Characterization of Seepage Velocity beneath a Complex Rock Mass Dam Based on Entropy Theory
| Autor: | Tao Wang, Linghua Liu, Xixi Chen, Huaidong Zhou, Jiansheng Chen |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
0208 environmental biotechnology
0211 other engineering and technologies Borehole General Physics and Astronomy complex rock mass dam lcsh:Astrophysics 02 engineering and technology Physics::Geophysics lcsh:QB460-466 Entropy (information theory) fracture flow Geotechnical engineering Rock mass classification lcsh:Science Randomness 021101 geological & geomatics engineering geography geography.geographical_feature_category Bedrock Principle of maximum entropy uncertainty and randomness Fracture flow entropy theory seepage velocity lcsh:QC1-999 020801 environmental engineering Flow velocity lcsh:Q Geology lcsh:Physics |
| Zdroj: | Entropy; Volume 18; Issue 8; Pages: 293 Entropy, Vol 18, Iss 8, p 293 (2016) |
| ISSN: | 1099-4300 |
| DOI: | 10.3390/e18080293 |
| Popis: | Owing to the randomness in the fracture flow system, the seepage system beneath a complex rock mass dam is inherently complex and highly uncertain, an investigation of the dam leakage by estimating the spatial distribution of the seepage field by conventional methods is quite difficult. In this paper, the entropy theory, as a relation between the definiteness and probability, is used to probabilistically analyze the characteristics of the seepage system in a complex rock mass dam. Based on the principle of maximum entropy, an equation for the vertical distribution of the seepage velocity in a dam borehole is derived. The achieved distribution is tested and compared with actual field data, and the results show good agreement. According to the entropy of flow velocity in boreholes, the rupture degree of a dam bedrock has been successfully estimated. Moreover, a new sampling scheme is presented. The sampling frequency has a negative correlation with the distance to the site of the minimum velocity, which is preferable to the traditional one. This paper demonstrates the significant advantage of applying the entropy theory for seepage velocity analysis in a complex rock mass dam. |
| Databáze: | OpenAIRE |
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