ABSTRACT
The construction of deep foundations has many challenges owing to increase the unforeseen parameters controlling the process of construction. Driven piles based on the Precast Reinforced Concrete (PRC) technology is considered one of the deepest foundations types that used in water structures in Egypt such as bridges. The construction process for such projects faces many challenges as the presence of several risk factors, which have significant effects on the project objectives (i.e. cost, time, quality and scope) although there are huge investments spent on these types of projects. For that, this work addresses and identifies the expected risks associated with the main activities of driven piles execution, based on PRC technology. The technique of field survey for the purpose of data collection is used in this work. Identification and qualification analyses are conducted to define the priorities of risk factors affecting the planned activitiesas well as the Risk Breakdown Structure is developed. This will help in producing the risk register for preparing risk management plan of upcoming projects. The list of most important risk factors includes (1) Poor materials quality risk factor that affect Preparing and casting piles activity; (2) Poor system of fixing pilling machine risk factor, which affect the Positioning piles and steering the pilling machine activity; (3) Lack of specialized equipment’s, which affect Handling piles activity (4) Differences between soil boring report and in-site soil, which affect Driving piles activity. Based on the obtained results, this work provides valuable data and guidance for the Egyptian government and local partners to have an in-depth understanding of the risk factors affecting the activities associated to the construction of Driven Piles. These findings are essential for implementing further effective measures to ensure the decision makers for future development and create a more attractive market to these types of projects in Egypt.
