| 摘要 |
PROBLEM TO BE SOLVED: To provide a work quantity management system whereby work quantity such as the amounts of sediments alternately scooped by hydraulic shovels from barges and put into hoppers and operating hours, etc. can be monitored by using one device in a management section provided on each unloader barge, and whereby the total work quantity can be grasped on the basis of the work quantities collected from the unloader barges for the purpose of management of the total work quantity. SOLUTION: A hydraulic shovel and a processing device are provided on each unloader barge, and works whereby the object of processing which is conveyed by a carrying vessel is scooped by the hydraulic shovel and put into the processing device are measured to manage the total work quantity. In that case, this system comprises at least one or more unloader barges 2a, 2b, 2c, at least one or more hydraulic shovels installed on the unloader barges, work quantity measurement means provided at the hydraulic shovels for measuring the work quantities of the hydraulic shovels, first management means 25a, 25b, 25c provided on the unloader barges for collecting and managing the work quantity measured by the work quantity measurement means, and second management means 40, 42 for collecting the work quantities from the first management means and for outputting instructions to the first management means.
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