A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Alternative Methods for Underground Station Construction in Japan. Executive Summary
This report describes less disruptive methods used in Japan for deep excavation of stations in soft ground. It examines designs, procedures, costs and schedules, and evaluates their suitability for applications on future U.S. transit projects. The following methods were studied and evaluated: (1) standardized panel decking systems for cut-and-cover; (2) 'reverse-construction' for top-down construction; and (3) 'Kansashi-beam' for underground mining of station caverns. Section 2 gives background information about impacts of subway construction in American cities, and shows how these impacts are classified in three cities now constructing or planning new systems. Sections 3 to 5 deal with specifications and procedures for three kinds of excavation technologies: standard decking procedures used in cut-and-cover tunneling as well as in stations and other deep excavations in Japan; the top-down reverse construction methods used in particularly difficult circumstances; and underground mining of stations in soft ground by a technique where two shield-driven tunnels are joined by a mined connecting platform. Sections 6 and 7 focus on the schedules, costs, and impacts of the methods discussed in Sections 3 and 5. Section 8 describes a new method for the continuous casting of concrete tunnel liners. Conclusions and recommendations are given in Section 9. Appendices provide supporting information.
Alternative Methods for Underground Station Construction in Japan. Executive Summary
This report describes less disruptive methods used in Japan for deep excavation of stations in soft ground. It examines designs, procedures, costs and schedules, and evaluates their suitability for applications on future U.S. transit projects. The following methods were studied and evaluated: (1) standardized panel decking systems for cut-and-cover; (2) 'reverse-construction' for top-down construction; and (3) 'Kansashi-beam' for underground mining of station caverns. Section 2 gives background information about impacts of subway construction in American cities, and shows how these impacts are classified in three cities now constructing or planning new systems. Sections 3 to 5 deal with specifications and procedures for three kinds of excavation technologies: standard decking procedures used in cut-and-cover tunneling as well as in stations and other deep excavations in Japan; the top-down reverse construction methods used in particularly difficult circumstances; and underground mining of stations in soft ground by a technique where two shield-driven tunnels are joined by a mined connecting platform. Sections 6 and 7 focus on the schedules, costs, and impacts of the methods discussed in Sections 3 and 5. Section 8 describes a new method for the continuous casting of concrete tunnel liners. Conclusions and recommendations are given in Section 9. Appendices provide supporting information.
Alternative Methods for Underground Station Construction in Japan. Executive Summary
B. C. Paulson (author)
1982
57 pages
Report
No indication
English
Underground Transit Station Construction in Japan
| ASCE | 2021
Online Contents | 2003
Wiley | 2001