Test device for flowing water erosion resistance of hydraulic structure and test method thereof

Abstract

The invention discloses a test device for flowing water erosion resistance of a hydraulic structure and a test method thereof, belonging to the technical field of concrete test devices. The test device comprises an outer shell, wherein the outer shell is internally provided with an inner cylinder, the top of the inner cylinder is provided with a water inlet channel communicated with external watersource, the bottom of the inner cylinder is provided with a drainage channel, both the water inlet channel and the drainage channel are provided with a valve, the bottom of the inner cylinder is further provided with a disc wave wheel, a speed control drive mechanism for driving the disc wave wheel to rotate is arranged below the bottom of the inner cylinder, the inner cylinder is internally provided with a sleeve support for loading a sample and a current meter for monitoring water flow speed, the top of the sleeve support and the top of the outer shell are detachably connected, the currentmeter is arranged on the inner wall of the inner cylinder, and the outer shell is provided with a control switch of the speed control drive mechanism. The test device is simple to manufacture, is low-cost, and is convenient to maintain; rotating speed is stable and is adjustable; and a test piece can be completely submerged in the liquid, so as to better simulate an actual environment, therefore,the test efficiency is improved.

Description

technical field [0001] The invention relates to the field of concrete test devices, in particular to a test device and a test method for a hydraulic structure anti-erosion test device. Background technique [0002] Water erosion of hydraulic structures refers to the phenomenon that the water flow continuously scours the buildings, causing the surface of the buildings to wear out. There are more than 98,000 reservoir dams in my country, the country with the most dams in the world; more than 800,000 road bridges, most of which have piers poured in water, and more than 20 sea-crossing bridges have been built in my country. The bridge piers have been in the environment of seawater erosion for a long time. Hydraulic structures subjected to running water erosion for a long time will cause pockmarks and pits on the surface of the building, and even a large area of ​​wall peeling off in serious parts, which will shorten the service life of the building and affect the safety of the p...

AI Technical Summary

Problems solved by technology

[0003] At this stage, the ring method or underwater steel ball method is usually used for the flowing water erosion test. Its disadvantage is that it is not sensitive to the erosion test of concrete with a strength grade above C40, and it is difficult to meet th

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