ABSTRACT

This paper discusses the developments around the future underground railway station (Fig. 1).

1.2 Redevelopment of urban areas

After construction of the tunnel and removal of the existing railway viaduct, almost 37 hectares of reclaimed city ground can be redeveloped ( Delfgaauw et al., 2010). According to the plan of the Catalan architect Joan Busquets the area will have a complete makeover. New condos with almost 1,500 apartments will be built and an extensive public transport branch point consisting of an underground railway station and a bus and tram

1 DELFT RAILWAY TUNNEL

1.1 Introduction

For traffic volume and environmental reasons, the city council of Delft and the Dutch railway organization ProRail BV decided to initiate the construction of a railway tunnel through the City. The tunnel project comprises of the design and construction of a 2.4 km long four track double railway tunnel, an underground station and an underground parking. The construction of the tunnel will be mainly retained by a cut-and-cover (top-down) technique using diaphragm walls. The contract is assigned to the contractor Combination “CrommeLijn” (CCL), a co-operation between CFE NV, Mobilis BV TBI infra and Dura Vermeer Group BV. In the Design & Construct contract the engineering consultant Grontmij Netherlands BV

platform will be realised. A new city hall, designed by the Delft architects of Mecanoo, will be built on top of the tunnel (Fig. 2). This paper addresses the highly interactive design of this complex part of the tunnel project.