WORK

Execution of Excavation Works, Forepoling, Rockbolting and Support System of the Terminal and Tunnel Galleries in the Ventilation Station 2

Designation of the Works

Execution of Excavation Works, Forepoling, Rockbolting and Support System of the Terminal and Tunnel Galleries in the Ventilation Station 2

Works Owner

Metropolitano de Lisboa, E.P.E.

Client

Somague, BPC, Mota-Engil,SPIE – SBMS – Prolongamento da Linha Vermelha do Metropilitano, A.C.E. (Extension of the Metro of Lisbon Red Line)

Description

Construction of a Railway Tunnel 337 m long and excavation sections varying between 58 m2 and 60 m2. Support system composed of shotcrete, swellex rockbolting and electrowelded mesh. Forepoling “umbrellas” by means of Solid Tubes Forepoling “umbrellas” have been carried out for the pre-stabilisation of the rocky mass.

Location/Site

Lisboa, Portugal

Start Date

September 2004

Execution Period

5 months

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