Abstract: (8106 Views)
Driven Precast Reinforced Concrete Piles (DPRCP) is extensively used as a foundation for bridges constructed over canals
in Egypt in order to avoid the diversion of water canals. The objectives of this research include identifying the main activities
of DPRCP execution in the bridge-construction industry in Egypt and the risk factors affecting them. In addition, assessment of
the effects of these risk factors on the quality of activities of DPRCP. Four activities are identified in order to execute the
process of construction of DPRCP. These activities include: preparing and casting piles, positioning piles and steering the
driving machine, handling piles, and driving piles. Thirty one risk factors affecting the DPRCP activities execution are
identified. A survey was executed in Egypt concerning probabilities of occurrence of these factors and their impacts on the
quality of activities of DPRCP. In addition, a new membership function is introduced to represent the quality of activities and
used in a fuzzy model for factors assessment. Results showed that the proposed membership function can be used effectively to
assess the quality of activities associated with the construction of DPRCP. A list of risk factors is highlighted to show the most
critical risk factors that help in preparing the quality management plan for the upcoming similar projects. The gentile
distribution of data obtained for the different activities proved that the investigated risk factors for the DPRCP in this study
are significant.