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Rehabilitation of Mont-Royal Tunnel
Abstract: The Mont-Royal Tunnel (MRT) is a railway tunnel located in Montreal, Canada. This 100-year-old double track tunnel connects Downtown Montreal to the north side of the Island of Montreal by passing through Mount Royal mountain. The tunnel is approximately 5 km long, 9.6 m wide and 4.4 m high, with a constant 0.6% grade. The tunnel was bored through different types of ground, varied from hard...
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First Subway in the Philippines - Part I General Information and Planning
Abstract: Metro Manila Subway Project (MMSP) is the first planned subway project in the Republic of the Philippines, which is planned to be constructed in Metro Manila. This project is funded by Japan International Corporation Agency (JICA) and is considered as the project that will have a huge impact to Metro Manila in terms of upgrading the transportation standards. Upon completion, this will have an...
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Construction of REM Project in Montreal
Abstract: The Montreal Réseau Express Métropolitain (REM) is the fourth largest automated transportation system in the world. The design fosters environmentally sustainable transportation. As a single, integrated transportation network, the REM will be connected to bus networks, commuter trains and the Montréal metro. The REM represents construction costs of approximately 6.3 billion Canadian dollars....
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A Study on Advanced Inspection of Reinforced Concrete Lining for Expressway Tunnels
Abstract: Inspections of tunnels managed by East Japan/Central Japan/West Japan Expressway Co., Ltd. are regulated by the Ministry of Land, Infrastructure, Transport and Tourism (MLIT) Road Bureau's Road Tunnel Regular Inspection Guideline, which was revised in February 2019. This revision introduced an advanced scheme for inspecting lining surfaces of unreinforced concrete in tunnels by making them a...
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Guidelines and Methods on Segmental Tunnel Lining Analysis andDesign – Review and Best Practice Recommendation
Abstract: Methods for analysis and design of segmental tunnel linings are presented inconformance with standards and guidelines from Austria (ÖVBB), France (AFTES), Germany(DAUB), Japan (JSCE), Netherland, United States (FHWA) and International Tunneling Association(ITA). Effect of embedment loads on segments is analyzed using elastic equations, a beam-springmodel, and Finite Element or Finite Difference...
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Lessons Learned from the First NATM Tunnel in California, Devil’s Slide Tunnel
Abstract: The Devil’s Slide tunnel is located along the California coast between Pacifica and Montara, west of the San Francisco Bay in the USA in a region with steep and unstable geological formation. The twin tubes were constructed beneath San Pedro Mountain using the New Austrian Tunneling Method (NATM). Each tube is 9m wide x 6.8m high and 1300m long making it the longest highway tunnel in...
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An analysis of FIDIC red book contractual framework applied to underground works
Abstract: FIDIC red book contractual framework is widely used in civil works contracts worldwide. Nonetheless some clauses deserve to be revised to allow their correct application to underground works. In particular the geologic risk sharing principles are not integrated in FIDIC standard contract. On the other hand, about risks other than geology related ones, the FIDIC framework affects some of them...
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When does brittle failure become violent? Spalling and rockburst characterization for deep tunneling projects
Abstract: Brittle behavior in the form of spalling, wall buckling and sudden shear release can occur with audibly dramatic results but often no immediate impact on safety or tunnel operations. In heterogeneous geomechanical domains, however, the potential for damaging energy release is possible. Brittle spalling can be easily predicted with conventional and advanced rock mechanics tools. The prediction...
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