【Daily Discussion】Water Resources and Hydropower Engineering-20200724
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How are the flood control standards for small reservoir projects generally classified? Feel free to participate actively in the discussions – there are wealth rewards for everyone! ! !
To ensure the safety of reservoir projects and the lives and property of people downstream, **the design flood criteria and checking flood criteria for the permanent structures of small reservoir projects (dams, spillways, discharge channels, etc.) are both expressed in terms of the frequency of occurrence per year. For small Type (I) reservoirs (earth-rock dams), the design flood standard is 30–50 years once, while the check flood standard is 300–1000 years once; for small Type (II) reservoirs (earth-rock dams), the design flood standard is 20–30 years once, and the check flood standard is 200–300 years once.
To ensure the safety of reservoir projects and the lives and property of people downstream, **the design flood criteria and checking flood criteria for the permanent structures of small reservoir projects (dams, spillways, discharge channels, etc.) are both expressed in terms of the frequency of occurrence per year. For small Type I reservoirs (earth-rock dams), the design flood standard is 30–50 years once, while the check flood standard is 300–1000 years once ； The design flood standard for small (Class II) reservoirs (earth-rock dams) is a flood occurring once every 20–30 years, while the check flood standard is a flood occurring once every 200–300 years.
To ensure the safety of reservoir projects and the lives and property of people downstream, **the design flood criteria and checking flood criteria for the permanent structures of small reservoir projects (dams, spillways, discharge channels, etc.) are both expressed in terms of the frequency of occurrence per year. For small Type (I) reservoirs (earth-rock dams), the design flood standard is 30–50 years once, while the check flood standard is 300–1000 years once; for small Type (II) reservoirs (earth-rock dams), the design flood standard is 20–30 years once, and the check flood standard is 200–300 years once.
To ensure the safety of reservoir projects and the lives and property of people downstream, **the design flood criteria and checking flood criteria for the permanent structures of small reservoir projects (dams, spillways, discharge channels, etc.) are both expressed in terms of the frequency of occurrence per year. For small Type I reservoirs (earth-rock dams), the design flood standard is 30–50 years once, while the check flood standard is 300–1000 years once ； The design flood standard for small (Class II) reservoirs (earth-rock dams) is a flood occurring once every 20–30 years, while the check flood standard is a flood occurring once every 200–300 years.
To ensure the safety of reservoir projects and the lives and property of people downstream, **the design flood criteria and checking flood criteria for the permanent structures of small reservoir projects (dams, spillways, discharge channels, etc.) are both expressed in terms of the frequency of occurrence per year. For small Type (I) reservoirs (earth-rock dams), the design flood standard is 30–50 years once, while the check flood standard is 300–1000 years once; for small Type (II) reservoirs (earth-rock dams), the design flood standard is 20–30 years once, and the check flood standard is 200–300 years once.
To ensure the safety of reservoir projects and the lives and property of people downstream, **the design flood criteria and checking flood criteria for the permanent structures of small reservoir projects (dams, spillways, discharge channels, etc.) are both expressed in terms of the frequency of occurrence per year. For small Type I reservoirs (earth-rock dams), the design flood standard is 30–50 years once, while the check flood standard is 300–1000 years once ； The design flood standard for small (Class II) reservoirs (earth-rock dams) is a flood occurring once every 20–30 years, while the check flood standard is a flood occurring once every 200–300 years.
To ensure the safety of reservoir projects and the lives and property of people downstream, **the design flood criteria and checking flood criteria for the permanent structures of small reservoir projects (dams, spillways, discharge channels, etc.) are both expressed in terms of the frequency of occurrence per year. For small Type I reservoirs (earth-rock dams), the design flood standard is 30–50 years once, while the check flood standard is 300–1000 years once ； The design flood standard for small (Class II) reservoirs (earth-rock dams) is a flood occurring once every 20–30 years, while the check flood standard is a flood occurring once every 200–300 years.
For small Type I reservoirs (earth-rock dams), the design flood standard is 30–50 years once, while the check flood standard is 300–1000 years once； The design flood standard for small (Class II) reservoirs (earth-rock dams) is a flood occurring once every 20–30 years, while the check flood standard is a flood occurring once every 200–300 years.
To ensure the safety of reservoir projects and the lives and property of people downstream, **the design flood criteria and checking flood criteria for the permanent structures of small reservoir projects (dams, spillways, discharge channels, etc.) are both expressed in terms of the frequency of occurrence per year. For small Type I reservoirs (earth-rock dams), the design flood standard is 30–50 years once, while the check flood standard is 300–1000 years once ； The design flood standard for small (Class II) reservoirs (earth-rock dams) is a flood occurring once every 20–30 years, while the check flood standard is a flood occurring once every 200–300 years.
To ensure the safety of reservoir projects and the lives and property of people downstream, **the design flood criteria and checking flood criteria for the permanent structures of small reservoir projects (dams, spillways, discharge channels, etc.) are both expressed in terms of the frequency of occurrence per year. For small Type I reservoirs (earth-rock dams), the design flood standard is 30–50 years once, while the check flood standard is 300–1000 years once ； The design flood standard for small (Class II) reservoirs (earth-rock dams) is a flood occurring once every 20–30 years, while the check flood standard is a flood occurring once every 200–300 years.