摘要: |
Welcome to a regular column discussing dredge production and dredging issues. I have been in dredging for 32 years, most of them with Great Lakes Dredge & Dock Company (GLD&D) and had a great career in the field and corporate office. I retired as Director of Production Engineering and R&D a year ago as I write this in mid-December. This month I am going to start by discussing the cycles every dredge goes through as it digs. The cycles combine excavation, transport and repositioning the dredge for the next cycle. The cycles are great place to start talking dredge production, as it allows us to break the complexity of dredging into more easily understandable pieces. The cycle helps us understand the differences, strengths, and weakness of the various dredge types. At GLD&D we spent lot of time developing precise definitions of the various cycle elements, which time applied to which element, and which time was delays we did not count as work. |