Owner
NTA - Metropolitan Mass Transit System Ltd.
Client
NTA - Metropolitan Mass Transit System Ltd.
Cost
$5 billion USD
Timeframe
April 2011
— February 2020
Services performed
Dr. Sauer & Partners provided services as Checking Engineer for the design of all underground tunnels (NATM & TBM) and Cut & Cover structures.
Description
The Red Line links the most congested areas of the city of Tel Aviv, operating along 24km and serving 34 stations. The light rail trains run above ground as well as through a tunnel section of 11km in length, connecting ten underground stations. Excavation of the twin tube tunnels was undertaken by TBMs. The tunnels are connected by cross passages spaced at a maximum distance of 250m. Station boxes were constructed using diaphragm walls and piles. The Red Line should was inaugurated in 2023 and transport 70 million passengers per year.
Geology
The geology comprises predominantly sand and cemented dune sands called Kurkar, and also clay.
Location
Tel Aviv, Israel
Highlights
- First underground service in Tel Aviv
- Underground structures beneath groundwater level
- Difficult ground conditions and complex urban tunnelling
Route Map of the Red Line
Galei Gil Shaft used to launch TBMs