Lumpiness Distribution Analysis of Concrete Blasting Test with Air-decking Charge

Current research status of photography was described in the block distribution.The image processing method with PS and CAD based on manual delineation was also introduced.Tests of air-decking blasting with different air layer position and scale were carried out in concrete.Meanwhile,the image processing method was used to collect data and sum up the lumpiness distribution in the view of projection area.All the test results were analyzed comparatively with three indexes of the curve of lumpiness distribution and the maximum block size and the average block size.The influence law of air layer position and scale for lumpiness distribution in the air-decking blasting was preliminary obtained.In addition,the same tests were discussed and compared by two different methods of projection area and mesh size;results showed that the two methods are unanimous in the index of represent lumpiness distribution.