土石方开挖工艺流程图.doc

Workmanship flowing chart for earthwork excavation Safe warning Blasting design Machine in place Brush slop, clean bottom, and drainage ditch Connecting wire and detonating Load stonework and convey Removing warning Get rid of dangerous Load dynamite Bored hole Drill in place Side slope protection Survey location Excavation in layer Cut-off, drainage ditches Survey and lay line Construction preparation