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Development of Monitoring Index of Channel Slope Displacement Based on 2σ-chauvenet Criterion POT Model
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Cong-cong ZHOU1, Zhen-zhong SHEN1, Fu-heng MA2
Water Resources and Power | 2023, 41(2) : 195 - 198
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Water Resources and Power | 2023, 41(2): 195-198
• WATER CONSERVANCY AND HYDROPOWER ENGINEERING •
Development of Monitoring Index of Channel Slope Displacement Based on 2σ-chauvenet Criterion POT Model
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Cong-cong ZHOU1, Zhen-zhong SHEN1, Fu-heng MA2
Affiliations
  • 1.College of Water Conservancy & Hydropower Engineering, Hohai University, Nanjing 210024, China
  • 2.Nanjing Hydraulic Research Institute, Nanjing 210029, China
Published: 2023-02-25 doi: 10.20040/j.cnki.1000-7709.2022.20212299
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In the long service process of the deep excavated expansive soil channel slope, the real-time identification of the service behavior of the channel slope by means of displacement monitoring index is an important means to ensure the safe operation of the channel slope. Therefore, it is of great significance to formulate reasonable monitoring indexes for the safety of canal slope engineering. The POT model was presented in this paper. On the basis of introduction of 2 σ criteria and chauvenet principles, the threshold T and the corresponding relation between monitoring index was established. Through the best solution to satisfy the relationship between threshold, a canal slope displacement monitoring index for improved POT model was established to apply to the Taocha section of South-to-North Water Transfer Project of deep excavation expansion earth canal in slope engineering. Compared with the traditional POT model, the results show that the improved POT model based on 2σ -chauvenet criterion can effectively avoid subjectivity and random error, and it has higher calculation accuracy. The proposed displacement monitoring index is more safety, which has stronger guiding significance to prevent the risk of canal slope and ensure the safe long-term operation of canal slope.

deep carving channel slope  /  expansive soil  /  monitoring indicators  /  Peaks over Threshold model  /  2σ-chauvenet criterion
Cong-cong ZHOU, Zhen-zhong SHEN, Fu-heng MA. Development of Monitoring Index of Channel Slope Displacement Based on 2σ-chauvenet Criterion POT Model[J]. Water Resources and Power, 2023 , 41 (2) : 195 -198 . DOI: 10.20040/j.cnki.1000-7709.2022.20212299
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Year 2023 volume 41 Issue 2
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Article Info
doi: 10.20040/j.cnki.1000-7709.2022.20212299
  • Receive Date：2021-10-25
  • Online Date：2026-01-27
  • Published：2023-02-25
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  • Received：2021-10-25
  • Revised：2021-11-24
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Affiliations
    1.College of Water Conservancy & Hydropower Engineering, Hohai University, Nanjing 210024, China
    2.Nanjing Hydraulic Research Institute, Nanjing 210029, 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
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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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