Tunneling Conveyor Projects

Baumgartner"

Baumgartner Tunnel, St Louis, USA

Commissioned 2005
Role- Designer
Client- Frontier Kemper

This project consisted of a 3.6m diameter tunnel for the Metropolitan St. Louis (Missouri) Sewer District being bored 2004-5. The belt conveyor was 6.1 km, 600mm, 200 tph, 4 horizontal curves, 4 intermediate drives

Guadarrama"

UTE Guadarrama, Spain

Commissioned 2004
Role- Designer
Client- Continental Conveyor

This project consisted of two, 30 km tunnels under the Guadarram Mountain Range as part of the Madrid to Noroeste High Speed Rail Line. Each consisted of 2 conveyor flights: 13.4 km 1,150 tph, 900mm, 1,120 kW, 3 Intermediate Drives and 15.0 km, 1,150 tph, 900mm, 1,280kW This 15km, 915mm wide belt carried 1035 tph with a total connected power of 1250kW. The system included one 250kW Main Drive and four 250kW carry-side tripper drives within the single flight system. There are two horizontal curves.

Barcelona

Barcelona Metro UTE Linea, Spain

Commissioned 2004
Role- Designer
Client- Continental Conveyor

This advancing conveyor followed a tunnel boring machine for a metro train system 8.4 km. This 1000mm wide belt is carrying 1500 tph with a total connect power of 1600kW. The system includes one 320kW Main Drive and four 2x160kW carry-side tripper drives within the single flight system. There were eight horizontal curves ranging from 280m to 350m radius.

Yucca

Yucca Mountain, Nevada, USA

Commissioned 1995
Role- Designer
Client- The Conveyor Co

This advancing conveyor followed a tunnel boring machine for 7.9 km into and out of a mountain. The 900mm wide belt run at 3.2 mps and carried 1000 tph of -75mm rock. This conveyor was ā€œUā€ shaped and included 2 horizontal curves turning the conveyor a total of 190 degrees. Six intermediate drives were utilized on both carry and return sides of the conveyor.

Tarp

TARP, Chicago, USA

Commissioned 1994
Role- Designer
Client- Continental Conveyor

This advancing conveyor followed a tunnel boring machine for 14 km. A 900mm wide belt running 3.6 mps carried 1500 tph of -50mm sandstone. Since the conveyor profile included 17 horizontal curves (each less than 400 m radius), controlling belt tensions was critical. As such, 10 intermediate drives were strategically located along the length (including the return belt) to facilitate negotiation of the tight horizontal curves.