Workmanship flowing chart for earthwork excavationConstruction preparationSurvey and lay lineCut-off, drainage ditchesExcavation in layerMachine in placeSide slope protectionSurvey locationBlasting designDrill in placeBored holeLoad dynamiteConnecting wire and detonatingSafe warningGet rid of dangerousRemoving warningLoad stonework and conveyBrush slop, clean bottom, and drainage ditch