Description
Some of the major risk factors identified in NHP are: i) Over-break in tunnel excavation, ii) Unknown subsurface conditions of geology/ ground contours, iii) Civil disorder/ terrorism, iv) Equipment failure, and v) Unavailability of resources/equipment on time. Similarly, work packages involving tunneling works possessed higher relative risks. These included construction of headrace tunnel, tailrace tunnel, penstock tunnel and underground powerhouse. This is because of the fact that tunneling projects are sensitive to even slight disturbances. Tunneling process is a serial type of production system. Therefore, in such a system the possibility for changing the workplace location is limited, except when there are many tunnel adits.
Prioritizing and estimating hydropower project construction risks: a case study of Nyadi hydropower project
Some of the major risk factors identified in NHP are: i) Over-break in tunnel excavation, ii) Unknown subsurface conditions of geology/ ground contours, iii) Civil disorder/ terrorism, iv) Equipment failure, and v) Unavailability of resources/equipment on time. Similarly, work packages involving tunneling works possessed higher relative risks. These included construction of headrace tunnel, tailrace tunnel, penstock tunnel and underground powerhouse. This is because of the fact that tunneling projects are sensitive to even slight disturbances. Tunneling process is a serial type of production system. Therefore, in such a system the possibility for changing the workplace location is limited, except when there are many tunnel adits.