Introduction
Rock scaling and re-profiling includes the clearing of loose rock and the controlled removal of large blocks from cliff faces. It can be used as a short-term or localised solution to stability problems or as a precursor to more extensive works. Regular scaling may be used as a cost effective means of managing the risk from rockfall, where a cliff is prone to light surface weathering.
CAN's Capabilities
CAN Geotechnical's teams can be mobilised at short notice to inspect and remove loose debris where there is an immediate threat to personnel or property.
CAN carries out re-profiling and rock removal using a variety of methods including jacking, percussive breakers, plug and feather, expansive grouts, pyrotechnics and explosives. The methods are chosen to suit each specific location, taking into account the rock structure and site constraints.
When large blocks threaten property or infrastructure CAN may opt to install temporary restraint systems, break the rock mass in situ and lower the arisings in a controlled manner. Alternatively, the rock may be suited to lowering en masse.