Sand grain simulation ball with automatic timing function and simulation timing method

Abstract

The invention discloses a sand grain simulation ball with an automatic timing function and a simulation timing method. The simulation ball comprises a hollow simulation ball body, a water feed pipe, a pressure sensor, a timer and a data interface. The simulation ball body is provided with a first hole and a second hole. The center of the first hole, the center of the second hole and the sphere center of the simulation ball form a straight line. The water feed pipe is arranged in the first hole. The end, away from the simulation ball body, of the first hole is provided with a sealing device. One end of the water feed pipe is connected with the pressure sensor. The pressure sensor is connected with the data interface through the timer. The data interface is arranged in the second hole. The end, away from the center of the simulation ball body, of the second hole is plugged through a rubber plug. According to the sand grain simulation ball, automatic timing of the process that the sand grain simulation ball is released and runs out of a flushing pit is achieved, and the problems that that the manual timing is large in workload and error are solved; once the simulation ball is released, automatic timing can be conducted by triggering the timer through the pressure sensor, and the initial timing error caused by manual release is reduced.

Description

technical field [0001] The invention relates to a sediment particle simulation device, in particular to a sediment particle simulation ball with automatic timing function and a simulation timing method. Background technique [0002] Affected by wading structures such as bridge piers, scour pits are easily formed on the upstream surface of bridge piers. In order to study the mechanism of sediment movement in the scour pits, it is necessary to simulate the scour pits in the laboratory, put sediment particles, and observe the movement of sediment particles under certain water flow conditions. Happening. like image 3 One of the important research methods is to put a single particle of sediment (particle size 1-3cm) into the center of the scour pit, record the time when the sediment particles run out of the scour pit, and then use a certain time as the dividing line to count the The ratio of sediment particles running out and not running out of the scour in time, so as to obtai...

AI Technical Summary

Problems solved by technology

At present, the timing of sediment particles running out of the scour pit is mainly used manually. Since this experimental research requires a large sample test, the manual method has a large workload and large errors, and it is difficult to study for a long time.

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