EARTH RETAINING SYSTEMS FOR URBAN RAILWAY TUNNELING PROJECTS

摘要

Construction of subsurface railway projects within the urban environment, whether for mass transit, commuter or freight rail or light rail, face unique challenges in their design and construction. There are many retaining systems available to the geotechnical engineer, however they do not all satisfy the constraints of the urban environment. The selection of an appropriate retaining system is driven by these unique constraints. This paper describes the retaining wall types available and some classification systems that are used to categorize them, and discusses the unique constraints of the urban environment and the ability of the available retaining systems to address these constraints.