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Not only were ground conditions difficult and the water table high, but also tunneling under an excavated canal with banks higher than the surrounding land required exceptional safety measures.

The Herrenknecht EPB Shield S-300 is the world’s largest TBM with truly unique features in terms of engineering. To master the world’s largest excavation diameter in challenging ground conditions, Herrenknecht engineers developed a so far unique cutting wheel concept especially for this project. It consists of a 7m-diameter central cutting wheel and an outer cutting wheel, located on the same level, with a maximum excavation diameter of 15.20m.

A hydraulically heavily stressed storm sewer DN 1200, requiring an urgent rehabilitation, but lying in the middle of a main road with several lanes and even in ground water: a horrific constellation in front of which stood the hanseWasser Bremen GmbH in 2004. But for the SAERTEX®-LINER System and the sewer rehabilitation specialists of Hans Brochier GmbH & Co. KG this case was a good opportunity to prove the efficiency of the hose relining procedure with "glass fibre reinforced plastic by means of steam hardening" in accessible nominal widths. Sewer damage under heavy traffic load

The natural water basin "River Jucar Basin", with a surface of almost 22,500km², is located in the East of the Iberian Peninsula. It comprises the autonomous regions Castilla-La Mancha, Communidad Valenciana and Aragon. Beside important rivers such as the "Jucar", used for the supply of drinking water, the region has abundant groundwater resources.

The National Research Council of Canada (NRC), with the financial support of the American Water Works Association Research Foundation (AwwaRF) has developed a new fuzzy-based approach to model the deterioration of large buried pipes using scarce data.