Test method of rive project movable bed physical model coupling

Abstract

The invention relates to a test method of rive project movable bed physical model coupling which comprises the following steps of: firstly, carrying out the preparation of a model test; then carrying out a model verification test; laying out the project on the model according to an improvement project initial design scheme; estimating a dynamic balance boundary morphology attained by a river bed after adjustment under the laid river boundary initial condition, wherein the dynamic balance boundary morphology comprises various parameters of river width, water depth, river bend radius; stimulating and moulding a new river boundary by an artificial moulding method according to the estimated parameters; carrying out a water discharge test under the artificially formed river bed boundary, observing various control and guide effect parameters and analyzing whether the control and guide effect parameters reach the design aim or not; otherwise, adjusting the scheme; if the control and guide effect parameters basically reach the design aim, proposing a recommendation scheme of modification or adjustment and carrying out the test; and comparing with the initial design scheme till the test is finished. The method has the advantage of observing the extreme value control and guide parameter or maximal control and guide effect of the project in a shorter test time interval so as to effectively shorten the test period and reduce the cost.

Description

technical field [0001] The invention relates to a dynamic bed model test of a sandy river, based on the new river bed boundary conditions and the test water and sediment process formed under the layout of the regulation project, and predicting the new evolution of the river through the method of empirical estimation or numerical simulation. In the state of dynamic balance, and use artificial methods to shape the relatively balanced river bank and river bed on the model in advance, and then carry out the regulation engineering test on the artificially shaped model with a balanced shape. , the extreme control parameters or the maximum control effect of the project can be observed in a short test period. Background technique [0002] Due to the complexity of the river bed evolution of the Yellow River and the variability and diversity of the river regime, it is often difficult to determine the design scheme of river regulation projects only by theoretical or empirical methods. ...

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Problems solved by technology

In this way, the test period is often very long, and the corresponding test cost is also high.

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