PIANC Smart Rivers 2022
Reviewing Presentation documents
Topic:
Inland Navigation Structure
Logistics
River System Management
Smart Shipping
Special Sessions
Waterway Infrastructure
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Author
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Affiliations:
Region:
Afghanistan
Albania
Algeria
America
Andorra
Angola
Antigua and Barbuda
Argentina
Armenia
Aruba
Australia
Austria
Azerbaijan
Bahamas
Bahrain
Bangladesh
Belarus
Belgium
Belize
Benin
Bermuda
Bhutan
Bolivia
Bosnia and Barbados
Bosnia and Herzegovina
Botswana
Brazil
British Virgin Islands
Brunei
Bulgaria
Burkina Faso
Burundi
Cambodia
Cameroon
Canada
Cape Verde
Cayman Islands
Central African Republic
Chad
Chile
China
China(Hong Kong)
China(Macao)
China(Tai wan)
Colombia
Comoros
Costa Rica
Croatia
Cuba
Cyprus
Czech Republic
Democratic Republic of the Congo
Denmark
Djibouti
Dominica
Dominican Republic
Ecuador
Egypt
El Salvador
Equatorial Guinea
Eritrea
Estonia
Ethiopia
Falkland Islands
Faroe Islands
Fiji
Finland
France
Gabon
Gambia
Georgia
Germany
Ghana
Gibraltar
Greece
Grenada
Guatemala
Guinea
Guinea-Bissau
Guyana
Haiti
Honduras
Hungary
Iceland
India
Indonesia
Iran
Iraq
Ireland
Israel
Italy
Jamaica
Japan
Jordan
Kazakhstan
Kenya
Kiribati
Kuwait
Kyrgyzstan
Laos
Latvia
Lebanon
Lesotho
Liberia
Libya
Liechtenstein
Lithuania
Luxembourg
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Malawi
Malaysia
Maldives
Mali
Malta
Mauritania
Mauritius
Mexico
Micronesia
Moldova
Monaco
Mongolia
Montenegro
Morocco
Mozambique
Myanmar
Namibia
Nauru
Nepal
Netherlands
New Zealand
Nicaragua
Niger
Nigeria
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Norway
Oman
Pakistan
Palau
Palestine
Panama
Papua New Guinea
Paraguay
Peru
Philippines
Poland
Portugal
Puerto Rico
Qatar
Romania
Russia
Rwanda
Saint Kitts and Nevis
Saint Lucia
Saint Vincent And The Grenadine
San Marino
Sao Tome and Principe
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Serbia
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Slovak Republic
Slovenia
Solomon Islands
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Switzerland
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Belarus
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Bolivia
Bosnia and Barbados
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Botswana
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British Virgin Islands
Brunei
Bulgaria
Burkina Faso
Burundi
Cambodia
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Central African Republic
Chad
Chile
China
China(Hong Kong)
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Abstract :
*(250~1000 words)
The submerged dam is one of the commonly used schemes for the prevention and treatment of the pit-type collapse, which is often used in the pit-type collapse emergency treatment in Anhui and Jiangsu sections of the Yangtze River and has achieved good effect of promoting siltation. The Height of submerged dam is lack of theoretical basis in design, so it is determined by experience in the past. For example, the maximum relative height of the submerged dam (the ratio of the maximum water depth to the maximum dam height in the section of the submerged dam) is 0.5, and the maximum relative height at the Zhinan village is 0.15. Based on the physical model of the pit-type collapse at the Zhinan village in Yangzhong reach, the velocity, flow direction and surface flow pattern at 12 points in the outlet submerged dam with 5 different heights were measured. The experimental results show that the velocity of 0.2H layer increases, the velocity of 0.8H layer decreases at the down-stream area of pit-type pool, and the velocity decreases mainly at the up-stream of pit-type pool under the influence of the submerged dam. The mean velocity in pit-type pool decreases with the increase of the height of the submerged dam, and the relationship between them is linear. Because of the square relation between the engineering quantity and the height of the submerged dam, it is considered that the submerged dam should not be too high as long as it can satisfy the sedimentation in pit-type pool.
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