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Research on Seepage Test Model of Rough Rock Fracture
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Hui-hui CHEN, Yue GAO, Feng-juan GUO, Ya-qin WANG
Water Resources and Power | 2023, 41(1) : 137 - 141
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Water Resources and Power | 2023, 41(1): 137-141
• WATER CONSERVANCY AND HYDROPOWER ENGINEERING •
Research on Seepage Test Model of Rough Rock Fracture
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Hui-hui CHEN, Yue GAO, Feng-juan GUO, Ya-qin WANG
Affiliations
  • Department of Hydraulic Engineering, Hebei University of Water Resources and Electric Engineering, Cangzhou 061001, China
Published: 2023-01-25 doi: 10.20040/j.cnki.1000-7709.2023.20220610
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Analysis of rock fracture seepage plays an important role in evaluation of rock engineering safety. The three-dimensional coordinate points of the rock fracture surface were scanned by a three-dimensional structure optical scanner and visually reconstructed. Parameters such as joint roughness coefficient JRC and topography statistics were used to quantitatively describe the roughness and undulation characteristics of rock fractures. Through experimental research, it is found that when the seepage pressure gradient increases, the seepage in rock fractures will change from linear seepage to non-linear seepage, and the Forchheimer formula can better fit this process. The threshold and Reynolds number of the critical Darcy flow were obtained by introducing he nonlinear factor E. The relative loss of momentum-Euler number was introduced to study the law of fluid energy evolution in the process of fracture seepage. It is found that the Euler number shows a trend that first drops rapidly and then gradually stabilizes. The result has certain guiding significance for actual engineering.

fissure seepage  /  three-dimensional topography  /  non-Darcy flow  /  critical Reynolds number  /  Euler number
Hui-hui CHEN, Yue GAO, Feng-juan GUO, Ya-qin WANG. Research on Seepage Test Model of Rough Rock Fracture[J]. Water Resources and Power, 2023 , 41 (1) : 137 -141 . DOI: 10.20040/j.cnki.1000-7709.2023.20220610
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Article Info
doi: 10.20040/j.cnki.1000-7709.2023.20220610
  • Receive Date：2022-03-29
  • Online Date：2026-01-28
  • Published：2023-01-25
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  • Received：2022-03-29
  • Revised：2022-05-20
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    Department of Hydraulic Engineering, Hebei University of Water Resources and Electric Engineering, Cangzhou 061001, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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