Calculation method for effect of silt sediment on lifting force of hydraulic gate |
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| Authors: | Email author" target="_blank">Shizhao?GaoEmail author Guobin?Xu Mingbin?Wang |
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| Institution: | 1.State Key Laboratory of Hydraulic Engineering Simulation and Safety,Tianjin University,Tianjin,China;2.School of Civil Engineering,Ludong University,Yantai,China;3.State Key Laboratory of Water Resources and Hydropower Engineering Science,Wuhan University,Wuhan,China |
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| Abstract: | In this paper, silt sediment is considered to be Bingham body, which is made up of coarse and fine particles in front of a hydraulic gate. The coarse and fine particles provide friction and shear stress in the course of opening the gate. They constitute together the adhesion force of the sediment. Based on this viewpoint, this paper puts forward a formula for the effect of silt sediment on the lifting force. The formula includes gate weight, down-suction force, sealing rubber friction, plus-weight, water-column pressure, plus-silted-sediment weight and rolling (or sliding)-bearing friction. Finally, the verification results show that the formula has certain reliability and the calculation accuracy can meet the need of practical engineering. |
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