Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Trailing suction dredger construction method for reducing silt through ebb tide
The invention provides a drag suction dredger construction method for reducing silt through ebb tide. The drag suction dredger construction method comprises the following steps that S10, the sand carrying force of water flow of each section of a channel during ebb tide is calculated; s20, the drag suction dredger adopts a dredging cabin loading non-overflow construction process during flood tide; s30, in a construction section with small water flow sand carrying capacity in the ebb tide period, a dredging and loading cabin non-overflow construction technology is adopted; and in a construction section with large water flow sand carrying capacity in an ebb tide period. In the method, according to a water flow sand carrying force empirical formula, the water flow sand carrying force of each section of the channel is calculated in combination with parameters such as the water flow velocity, suspended sediment median particle size, sediment volume weight and muddy water volume weight according to the water flow velocity of each section of the channel and the excavation water depth. In a construction section where the sand carrying capacity of water flow is small in the ebb tide period, the dredging and loading non-overflow construction technology is adopted; in a construction section where the water flow sand carrying force is large in the ebb tide period, the drag suction dredger starts high-pressure flushing, the dredging and loading overflow construction technology is adopted, the dredging time is prolonged, suspended sand falling is reduced, and sediment is brought out of a channel through detidal current water flow power.
本发明提供一种利用退潮减淤的耙吸船施工方法，包括以下步骤：S10：计算涨落潮时航道各段水流挟沙力；S20：在涨潮时耙吸船采用挖泥装舱不溢流施工工艺；S30：在落潮时段水流挟沙力小的施工区段，采用挖泥装舱不溢流施工工艺；在落潮时段水流挟沙力大的施工区段。本发明中，根据水流挟沙力经验公式，结合水流的流速、悬沙中值粒径、泥沙容重、浑水容重等参数，根据航道各段水流流速和开挖水深，计算各段航道水流挟沙力。在落潮时段水流挟沙力较小的施工区段，采用挖泥装舱不溢流施工工艺；在落潮时段水流挟沙力较大的施工区段，耙吸船开高压冲水，采用挖泥装舱溢流施工工艺，延长挖泥时间，减少悬沙落淤，利用退潮流水流动力把泥沙带出航道。
Trailing suction dredger construction method for reducing silt through ebb tide
The invention provides a drag suction dredger construction method for reducing silt through ebb tide. The drag suction dredger construction method comprises the following steps that S10, the sand carrying force of water flow of each section of a channel during ebb tide is calculated; s20, the drag suction dredger adopts a dredging cabin loading non-overflow construction process during flood tide; s30, in a construction section with small water flow sand carrying capacity in the ebb tide period, a dredging and loading cabin non-overflow construction technology is adopted; and in a construction section with large water flow sand carrying capacity in an ebb tide period. In the method, according to a water flow sand carrying force empirical formula, the water flow sand carrying force of each section of the channel is calculated in combination with parameters such as the water flow velocity, suspended sediment median particle size, sediment volume weight and muddy water volume weight according to the water flow velocity of each section of the channel and the excavation water depth. In a construction section where the sand carrying capacity of water flow is small in the ebb tide period, the dredging and loading non-overflow construction technology is adopted; in a construction section where the water flow sand carrying force is large in the ebb tide period, the drag suction dredger starts high-pressure flushing, the dredging and loading overflow construction technology is adopted, the dredging time is prolonged, suspended sand falling is reduced, and sediment is brought out of a channel through detidal current water flow power.
本发明提供一种利用退潮减淤的耙吸船施工方法，包括以下步骤：S10：计算涨落潮时航道各段水流挟沙力；S20：在涨潮时耙吸船采用挖泥装舱不溢流施工工艺；S30：在落潮时段水流挟沙力小的施工区段，采用挖泥装舱不溢流施工工艺；在落潮时段水流挟沙力大的施工区段。本发明中，根据水流挟沙力经验公式，结合水流的流速、悬沙中值粒径、泥沙容重、浑水容重等参数，根据航道各段水流流速和开挖水深，计算各段航道水流挟沙力。在落潮时段水流挟沙力较小的施工区段，采用挖泥装舱不溢流施工工艺；在落潮时段水流挟沙力较大的施工区段，耙吸船开高压冲水，采用挖泥装舱溢流施工工艺，延长挖泥时间，减少悬沙落淤，利用退潮流水流动力把泥沙带出航道。
Trailing suction dredger construction method for reducing silt through ebb tide
一种利用退潮减淤的耙吸船施工方法
KE QIURUI (Autor:in) / CHEN DONG (Autor:in) / ZHAO BAOSHUAI (Autor:in) / ZOU JING (Autor:in) / MO ZHIFANG (Autor:in)
17.05.2024
Patent
Elektronische Ressource
Chinesisch
Energy dissipation and deposition system for silt in cabin of trailing suction dredger
| Europäisches Patentamt | 2021
REIMERSWAAL: Trailing-Suction Hopper Dredger
Online Contents | 1994
MOUSTAKBAL - Trailing Suction Hopper Dredger
Online Contents | 1999
AMSTERDAM: Trailing Suction Hopper Dredger
Online Contents | 1996