Building Information Modeling (BIM) is a progressive delivery method that integrates multiple project sources into a 3D model toolbox. The construction schedule becomes the 4th dimension (4D) with the cost component becoming the 5th dimension (5D). 5D BIM allows the project lifecycle, from concept to construction, to be harnessed and shared in a common environment. The toolbox generates multi parameter models that permit to manage several strategic project data. BIM precision is related to the level of development (LOD), which increases with each single project life phase (from preliminary to detail and construction design). This paper provides useful case studies of BIM applied to cost estimating, scheduling and project control in underground projects.
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