Ware Road

Описание

Geobrugg worked closely with RSK to understand the rockfall risk present on site. After establishing the expected low energy capacity of the rockfall (5 kJ) and the expected small debris size, an alternative solution was needed for a standard rockfall barrier. It was also determined multiple rockfall events were a possibility. 

One issue was that the projected rockfall height, although low energy, was expected to be around 5 metres, leaving the site needing a lightweight fence that is low energy but also appropriately high.

For this solution, Geobrugg adapted its debris fence with permanent foundations. The mesh type was changed to lightweight, low-aperture TECCO G45/2 to provide the appropriate energy capacity for rockfall on site and the ability to stop smaller rockfall.

An additional adjustment of the fence was required. Due to the expected rockfall height, the crank arm of the debris fence was extended from 0.3 to 1.5 metres, giving a total fence height of 5.2 metres.

CAN Geotechnical as a contractor installed the solution. They worked in difficult site conditions, with restricted access and limited lifting ability due to existing buildings.