Deterministic approach application to productivity assessment of concrete piles

The installation of pile (drilled shaft) foundations is complicated by an enormous number of problems. They include unseen subsurface obstacles, lack of contractor experience, and site planning. These major problems and other minor ones make it difficult for the estimator to evaluate the piling project productivity, and cost. Therefore, this study is designed to assess these problems using the deterministic technique. The piling process activities' duration and productivity are addressed. Data were collected for this study through designed questionnaires, site interviews, and telephone calls to experts in different construction companies. Many variables have been considered in the piling construction process. Six models have been designed to assess productivity and cycle time. Consequently, three sets of charts have been developed, based upon the designed models, to provide the decision-maker with a solid planning, scheduling and control tool for piling projects.