My first Magazine dsi-info-23-en | Page 86

Construction—EMEA—Germany—Excavations The Augsburg Transportation Hub: DSI supplies DYWIDAG Strand Anchors for the West Tunnel The Augsburg City project is the largest urban development to have been undertaken within the last decades in Augsburg, Germany. The redevelopment of local public transport is part of this project and is being carried out under the name of “Mobilitätsdrehscheibe Augsburg – MDA” (Augsburg transportation hub). Photos reprinted courtesy of Stump Spezialtiefbau GmbH, Germany The goal is a better connection between the city’s different means of transport and the expansion of the tram network. For this purpose, the central interchange square for busses and trams is being converted, the tracks are being relocated and two new tram lines are being introduced. The central section of the MDA is the multi- level underground structure for the entire 86 main station that also includes the construction of a 405m long, double track tram tunnel and a new station. In the up to 14m deep and approximately 70m long excavation for the West Tunnel, the contractor Stump Spezialtiefbau GmbH installed soldier piles for the soldier pile structure that was tied back in several locations. To ensure the continuation of train traffic during construction work, transverse steel girders or longitudinal structures were installed as sheeting wall systems in some areas. Temporary DYWIDAG Strand Anchors were especially used near the tram terminal loop. Here, 182 4-strand DYWIDAG Anchors with a total length of 2,964m, 140 5-strand DYWIDAG Anchors with a total length of 2,292m and 40 6-strand DYWIDAG Anchors with a total length of 724m were used.