Market exploration according to § 197 BVergG 2018 – MDB – Südbahn (Modular Drainage Flushing System Bahn) Text automatically translated in your browsing language Automatically translated

ÖBB-Infrastruktur AG plans to introduce a Modular Drainage Flushing System (MDB) for the regular cleaning of drains in long tunnel structures such as the Semmering Base Tunnel, Granitztal Tunnel and Koralm Tunnel. These drains must be cleared of mineral deposits (sintering) in order to lower the groundwater pressure on the tunnel shell. The MDB system enables remotely controlled flushing over distances of up to 600 meters during running railway operations. It consists of several components: • MDB flushing box: Includes rinsing tools, pumps and control. • Transport unit: Consists of a control car and an MDB transport module. • Fixed system components: These include inlet pipes, water, power and data supply, coarse traps and settling basins. Advantages of the MDB system: • Efficiency: Rinses over long lengths increase performance and reduce the number of installation locations and changeovers. • Availability: The operation of the track is only partially limited, which increases the availability of the track. • Optimization: Better use of personnel and equipment within the ÖBB. The system is installed in the tunnels on special installation points and can be operated remotely to clean the drains without interrupting railway operations. The purpose of market exploration is to collect information about the market in order to optimise the tender documentation and to inform potential interested entrepreneurs about the plans and requirements. The aim is to examine the performance and innovativeness of the market. Project Description ÖBB-Infrastruktur AG plans to introduce a Modular Drainage Flushing System for Railways (MDB) for the regular cleaning of drainage systems in long tunnel structures such as the Semmering Base Tunnel, Granitztal Tunnel, and Koralm Tunnel. These drainage systems need to be cleared of mineral deposits to reduce groundwater pressure on the tunnel lining. Components of the MDB System • MDB Flushing Box: Contains flushing tools, pumps, and control systems. • Transport unit: Consists of a driving trailer and an MDB transport module. • Fixed installation components: Includes inlet pipes, water, power, and data supply, coarse sediment traps, and settling basins. Advantages of the MDB System • Efficiency: Flushing over long distances increases performance and reduces the number of setup locations and switching operations. • Availability: The railway operation is only partially restricted, which increases the availability of the track. • Optimization: Better use of personnel and equipment within ÖBB. The system is installed at special setup points in the tunnels and can be operated remotely to clean the drainage systems without interrupting railway operations. Purpose of the Market Exploration The market exploration aims to gather information about the market to optimize the tender documents and inform potentially interested companies about the plans and requirements. It aims to investigate the market's performance and innovation potential. Text automatically translated in your browsing language Automatically translated

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