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人工示踪沙实验是进行沉积物搬运研究的一种独立方法,已有近50年的发展历史。人工示踪沙实验有三种主要方法(即空间积分法、时间积分法和连续投放法),可用以获得活动层厚度、垂向和水平扩散系数、输运率等定量参数,并进行不同输沙公式进行对比验证,在海底稳定性分析、港湾冲淤、工程措施影响评价等方面都有应用价值。通过加强实验的物理边界、沉积物活动层厚度、实验的时空尺度、充分混合状态、示踪沙回收率、沉积物搬运过程等方面的研究,可望使人工示踪沙实验的理论更加完备,更具应用价值。
Artificial tracer sand experiment is an independent method of sediment transport research, has nearly 50 years of development history. There are three main methods of artificial tracing sand experiment (space integral method, time integral method and continuous dropping method), which can be used to obtain the quantitative parameters of active layer thickness, vertical and horizontal diffusion coefficient, transport rate and so on. Formula to verify the contrast in the seabed stability analysis, siltation in the harbor, the impact of engineering measures and other aspects of the evaluation value. It is expected that the theory of artificial tracing sand experiment will be more complete by strengthening the physical boundaries of the experiment, the thickness of the active layer of the sediments, the spatio-temporal scale of the experiment, the well-mixed state, the recovery rate of the tracer sand and the sediment transport process, More application value.