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Construction method for silt reduction building of urban inland river channel
According to the construction method, a rubber dam and a mud storage pit are combined, the mud storage pit reduces the flow speed of water flow, changes vertical distribution of sediment and enables sediment particles to be concentrated downwards, the rubber dam is designed in an arch shape, impact force of the water flow to the rubber dam is weakened, and meanwhile the sediment particles are prevented from falling off. Silt in an upstream silt source of the river channel is intercepted and deposited to a selected section convenient for mechanical desilting; and then, the deposited sludge is excavated and treated in a mechanical dredging mode. The method has the advantages that the design is simple and quick, and a designer can perform design calculation of actual engineering only by manually recording data such as the river width, the normal water level height, the water flow velocity and the model reduced scale test. According to the method, the dredging efficiency is improved, siltation of river channels in a city is reduced, the traffic pressure in the city is reduced, and manpower and material resources are saved.
本发明公开了一种用于城市内河河道减淤建筑施工方法,采用橡皮坝与储泥坑结合,储泥坑减小水流流速,改变泥沙垂向分布,使泥沙颗粒向下集中,橡皮坝采用拱形设计,在消弱水流对橡皮坝冲击力的同时,将河道上游泥沙来源中的泥沙拦截,使其淤积到选定的便于机械清淤的区段;然后,利用机械清淤的方式,将淤积下来的淤泥挖除后处理。本发明的优点在于设计简单快捷,设计者只需要手记河道宽度、常水位高度、水流流速及模型缩尺试验等数据,即可进行实际工程的设计计算。该方法在提高清淤效率的同时,减少了城市内部河道的淤积,减小了城市内部交通压力,节约人力物力。
Construction method for silt reduction building of urban inland river channel
According to the construction method, a rubber dam and a mud storage pit are combined, the mud storage pit reduces the flow speed of water flow, changes vertical distribution of sediment and enables sediment particles to be concentrated downwards, the rubber dam is designed in an arch shape, impact force of the water flow to the rubber dam is weakened, and meanwhile the sediment particles are prevented from falling off. Silt in an upstream silt source of the river channel is intercepted and deposited to a selected section convenient for mechanical desilting; and then, the deposited sludge is excavated and treated in a mechanical dredging mode. The method has the advantages that the design is simple and quick, and a designer can perform design calculation of actual engineering only by manually recording data such as the river width, the normal water level height, the water flow velocity and the model reduced scale test. According to the method, the dredging efficiency is improved, siltation of river channels in a city is reduced, the traffic pressure in the city is reduced, and manpower and material resources are saved.
本发明公开了一种用于城市内河河道减淤建筑施工方法,采用橡皮坝与储泥坑结合,储泥坑减小水流流速,改变泥沙垂向分布,使泥沙颗粒向下集中,橡皮坝采用拱形设计,在消弱水流对橡皮坝冲击力的同时,将河道上游泥沙来源中的泥沙拦截,使其淤积到选定的便于机械清淤的区段;然后,利用机械清淤的方式,将淤积下来的淤泥挖除后处理。本发明的优点在于设计简单快捷,设计者只需要手记河道宽度、常水位高度、水流流速及模型缩尺试验等数据,即可进行实际工程的设计计算。该方法在提高清淤效率的同时,减少了城市内部河道的淤积,减小了城市内部交通压力,节约人力物力。
Construction method for silt reduction building of urban inland river channel
一种用于城市内河河道减淤建筑施工方法
WU HUIMING (Autor:in)
03.01.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E02B
HYDRAULIC ENGINEERING
,
Wasserbau