Automatic measuring device for seawall top wave overtopping rate of laboratory trough testing

Abstract

The invention discloses an automatic measuring device for the seawall top wave overtopping rate of laboratory trough testing. A seawall model is transversely arranged in a trough and provided with a wave wall. The device is arranged behind the seawall model and comprises a water collection trough, a water collection tank, a water level tracker and a computer. The upper end of the water collection trough is vertically placed in the center of the top of the wave wall, and a water outlet is formed in the lower end of the water collection trough. A water inlet of the water collection tank is located below the water outlet of the water collection trough. The water level tracker is fixed to the water collection tank and used for measuring the water level in the water collection tank. A data collection card is arranged in the computer and collects water level data in the water level tracker, the computer calls the water level data to generate a process curve that the water level changes along with time, and the process curve is displayed and stored. In the measuring process of the device, worker intervention is not needed, the measuring process is automatically completed, and the result accuracy is high; and the measuring result can really reflect wave overtopping rate values generated by different-size waves in wave trains.

Description

Technical field [0001] The invention relates to a device for measuring the amount of over-wave on the top of a seawall, in particular to an automatic measurement device for the amount of over-wave on the top of a seawall in a laboratory tank test. Background technique [0002] With the rapid development of my country's coastal economy and the increasing number of offshore production activities, the losses caused by typhoon surge disasters in recent years have shown a clear upward trend in general. According to statistics, only one typhoon in 2005 damaged 10,266 coastal dikes with a length of 600.7 kilometers and an economic loss of 32.98 billion yuan. As a seawall that resists the impact of waves in the open sea, it is an important engineering facility to protect coastal areas from tides and waves. The destruction of the seawall will lead to serious consequences. A large number of seawall accidents have shown that: surging waves is an important reason for the destruction of seaw...

AI Technical Summary

Problems solved by technology

Although the weighing method is simple to operate, it has great limitations. First of all, it cannot truly reflect the impact value of over-wave of different waves (expressed as over-wave form), and this over-wave form is more important for analysis. The impact of wave water on pedestrians, vehicles and structures on the back slope is particularly important

At the same time, under special circumstances, for example, when it is necessary to design the strength of the rear slope protection by using the amount of wave overshoot generated by a single large wave in engineering, because the result of wave overshoot caused by continuous wave action cannot be captured in time, it can only be carried out by using the average overwave amount. Instead, this will bring certain risks to the engineering design

In addition, when the water body is manually weighed for many times, there is also the possibility of water leakage and misreading; especially when the wind condition test is carried out in the water tank, the measurer in the water tank will have certain obstacles and interference to the wind speed These will have a certain impact on the test results

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