Test device and method for detecting porosity of particles in Hull-Shore sheet

Abstract

The invention discloses a test device for detecting the porosity of particles in a Hull-Shore sheet. The test device comprises a sealed photostudio, a Hull-Shore particle containing slide frame, a shadowless lamp, a CCD camera and a data processing system. N Hull-Shore particle containing slides are mounted on the Hull-Shore particle containing slide frame. The N Hull-Shore particle slides have the same thickness, but the densities of particle samples in the N Hull-Shore particle slides are different. The shadowless lamp is arranged over the Hull-Shore particle containing slide frame, and theCCD camera is arranged under the Hull-Shore particle containing slide and connected with the data processing system through a communication interface. And the data processing system comprises image recognition software installed in a computer and is used for receiving, recording and processing data from the CCD camera and distinguishing the porosity of the thin particle layer with the uniform thickness by taking the light transmission degree of the picture as a distinguishing index. The device and the method can be used for detecting the compactness and uniformity of the dry particle sample inthe Hull-Shore sheet.

Description

technical field [0001] The invention relates to the technical field of water conservancy and geotechnical engineering tests, in particular to a method for testing the compactness of a particle sample in conjunction with a Hull-Shore seepage erosion test. Background technique [0002] The initial density and uniformity of the sample will have a direct impact on the test results. In the existing Hull-Shore thin plate test, the test is carried out directly after the filling of the granular sample is completed, without any inspection of the compactness and uniformity of the sample. The test results show that no matter under the external force of blowing air or injecting liquid, the sample will usually be destroyed first from the initial defect. This kind of test failure caused by the initial defect of the sample because the compactness and uniformity of the sample is not tested has seriously affected the scientific research progress in this field. [0003] In order to obtain a...

AI Technical Summary

Problems solved by technology

The density and uniformity of the sample are calibrated by this device to avoid the test failure caused by the initial defect, thus solving the problem that the density and uniformity of the thin particle layer sample in the Hull-Shore thin plate test cannot be inspected, and perfect the Hull-Shore thin plate test. Earl-Shore thin plate test method

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