Geotechnical Works

MASSAPEZ SLOPE

INFORMATION

CLIENT:
Governo Regional da Madeira –Direcção Regional de Ordenamento do Território

SERVICES:
Technical Report
Final Design
Technical Assistance

BEGINING:
2006

CONCLUSION:
2006

LOCATION:
Massapez Village, Madeira Island, Portugal

DESCRIPTION

In February 2006, after an intense raining period, a fissure of about 1m open was found at the top of the slope. This project intended to prevent any possible injury that could result from the fall of an unstable rock mass of about 30 000m3, from 120m high, to the Fajã village located at the bottom.
The adopted stabilization solution consisted on the removal of the instable rock mass. The excavation, with about 50m high, was executed along 2V/1H slopes, with 3m wide and 10m vertically spaced berms. A systematic 7cm thick shotcrete lining with metallic fibers associated to Ø32mm nails with 4 to 12m length was applied along the final excavation slope.