Tenders Are Invited For Repair And Maintenance Services – Maintenance And Repair Work On The Einhorntunnel G ... in Germany

Work Detail

Repair And Maintenance Services – Maintenance And Repair Work On The Einhorntunnel Gmünd B29. The Central Components For The Technology In The Assigned Tunnel Areas Are Housed In The Three Operational Buildings West, Middle And East. While The Two Outer Operational Buildings Are Underground But Still Accessible From Above, The Operational Building In The Middle Of The Tunnel Can Only Be Reached From The Tunnel. Essentially, The Systems For Energy Supply, Lighting And Ventilation With The Associated Measurement Technology And Controls Are Installed In The Company Buildings. So That All Subsystems Can Work Together, The 3 Operational Buildings Are Networked With Each Other In Multiple Redundant Ways. The Entire Technology Is Controlled By 2 Redundant Plcs, Which Are Controlled By The Higher-Level Central Control System. The Data And Video Images Are Transmitted From The Tunnel To The Integrated Rescue Control Center In Aalen Via An On-Site Radio Link, From Where Tunnel Operations And Technology Are Monitored Around The Clock. The Operational Tunnel Equipment In The Gmünder Einhorn Tunnel Includes The Following Parts: - The Tunnel Lighting (In Modern Led Technology), - The Escape Route And Safety Lighting, - An Active Guidance Device That Makes Lane Detection Easier, Especially In The Pivoting Areas, - The Traffic Control And Tunnel Barrier Systems Wayfinding Signs On Both Sides Of The Tunnel, - A Bos Radio System (In Analogue And Digital Technology) In The Tunnel, The Operating Buildings And The Rescue Tunnel Escape Stairwells And The Nearby Above-Ground Tunnel Area, - An Emergency Call And Telephone System (Using Modern Voip Technology), - A Video System With Video Detection And Over 100 Cameras, - A Loudspeaker System With 53 Boundary Horns And 34 Classic Pressure Chamber Loudspeakers, - An Automatic Fire Alarm System In Which Not The Temperature Is Measured More Selectively At Regular Intervals, But Continuously Over The Entire Length Of The Tunnel - The Tunnel Drainage As A Whole 17 Pumps In 5 Pumping Stations And - 2 - Ebb_0_34259875_2383809997.Doc - As Of December 19, 2024 - The Controls For The Tunnel Ventilation, Whereby The Maintenance Of The Fans And Ventilation System Is A Separate Maintenance Contract. The Ventilation Concept Stipulates That The Exhaust Gases In The Entire Tunnel Are Sucked In Via A Spherical Cap (Hollow Ceiling) To The Middle Operating Building And Are Blown Out Upwards Through A Chimney By 2 Exhaust Air Machines, Each With An Output Of 420 Kw. For This Purpose, A 130 M Long Exhaust Chimney With A 6.5 M Diameter Was Built Up Through The Mountain. In The Event Of A Fire, Smoke Extraction Is Supported By 3 Jet Fans, Each With 22 Kw, Near The West Portal And 8 Identical Jet Fans Near The East Portal. All Of These Fans Can Be Continuously Controlled Via Frequency Converters Or Switched On Directly Via Soft Starters If The Electronics Fail. Furthermore, Various Ancillary Trades Were Installed To Ensure Safety

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