Austrian firm Doka will be showcasing at bauma its first system to be specifically designed and optimised for cut-and-cover tunnel construction. With Doka CC (Cut and Cover), different types of traffic tunnel, such as rail or road tunnels, are said to be able to be built quickly, efficiently and safely. Doka says the creation of its innovative tunnel system was made possible only by the use of hi-tech construction materials and products such as the Composite formwork beam I tec 20. The choice of high-grade