Geotechnical Works

ALGIERS METRO LINE 1 – EXTENSION 2

INFORMATION

CLIENT:
Andrade Gutierrez  Teixeira Duarte – GESI-TP – Zagope
(GMAC – Groupement Metro d’Alger Centre)

SERVICES:
Execution’s Project
Work’s Geotechnical Consultancy

BEGINING:
2009

CONCLUSION:
In Progress

LOCATION:
Algiers, Algeria

DESCRIPTION

The project is an extension to North of the Line 1 of Algiers underground , acrossing the downtown in the historic area where is located the Casbah, from the Emir Abdelkader Square to Martyrs Square, with a total extension of 1.750m. The project comprises the following works:

  • Tunnel with a total length of 1.450m;
  • Martyrs Square Station with 144m long and sections with 23m and 18,5m wide;
  • Boumendjel Ali Station with 156m long and 18,5m wide;
  • Three ventilation shafts and two shafts to connect to Martyrs’ Square and Ali Boumendjel Stations.

 

The tunnel crosses a schist mass characterized by presenting different states of weathering and fracturation degree. The ground cover of the tunnel is between 15 and 30m.