Search

In one of the smelter projects at West Kalimantan, access road construction was planned to use soil embankment above the geo-membrane layer. But this method is not highly effective considering rainfall intensity is very high in the project location. Therefore, optimization needs to be done to obtain the most effective method in terms of cost and timely accomplishment of the access road. The optimization method is done by making a comparison matrix of the output results of the running simulation schedule on software. From the several methods proposed, the duration of completion, completion costs, and resource requirements are compared and scored to get the most optimized method. Other than that, carbon emissions resulting from each method are also compared. The optimization result concluded that boulder stone layer addition with optimum quantity in the embankment is the most optimal method considering the remaining time and encountering intensive rainfall. This optimized method can result in an accelerated construction duration of 140 days, cost efficiency of 11.46%, and a reduction in carbon emissions of 44% compared to the initial method. This optimization method is expected can be applied to access road embankment projects of soft soil areas in other locations, especially in the Kalimantan region.

Contructability has been defined as the optimus usefull of construction knowledgeand experience in planning design, procurement and field operation to achieve overall can be effective, efficiency efficiency and good quality (CII, Uaustin, USA). Successful application from constructability improvement suspended commited from overall group Project Management Team for achievent of project goals. Project Management Team is referred between the project owner, architect or designer and the construction company before construction commences. Purpuse of observing is understanding set construction company manager in practice concept constructability in goal construction project for achieve improvement of performance and optimum project can be efficiency can be saved. Object observe focust in build of road and bridge in East Borneo with sample are construction company manager with questionare after that with Analysis Static Parametric. Result of Improtance Analysis is 6.32 and result of performance analysis is enough high but has separated from importance in project management road is 10.42%. Result of factor analysis can see that responden toward conceptual constructability can more complication with capability controlling time schedule. One manner can be use for controlling time implementation is do “Construction Method” as well, can do improving quality and safety implementation.