Designing reinforced rock
Article Abstract:
Reinforced rock arch design works on the basis of utilizing a rock's inherent properties to make it work as an arch. The advantages of this tunnel construction method includes reduced construction costs, increased flexibility, improved safety and minimized labor and materials. The final structure consists of the rock mass interacting with the reinforced rock arch to form the tunnel. This interaction stabilizes the structure and limits deformations toward the tunnel opening. Engineers should be able to adapt to specific site conditions to ensure the viability of constructing rock arches.
Publication Name: Civil Engineering
Subject: Science and technology
ISSN: 0885-7024
Year: 1992
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The heartbeat of the artery
Article Abstract:
The Boston Central Artery/Tunnel (CA/T) project aims to decongest Boston's roads and improve its surrounding areas. The construction of an immersed tube tunnel in Boston Harbor, which constitutes a part of the CA/T project, poses many challenges to its engineers and designers. The tunnel installation involves steel fabrication, trench excavations, blasting and dredge material disposal. Construction management takes into consideration the project's effects on Boston Harbor and time management is used to minimize disruption of the harbor's activities.
Publication Name: Civil Engineering
Subject: Science and technology
ISSN: 0885-7024
Year: 1992
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Tunneling under trains
Article Abstract:
The Singapore Ministry of Environment was forced to construct a new sewer tunnel as close as possible to the mass transit tunnels since a deeper excavation would significantly increase operational costs. The ministry decided that an underground chamber for the sewer beneath the transit tunnel alignment should be constructed early on the basis of geotechnical studies and risk assessments. The chamber would be built before the rail project so that the tunnel-boring machine for the sewer can pass 2.5 meters below the finished rail tunnels.
Publication Name: Civil Engineering
Subject: Science and technology
ISSN: 0885-7024
Year: 1999
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