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TUNNEL HÖHNBERG

Cli­ent: DB Netz AG | Leip­zig
Pro­ject aut­hor: DB Pro­jekt­Bau GmbH | Erfurt
Con­s­truc­tion: Dach-ARGE VP Coburg Süd
Part­ners: AUGUST REINERS Bau­un­ter­neh­mung GmbH | Bare­sel GmbH | Leon­hard Weiss GmbH & Co. KG
Tech. Manage­ment: AUGUST REINERS Bau­un­ter­neh­mung GmbH
Com­mer­cial manage­ment: AUGUST REINERS Bau­un­ter­neh­mung GmbH
Object: VDE 8.1 NBS Ebens­feld — Erfurt | TU Höhn­berg
Period: 2011 to 2014

The new Ebens­feld — Erfurt line is part of the Ger­man Unity Rail Trans­port Pro­ject No. 8 Nurem­berg — Erfurt — Leipzig/Halle — Ber­lin upgraded/new line. As a sec­tion of the Ger­man Unity Trans­port Pro­ject (VDE) No. 8 with the upgraded and new Nurem­berg — Erfurt — Leipzig/Halle — Ber­lin line, the new Ebens­feld-Erfurt line (VDE 8.1) with a total length of approx. 107 km was desi­gned as a stan­dard-gauge, dou­ble-track, elec­tri­fied rail­road line for high-qua­lity pas­sen­ger and freight traf­fic. The design speed of the Höhn­berg tun­nel was the­r­e­fore also set at 300 km/h. In the Höhn­berg tun­nel, the route runs through Coburg sand­stone, blad­der sand­stone and the Lehr­berg lay­ers of the Middle Keu­per. The lowest ground­wa­ter level to be expec­ted is pre­do­mi­nantly in the area of the tun­nel floor or below. The maxi­mum mea­su­red groundwater/stratum water level is expec­ted to be up to 10 m above the tun­nel roof. 

The dou­ble-track Höhn­berg tun­nel ascends from the south por­tal in a nor­t­herly direc­tion. At approx. tun­nel meter 743, the sin­gle-track Füll­bach tun­nel pas­ses under­neath the dou­ble-track Höhn­berg tun­nel with an uphill cle­arance of approx. 15 m. The Pfarr­schrot land­fill is plan­ned in the area of the Höhn­berg and Füll­bach tun­nels. The plan­ned dum­ping height is max. 30 m. The maxi­mum rock cover of the tun­nel roof is approx. 30 m below ground level. The tun­nel tubes will be con­s­truc­ted in the par­tial excava­tions of the crown, bench and floor. The tun­nel tubes are lined with rein­forced form­work con­crete and with an all-round seal­ing of pla­s­tic seal­ing sheets (KDB).

TECHNICAL DATA
Struc­tu­ral func­tion: Rail­way tun­nel
Tun­nel length: 824 m
Excava­tion volume: 140,000 m³
Con­s­truc­tion method: Shot­crete con­s­truc­tion method (blasting/excavation)
Tun­nel sup­port: Anchors, sup­port arches, shotcrete