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Quality and safety in constructionis priority at LEONHARD WEISSGeneral contractor network construction
S21 Bad Cannstatt
For Germany's Digital Rail
Customer: DB Projekt Stuttgart – Ulm GmbHConstruction period: 50 months Year of construction: 2021–2025
- Yellow construction site with Gleisbau Göppingen (Track Construction Göppingen)
- Execution of underground cable works requiring 80 cable crossings, 15,000 m of cable duct and 76 signal foundations
- Foundation of 16 signal brackets by means of drilled piles with a diameter of 88 cm and up to 22 m of length with railway foundation construction train, which received a special permit for this construction project
- speeding up of the project by the customer: a total of 11 weeks shutdown from May to July 2023.
- Assignment of up to 50 workers and 5 road-rail excavators around the clock.
Particularity:
S21 KTB Fildern
Customer: DB Projekt Stuttgart-Ulm GmbHConstruction period: 28 months Year of construction: 2021–2024
- Laying of cables for control, communication, and safety system/telecommunication: approx. 700 km
- Cable duct system concrete and concrete building for control and switch facilities approx. 23.8 km
- Cable assembly chutes size IV-X: approx. 85 pcs.
- Crossings: 104 pcs.
- In connection with the Digitaler Knoten (digital point of intersection) Stuttgart the railway intersection Stuttgart is to be controlled by means of digital control centres. For this reason, the control centre from Vaihingen to Böblingen and Flughafen Stuttgart is renovated. Foundation of a building for control and switch facilities and adaptation of the control centre Vaihingen and their surroundings, installation of approx. 23,800 m concrete and glass fibre reinforced plastic cable ducts, as well as approx. 85 track crossings were carried out. Laying of a total of approx. 700,000 m of cables.
- Installation of a steel auxiliary bridge over 20 m
- Installation of a steel tube crossing with a dimension of DN 800 in rocky ground
- Installation of 5,000 m side path stabilisation
Particularities:
High speed project Digital Control Station Zwieseler Spinne
Pure nature and digitalisation of railway in the region Bayerischer Wald
Customer: PINTSCH GmbHConstruction period: 14 months Year of construction: 2022–2023
- In addition to the traditional underground cable works and signal foundations for the new control centre we have been awarded the contract for the simultaneous construction of railway and road, as well as for the landscape management. In connection with the project there will be further projects like the construction and foundation of five buildings for control and switchgear facilities and two hot box detection facilities. The challenges are the particularities of the pilot project, the planning legwork, the rocky ground, and the sensitive switch gear technology still in operation.
- Further challenges are logistics, access ways and the delivery of material to the very remote, one-track railway line, as well as the requirements of environmental protection and species conservation.
- New construction cable duct: 28,000 m
- Production of crossings: 850 m
- Installation of cable-assembly chutes: 160 pcs.
- Signal foundations (partly on rocky ground): 99 pcs.
- Ramming of stabilisation of cable duct with ballast supporting slabs: 3,600 m
- Laying of cables: 288,000 m
- Underground cable works with hot box detection facilities: 2 pcs.
- Conversion of level crossings: 9 pcs.
- Outside facilities and foundation of buildings for control and switch facilities: 4 pcs.
- Outside facilities and foundation of buildings for control and switch facilities and operating buildings operated by traffic controllers: 1 pc.
Cable civil engineering Untertürkheim
Digital technology step by step
Customer: DB PSU GmbHConstruction period: 48 months Year of construction: 2022–2025
- Cable civil engineering, draw-in of cables, foundation and production of track field concentrators, new construction, conversion, and dismantling of signal brackets
- In connection with the project Digitaler Knoten Stuttgart, we were awarded the contract for creating the basis required for controlling the railway junction Stuttgart by means of digital control centres. Foundation of four track field concentrators and their surroundings, installation of approx. 16,000 m concrete cable duct, as well as approx. 70 pcs. track crossings. New construction of a total of four signal brackets, as well as the conversion and dismantling of one signal bracket respectively. Laying of a total of approx. 400,000 m cables. Foundation of 190 signals on nine different railway lines.
Electronic control centre Riedbahn (ESTW RBN)
120 km new cable routes and 500 new signals between Frankfurt and Mannheim
Customer: DB Netz AGConstruction period: 38 months Year of construction: 2022–2025
- New construction of a total of seven electronic control centres type A and three electronic control centres type Z between Frankfurt/Main-Stadion and Mannheim-main train station with 33 km track renovation incl. 53 new points, approx. 120 km new concrete cable duct with approx. 25 km ballast supports and 2,500 m track crossings, approx. 800 pcs. cable assembly chutes. After termination of the new cable conduit system approx. 700 km new cables are laid and approx. 1,200 km existing cables dismantled.
- Digital documentation of the performances carried out by means of camera systems (AI programmes) and their evaluation by the customer.
Besonderheiten im Projekt:
Electronic control centre Osterburken
Railway infrastructure in Baden-Württemberg is being updated
Customer: DB Netz AGConstruction period: 24 months Year of construction: 2021–2022
- During the complete shutdown from the end of July until the beginning of September about 6,500 m of new cable ducts of the sizes I to IIIa were installed for the new electronic control centre in Osterburken. For the production of cable conduit routes, a boundary path of 1,200 m had to be built in certain areas of railway embankments before the cable ducts could be installed. This boundary path is composed of ballast supporting slabs, which are stabilised by driven-in HEA steel beams. Along the two lines 4120 and 4900, 73 signal foundations were built for the new control, communication, and safety systems by means of driven casing pipes TECDOWN or by means of the monolithic construction method. In order to guarantee the new cable route, 43 track crossings in open construction method were built along the entire line. For building them the track system was opened and the empty conduits installed and concreted under the rails. At three neuralgic points concerning the sighting distance of the signals it was necessary to produce three new signal brackets. For the foundation of two signal brackets, two steel pipes with a diameter of 700 mm were driven in and a ridgepole with foundation basket was concreted. For the third signal bracket a complete sheet pile wall casing was driven in up until reaching a load-bearing soil layer and anchored to the ground by means of additional micro piles. In order to enable the technical equipment to communicate with each other, approximately 120,000 m cables were laid for the entire project.
ABS Hanau/Gelnhausen
ABS Hanau-Fulda – 1. Schritte zur 4-Gleisigkeit
Customer: DB Netz AGConstruction period: 36 months Year of construction: 2020–2023
- Workforce: up to 40 employees, 8 road-rail excavators, rail carriage drill.
- Preparation of execution planning
- Underground cable engineering
- Laying of cables for control, communication, and safety system/telecommunication/50Hz: approx. 400 km
- Cable duct system concrete and glass fibre reinforced plastic approx. 39 km
- Cable assembly chutes sizes IV-X: 150 pcs.
- Signal foundations driven casing pipes: 68 pcs.
- Track crossings 4-12 wheel-track adhesion control in concrete: 65 pcs. over 1 to 3 tracks
- Track crossings steel tube DN 300-600 12 pcs. over 2 to 5 tracks
- Foundation of signal brackets and signal bridges: 9 pcs.
Joint venture Taunusbahn
Renovation of control, communication, and safety system for the electrification of the Taunusbahn
Customer: Der Verkehrsverband Hochtaunus (VHT)Construction period: 12 months Year of construction: 2021
- 35 employees, 5 road-rail excavators, 2 carriage drills, Colmar, 37 km from Friedrichsdorf to Brandoberndorf in the region Hochtaunus, 7 stations and 2 stop stations
- Renovation of the 83 existing signals
- Laying of cables for control, communication, and safety system/telecommunication: on the entire stretch approx. 145 km
- 14 km concrete cable ducts incl. ballast support plates
- 700 m plastic cable ducts
- Concrete cable throughs in concrete and plastic
- Cable assembly chutes and cable installation chutes
- 63 driven casing pipe foundations
- 7 monoliths in large construction type and 7 in smaller construction type
- 18 track crossings incl. connection to cable assembly chutes
- 7 new road crossings
- 6 new construction IECC-A-modules, incl. connection to cable assembly chutes
TANV Ansbach - Crailsheim
Customer: DB Netz AG, MünchenConstruction period: 20 months Year of construction: 2020–2021
- Renovation of the fibre optic cable connection between the station Ansbach (Bavaria) and the station Crailsheim (Baden-Württemberg) on a stretch of 49 km. Production of a new cable duct system with 13 km support construction during a challenging shutdown concept with continuous nightly shutdowns (37 consecutive weekends). 51 km laying of new fibre optic cable.
