Herrenknecht Formwork designs and produces segment moulds for tunnel projects of all cross-sections and for any required segment thickness and geometry. And has been for more than ten years now.
Precisely manufactured segment moulds are necessary so that a sustainably high-quality structure can be created without disruption during tunnelling. Our experienced team of designers, engineers and technicians calculates and produces dimensionally stable moulds with which thousands of segments weighing up to several tonnes each are produced in continuous operation.
Herrenknecht Formwork's innovative mould bottom concept ensures optimized compaction of the fresh concrete in the mould. Simple and safe operation of our moulds allows a smooth manufacturing process in the segment plant. In the project planning phase, working with you we determine the required number of moulds and the resulting configuration. In this way we ensure a high level of efficiency and thus optimum cost-effectiveness.
Vertical or inclined shafts make specific demands on the design of the segments. Ring length, segment thickness and conicity must be adapted exactly to the individual project. Only in this way can the advantages of mechanized shaft construction with rock stabilization and lining in one pass be fully exploited. The maximum dimensional accuracy of Herrenknecht Formwork shaft segment moulds always ensures consistently high production quality. On the basis of our worldwide project expertise, together with you we define the formwork concept that exactly meets your needs.
Specialists from Herrenknecht Formwork have worked with Austrian construction company PORR and the Austrian Federal Railways (ÖBB) to develop track slab moulds. With smooth, break-free surfaces the special track slabs allow comfortable and safe travel on high-speed lines. Many years of successful operation of routes built on track slabs confirms both the overall slab track system as well as the quality of the moulds used. With absolute precision to a tenth of a millimetre, moulds from Herrenknecht Formwork implement the extreme dimensional accuracy required here. It is crucial for the exact fit in height and location of the rail mounted on the slabs.
Selected welding processes used in the manufacture of the mould avoid stresses due to uneven heat application and distortion of the individual components. The smoothness of the joints is achieved by a high-precision adjustment system for curve areas. Together with you, we plan your mould requirements for economical and efficient track slab production and support you reliably at every stage of your project.
Combisegments® from Herrenknecht Formwork meet the need for future-proof and reliable concrete protection in tunnelling with the segmental lining process. Combisegments® are corrosion-resistant and hydraulically optimized segments that are fitted with a Combisegments® protective lining and an integrated sealing frame during production.
Tailored to the customer and the project, the Combisegments® protective lining is designed and developed in tandem with the associated mould technology. In series production, proven and corrosion-resistant materials are used and benchmarks are set in quality control. Without any intermediate steps, the supplied concrete protection lining is placed in the respective segment mould. Subsequent gasket assembly is not required.
- Proven materials
- Designed specifically for the project
- Precisely manufactured
- Shorter construction time
- Comprehensive corrosion protection
- Easier working conditions
Tunnelling with Combisegments® completely eliminates the need for time-consuming welding and inspection work. To ensure a durable concrete bond, on the back and in the area of the sealing level the concrete protection lining is provided with an anchor structure. Required erector dowels and additionally needed segment inserts are integrated into the Combisegments® protective lining by Herrenknecht Formwork during production. Combisegments® are thus transported and installed like conventional segments. At the same time, the inserts allow the attachment of supply lines during the construction phase. After tunnel completion, openings can be sealed watertight with appropriate sealing caps.
Here the robot system designed by Herrenknecht Formwork works hanging from a crane bridge, which, with high rigidity, moves on a portal along the entire work line. The robot opens and closes the mould and handles cleaning and oiling as well as installing the in- serts. Due to their simplicity and yet high requirement for accuracy, these activities are predestined for the use of robots.
The robot system designed by Herrenknecht Formwork and Marti works hanging from a crossbeam, which, with high rigidity, moves on a portal along the entire work line. The robot opens and closes the mould, cleans the moulding surfaces, applies separating agent and installs the inserts. Due to their simplicity and yet high requirement for accuracy, these activities are predestined for the use of robots.
During the entire process we bear in mind project-specific requirements as well as the efficient interaction of the individual components. Herrenknecht Formwork has many years of experience to work with you to competently and professionally design and implement the most suitable type of production for your project.
In stationary production, all moulds are fixed securely to the shop floor. Specific vibration dampers and adjustable bearings ensure optimal concreting results. The advantages of stationary production are fast and uncomplicated set-up combined with high production output. If required, it can be adapted to existing production facilities with little effort.
When planning your stationary production, Herrenknecht Formwork takes into account all project-specific factors such as tunnel length, planned advance rate as well as individual space conditions and personnel situations. Thanks to needs-based implementation, a stationary production line planned and realized by Herrenknecht Formwork delivers optimal cost-benefit efficiency.
In carousel production, the moulds are transported by drive systems to the individual work stations. After demoulding, cleaning, reinforcement installation and concreting, they are automatically conveyed into a heated curing tunnel. Carousel production is characterized by a high degree of process automation and a constant, high production rate. In addition, carousel plants systematically reduce personnel and space requirements.
Carousel plants from Herrenknecht Formwork enable optimized just-in-time production. Depending on the production requirements, we offer planning and implementation of individually planned single and multiple carousels. All components used have the goal of ensuring a consistently high level of plant availability. If desired, we can support you with remote maintenance of the locally installed PLC control.
1. Production concept
Consulting right from the start: Elaboration of production concepts (stationary or carousel plants) considering local conditions such as available space and personnel, budget, etc. Read more
2. Permits management
- Support for preparation of applications for construction permits
- Support for the issue of documents for fire protection / fire loads, emissions and immissions, safety concepts, etc.
Take advantage of our know how from more than 200 segment production projects worldwide.
3. Construction of building
Foundation works, planning, supply and assembly of the factory building, media, infrastructure, etc.
We take up planning of parts or as a whole as well as supervision of the construction of the segment factory including specialist planning.
4. Logistics and infrastructure
Indoor cranes, gantry cranes, batching plants, heating systems for moulds or for complete building, compressed air generation and distribution, data recording, 3D measuring, etc.
Herrenknecht Formwork offers the complete production equipment for segment production.
- Reduction of interfaces
- Use synergies efficiently
- Save time and money
5. Concrete logistics
Concreting by means of a truck or better with the help of a crane-based concrete distribution system? What is the most suitable degree of automation? Having an eye on the overall concept, we give you expert advice and supply customized equipment.
6. Segment handling and finishing
Vacuum lifters, tilting and turning tables, segment clamps, gasket gluing frames or segment transport trolleys on rails: our portfolio includes everything you need in order to bring your recently concreted segments from A to B.
7. Personnel service
Our personnel platform PRECAST EXPERTS links competent segment experts with project owners all over the world.