- Client: Arxada AG, Visp
- Site manager/reference person: Dario Micic, Arxada
- Project engineer: Nicola Volken, Ingenes AG
- Site manager: Iwan Rieder
- Foreman: Manuel Ryter
- Construction period: July 2024 - August 2025
- Construction costs: CHF 2.1 million
Technical data:
- 3'300m² wall formwork
- 1200m³ concrete
- 165 tons of reinforcement
- 7pcs prefabricated stair elements
- 300m of service line construction
Project description:
Arxada AG operates two raw gas compressors within the gasoline splitting plant in Lalden, which have been in operation since 1965. The compressed raw gas is an intermediate process stream in the production of various basic chemicals for the Visp site. The main quantities of the resulting basic chemicals are purchased by Arxada and DSM and processed into higher-value fine chemicals.
The plant has become noticeably outdated, which means that a replacement for the existing compressors needs to be built and the capacity of a single raw gas compressor needs to be adapted to the current raw gas requirements.
A new compressor building is therefore planned, which will include a larger raw gas compressor.
Requirements:
- The construction work was all carried out in compliance with Arxada's strict safety requirements (EHS manual)
- Earthworks in groundwater (excavation pit stabilization and dewatering)
- In-situ concrete walls with a height of up to 21 meters, executed using climbing formwork
- Execution of the master builder work during ongoing Arxada operations
