Thames Tideway Tunnel London

The project

London's sewers are reaching the limits of their capacity. Originally designed for two million people, over eight million people now live in the city. In order to modernize the outdated sewage system from Victorian times, the company NFM Technologies Lyon has launched the "Thames Tideway Tunnel" project. With a total length of 25 kilometers, it is one of the largest tunnel projects in the British water industry. A fascinating project that is helping to take London's sewage system into the future.

The segmental lining

The wastewater tunnel was excavated using two NFM tunnel boring machines with a diameter of 8.2m. During the TBM excavation, the segment rings made of precast concrete parts were installed, which form the primary lining. Each ring consists of five standard segments, two ridge segments and a key segment. The segmented primary shell in combination with the cast concrete secondary shell gives the tunnel an internal diameter of 7.2 meters.

Our services

Our robust erector is characterized by a stable design and enables short cycle times. Its easy maintenance ensures a smooth operation.

Our segment crane system has been specially designed for harsh environmental conditions. It combines reliable components with a sophisticated design to ensure safe and efficient placement of the segment elements. In addition, the safety concept can be customized according to the specific requirements of our customers.

Scope of delivery