No document
Search & filter
Search for a publication
Search & filter
List of products by author: T. Saito
-
Connecting Shield Tunnels to Deep Undersea Caisson Arrival Shaft
Abstract: In a thermal power plant renewal project, seawater intake shield tunnels were connected to a seawater intake structure built by the pneumatic caisson method. The shield machine bored a tunnel to a point at the bottom of the seawater intake structure (caisson) doubling as arrival shaft. Due to high water pressure (0.34 MPa) at the shield machine arrival point, there was concern regarding sludge...
0,00 € -
Development of new construction technology for under-railway structure with small overburden and high frequency of...
Abstract: The Ground-Cutting JES (Joint Element Structure) Method is a new excavation technique. The JES method is a trenchless construction method used in underpass construction. The new technique enables around-the -clock construction causing little surface displacements in a site with a small overburden, including obstacles, while many trains are operating. It is therefore superior to the original JES...
0,00 € -
Examination of New Joint Formation Method of Lining Concrete
Abstract: For rapid construction system of lining concrete for tunnel structures, the development of a long span tunnel formwork carriage system that extends one construction span to 18 m or more has been worked on. In order to reduce the risk of the occurrence of cracks at unspecified locations, a method to form crack-inducing joints was proposed by installing metal plates at the mid-span of the tunnel...
0,00 € -
Study on Damage to Railroad Mountain Tunnel Caused by Earthquake and Seismic Retrofit of Shinkansen Tunnel
Abstract: This paper outlines seismic damage to tunnels and seismic retrofit to prevent heavy seismic damage to mountain tunnels. Some tunnels had suffered heavy seismic damage from earthquakes in 2004 and 2007. Through detailed investigation of tunnels and ground properties around tunnels, authors confirmed the cause of the seismic damage. And, based on the damage analysis, authors categorized the...
0,00 €
