Digital planning refers to the use of digital technologies and tools to make planning processes more efficient and effective. In particular, this includes the use of BIM methodology and digital building models. In HOLINGER's understanding, BIM is a key component of digital planning. For HOLINGER, digital planning is much more than BIM and 3D models. Digital planning enables teams to collaborate better, exchange information in real time and make informed decisions. Data should be utilised as consistently as possible and without media discontinuity throughout the entire planning process. This leads to greater transparency, improved communication and optimised use of resources. Overall, digital planning helps to implement projects more successfully.
Our service portfolio
BIM
- management
- coordination
- Modelling
- Integrated data management
GIS
- Complex cartography
- Network information systems
- Sewerage cadastre
- Data management, interfaces
CAD MODELLING
- 3D modelling
- 3D pipework planning
- Visualisations
- R+I diagrams with parts lists
- BIM-2-Field
- Rendered representations from 3D model
- Virtual model tours
As part of the project, a new EMC stage is being planned and will be realised by 2027. The project was launched as a BIM project right from the start. The regular exchange of models between the planners and the use of model-based issue management (BIMcollab) make collaboration in the project much easier. The use of model-based issue management has already been practised at HOLINGER for some time in many projects. This project was the first time that breakthrough planning was successfully automated using software. The new digital method and visualisation of the subsequent breakthroughs as volumes brought considerable simplification for everyone involved.
For over 60 years, the Lake Constance Water Supply has been supplying around four million people in Baden-Württemberg (D) with clean drinking water. In order to guarantee a safe drinking water supply for the coming decades, the project ‘Source of the future. Water for Generations’ project was launched. Its realisation will take until around 2041 and will require an investment of several hundred million euros.
One important measure within the project is the construction of new extraction facilities and pipelines on Lake Constance. In future, the water will be extracted in lake waterworks with independent extraction pipes. Ultrafiltration plants at the shore locations will use a process with a pore size of 20 nanometres to safely remove unwanted organic and particulate solids and thus also keep the larvae of the quagga mussel out of the downstream technical facilities and treatment stages.
The engineering company HOLINGER was commissioned together with the engineering firm LOPP in 2021 to take over the planning for the new lake waterworks. The planning scope initially includes two waterworks with a treatment capacity of 335,000 m3 of drinking water per day per waterworks. The special-purpose association will later decide on the potential construction of a third lake waterworks.
Due to the complexity of the project and the large number of companies involved, which are organised in 10 lots, it was clear from the outset that the project would be planned using 3D models. At this point, HOLINGER already had significant experience with digital planning. A conscious decision was made in favour of the open BIM approach and thus the exchange of IFC models. The models of the four planning locations were exchanged every fortnight and an updated coordination model of the respective planning location was created. The planners involved collaborated mainly on the model, including the use of model-based issue management with BIMcollab. The project proves that Open BIM also works in a very complex project.
ProRheno AG's Basel WWTP went into operation in 1982 and is now reaching its capacity limit with 260,000 connected inhabitants. As part of the project, the Basel WWTP will be expanded and its process technology upgraded between 2018 and 2025 while it continues to operate. The investment costs amount to around CHF 300 million.
The mechanical stage will be completely rebuilt and designed for a higher load. In addition to the current elimination of organic load and phosphorus, the WWTP will be designed for the elimination of ammonium and total nitrogen. The SBR process (Sequencing Batch Reactor) was selected as the biological stage for this. This will also be newly built and comprises nine SBR reactors and, with its 140-metre-long headworks, forms the core of the plant.
The new Water Protection Act, which came into force on January 1, 2016, obliges various WWTPs in Switzerland to build a new stage for the elimination of micropollutants (MV stage). In the case of the Basel WWTP, this consists of ozonation, a stage for adsorption on powdered activated carbon and sand filtration.
On the sludge treatment side, the process is extended to include digestion. The resulting digester gas is treated and fed into the local natural gas grid. The sludge will continue to be dewatered in the existing sludge dewatering system and incinerated in the existing sludge incinerator. The process water from the sludge dewatering system is now treated using the Anammox process (anaerobic ammonium oxidation) in order to reduce the nitrogen load in the plant via the return flows.
The implementation project was planned for all plant components using Autodesk REVIT 3D. BIM360 from Autodesk is used for model coordination. Model and plan checks by third-party companies are handled using the review tools in BIM360 and task management. A large part of the assembly work is carried out on site from the model or via contractor plans, which are derived from the 3D model provided to them.
For the second construction phase, the decision was made together with the construction company to implement the MV stage, digestion and operations building objects using the BIM-to-Field method and to dispense with 2D reinforcement plans.
buildingSMART International is leading the digital transformation by enabling better collaboration and digital workflows with its solutions and standards. Digital workflows help you collaborate and communicate efficiently at all stages of the project and asset lifecycle. Digital workflows are critical for projects involving many disciplines, software applications and organisations that need to collaborate and share information to be successful. Interoperable, open, international standards for BIM that go beyond the traditional design and construction phases and enable a comprehensive digital environment for the entire project and asset lifecycle offer significant benefits. buildingSMART International enables the development, creation and adoption of open digital standards for productive workflows. The goals of the buildingSMART community are achieved through three core programmes: Standards, Compliance and Users.
«Bauen digital Schweiz / buildingSMART Switzerland» (BdCH / bSCH) is the leading platform for the digital transformation of the Swiss construction and property industry and comprises institutions, associations and companies along the entire value chain. The aim is to enable digitalisation and thus end-to-end cooperation between all parties involved throughout the life cycle of a building. We develop practical tools that can be used by all players in the construction and property industry and use best practices to demonstrate the concrete benefits of digital transformation. As a think tank, we increase the competitiveness of the Swiss construction and real estate industry, promote dialogue among all stakeholders and contribute to regulation and standardisation, both nationally and internationally.