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Displacement Detection Method of High Slope Near Dam of Power Station Based on UAV Nap of the Object Photogrammetry
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Chun-yao HOU1, Yan-pian MAO1, 2, Ding-ming LIU1, Shao-qing NING1
Water Resources and Power | 2023, 41(4) : 172 - 175
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Water Resources and Power | 2023, 41(4): 172-175
• WATER CONSERVANCY AND HYDROPOWER ENGINEERING •
Displacement Detection Method of High Slope Near Dam of Power Station Based on UAV Nap of the Object Photogrammetry
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Chun-yao HOU1, Yan-pian MAO1, 2, Ding-ming LIU1, Shao-qing NING1
Affiliations
  • 1.China Yangtze Power Co., Ltd., Yichang 443002, China
  • 2.State Key Lab. of Hydroscience and Eng., Tsinghua University, Beijing 100084, China
Published: 2023-04-25 doi: 10.20040/j.cnki.1000-7709.2023.20220598
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Conventional methods such as deformation monitoring, laser scanning and ground-based radar have certain limitations in the scene of high slope near the dam of hydropower station, so it is difficult to find the hidden dangers of high slope disasters near the dam in time and early-warning slope accidents. Taking a hydropower station in Jinsha River Basin as the research object, this paper proposes a high slope displacement detection method based on the UAV proximity photography, which mainly includes the UAV proximity photography data acquisition method for accurate path planning, generation of the SFM-MVS 3D model and point cloud model, and point cloud comparison algorithm based on adjacent 3D grid plane. Data acquisition, accuracy analysis and displacement comparison are carried out in the study area. The results show that the accuracy of this method in both horizontal and vertical directions reaches millimeter level, which can meet the needs of large-scale and high-precision displacement detection of high slope near the dam, and has strong scientific research and engineering practical value.

high slope  /  UAV  /  displacement detection  /  nap of the object photogrammetry  /  point cloud processing
Chun-yao HOU, Yan-pian MAO, Ding-ming LIU, Shao-qing NING. Displacement Detection Method of High Slope Near Dam of Power Station Based on UAV Nap of the Object Photogrammetry[J]. Water Resources and Power, 2023 , 41 (4) : 172 -175 . DOI: 10.20040/j.cnki.1000-7709.2023.20220598
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Article Info
doi: 10.20040/j.cnki.1000-7709.2023.20220598
  • Receive Date：2022-03-28
  • Online Date：2026-01-27
  • Published：2023-04-25
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History
  • Received：2022-03-28
  • Revised：2022-07-07
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Affiliations
    1.China Yangtze Power Co., Ltd., Yichang 443002, China
    2.State Key Lab. of Hydroscience and Eng., Tsinghua University, Beijing 100084, China
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https://castjournals.cast.org.cn/joweb/sdnykx/EN/10.20040/j.cnki.1000-7709.2023.20220598
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表12种不同金属材料的力学参数
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Family		 属数
Number of
genus		 种数
Number of
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Percentage of
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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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