In calculating the time of use of equipment, it can be used the formula contained in the Budget Analysis Executor as well as heavy equipment and its use in accordance with the type of work done.
heavy equipment selection is done at the planning stage where type, quantity, and tool capacity are the determining factors. Not every heavy equipment can be used for any construction project, therefore the selection of the right heavy equipment is necessary. In the event of errors in the selection of heavy equipment there will be delays in the implementation, the cost of the project is swollen, and the results are not in accordance with the plan.
The productivity of the machine is in fact unequal in comparison to the ideal conditions of the equipment due to certain things such as topography, operator expertise, operation and maintenance of equipment. The hourly productivity of a tool that must be taken into account in planning is the standard productivity of the tool under ideal conditions multiplied by a factor called work efficiency. The value of work efficiency is difficult to determine precisely but based on experiences can be determined work efficiency is close to reality.
How the effectiveness of the tool works depends on several things:
- The ability of the tool operator operator.
- Selection and maintenance of tools,
- Planning and setting the location of the tool,
- Topography and volume of work,
- Weather conditions,
- Method of execution tool.
In the construction of road projects the use of heavy equipment is required in accordance with the needs of both the field condition, the condition of the tool, the operator, so that the productivity of the tool can be maximized. Furthermore, each machine's productivity will be explained as follows:
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