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河口、海岸带粘性泥沙的动水沉降特性不仅受到潮流、波浪等动力因素的作用,而且还受到盐度、含沙量和水温等因素的影响,为掌握粘性泥沙的动水沉降特性,作者通过环形水槽试验,着重探讨了水流速、含沙量、盐度和水温等对粘性细沙沉降的影响,结果表明,粘性泥沙的动水沉降主要受制于动力因素的影响,而随流速的减小,含沙量、盐度的影响逐渐明显.在低含沙量情况下,水温对沉降有较大影响,必须加以修正.
Estuarine and coastal zone viscous sediment hydrodynamic settlement not only by tidal currents, waves and other dynamic factors, but also by the salinity, sediment concentration and water temperature and other factors, in order to grasp the dynamic sedimentation characteristics of viscous sediments, The authors studied the influence of water velocity, sediment concentration, salinity and water temperature on the sedimentation of viscous fine sand through the annular groove test. The results show that the dynamic sedimentation of viscous sediment is mainly affected by the dynamic factors, The sediment concentration and salinity have obvious effects.When the sediment concentration is low, the water temperature has a greater impact and must be amended.