These are some of the key points in relation to reporting of accidents and dangerous occurrences: 1  Only fatal and non-fatal injuries are reportable. 2  Fatal accidents must be reported immediately to the Authority or GardaÃ­. 3  Non-fatal accidents or dangerous occurrences should be reported to the Authority within ten working days of the event.
Barrel vault is a type of vault with its semi-cylindrical arched surface allongated to form a barrel or tunnel shaped structure. Barrel vaults have been an integral part of ancient architecture and is seen in several churches and cathedrals.slide 1 of 3.ne more disadvantage of barrel vault is that it forms a series of continuous arches which are most of the time so deep that they cover a three-dimensional space. This makes the interior of the structures extremely dark as they provide very little intrusion for light.
Best Answer: In all the reading I've done, I've only seen two types of vaults developed by the Romans. The tunnel (or barrel) vault spans between two walls, like a continuous arch. The cross, or groined, vault is formed by the intersection at right angles of two barrel vaults, producing a surface that has arched openings for its four sides and concentration of load at the four corner points of the square or rectangle.