ABSTRACT:

The Socorridos pumping station and water storage tunnel are located at Madeira Island, Portugal, and are part of a system conceived to reutilize the water flow from the Socorridos hydroelectric plant. This facility includes an underground cavern with 26 m high, 12 m wide and 44 m length, and a tunnel 1250 m long with a storage capacity of 40,000 m3. The rock mass at the site is of volcanic origin with most of the excavation performed in a mass of volcanic breccia and basalts but with consolidated alluvia recent deposits located in the roof arch of the cavern. A description of the main characteristics of the project is presented and the results predicted by the design are compared with the values given by the instrumentation.

Keywords:
Upstream Oil & Gas, cavern, characteristic, displacement, rockbolt, Madeira Island, calculation, construction work, primary support, shotcrete
Subjects:
Information Management and Systems
This content is only available via PDF.
2010. CRC Press, Taylor and Francis Group - Permission to distribute - International Society for Rock Mechanics
You can access this article if you purchase or spend a download.