73.11(2015):7075-7088. |
入库方式： OAI收割
来源：武汉岩土力学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。