Stainless UK has supplied 990 stainless steel rock anchors and fixing plates to secure rock fall protection netting to the cliff face at Greve De Lecq in Jersey. The rock anchors were installed by local contractor Geomarine as part of a project to stabilise the cliff face.
Greve De Lecq is a popular tourist beach situated at the bottom of a steep cliff on Jersey. Overhanging rock was becoming increasingly unstable and the project required the removal of this material prior to fixing protective steel netting.
To secure the netting, Stainless UK supplied 20mm and 24mm diameter Grip-Rib anchors with metric threaded ends. Manufactured from a marine grade 316 stainless steel, the high tensile strength of the bars allowed smaller diameter bars to be used, so saving money with less drilling time being required. Grip-Rib has a unique continuous rib pattern which provides an excellent bond in the fixing mortar. The metric thread at the end of the bars was thread rolled onto the bar. This process produced a thread without removing any material from the bar and so maintained the strength of the threaded section. The rock netting was held in place with a 10mm thick stainless steel plate at the end of each bar.