Background: One of the challenges in construction is the occurrence of numerous accidents. In this regard, risk assessment can play an important role in reducing accidents. The aim of this study was to prepare comprehensive and quantitative checklists to determine the potential hazards in the construction phase. Materials and Methods: The present descriptive and analytical study was carried ...

construction plans are regarded as the basis of the economy in the society. any delays in the utilization of projects can cause to waste the investments and the loss of technical and economic justifications. in this paper, the barriers of on-time delivery in water projects will be scrutinized in mazandaran regional water company. so, the independent variables such as management obstacles, cultu...

Downhole drilling motors or mud motors are frequently used during the oil and gas well construction, especially for construction of directional and horizontal segments. However, low operation life of the down hole drilling motors and high rate of wear in their working elements may constrain their application due to technical and economical disadvantageousness. In this work, a high-torque modula...

GIS technology is more and more used even in the technical practice of a construction industry. In the preparatory phase of the construction, the problems of a spatial positioning (location) of the construction have to be solved jointly with the checking of the feasibility and purposefulness, the traffic projects are worked out, and the alternative, more detailed solutions of technical problems...