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Domain Tunnel
The Domain Tunnel is a road tunnel located in Melbourne, Australia, which carries traffic westbound from the Monash Freeway to the West Gate Freeway, running under the Yarra River and Kings Domain. The tunnel is part of the CityLink Tollway operated by Transurban and provides a bypass of the central business district. History The tunnel was constructed between 1996 and 1999 by Transfield-Obayashi Joint Venture. It was officially opened to traffic on 16 April 2000 with a temporary 60 km/h speed limit, and was free to use until 26 April. On 23 March 2007 just before 10am, three trucks and four cars collided in the Burnley Tunnel. The crash resulted in multiple explosions and a subsequent fire. This forced the evacuation of motorists from the Burnley Tunnel. The Domain Tunnel was closed and any drivers in the Domain Tunnel at the time drove out normally. Cross passage tunnels between the Domain and Burnley Tunnels were used by evacuees to exit from the Burnley Tunnel i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CityLink
CityLink is a network of tollways in Melbourne, Australia, linking the Tullamarine, West Gate and Monash Freeways and incorporating Bolte Bridge, Burnley Tunnel and other works. In 1996, Transurban was awarded the contract to augment two existing freeways and construct two new toll roads – labelled the Western and Southern Links– directly linking a number of existing freeways to provide a continuous, high-capacity road route to, and around, the central business district. CityLink uses a free-flow tolling electronic toll collection system, called e-TAG. CityLink is currently maintained by Lendlease Services. History The first mention of a southern and western inner city bypass was in the 1969 Melbourne Transportation Plan. The plan advocated for reservations and set aside sinking funds for the new inner city freeway system. It was one of the few freeways connecting to the inner city (along with the Eastern Freeway to Clifton Hill) which was not later abandoned. The pro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cut And Cover
A tunnel is an underground passageway, dug through surrounding soil, earth or rock, and enclosed except for the entrance and exit, commonly at each end. A Pipeline transport, pipeline is not a tunnel, though some recent tunnels have used immersed tube construction techniques rather than traditional tunnel boring methods. A tunnel may be for foot or vehicular road traffic, for rail transport, rail traffic, or for a canal. The central portions of a rapid transit network are usually in the tunnel. Some tunnels are used as sanitary sewer, sewers or aqueduct (watercourse), aqueducts to supply water for consumption or for hydroelectric stations. Utility tunnels are used for routing steam, chilled water, electrical power or telecommunication cables, as well as connecting buildings for convenient passage of people and equipment. Secret tunnels are built for military purposes, or by civilians for smuggling of weapons, contraband, or people. Special tunnels, such as wildlife crossi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Buildings And Structures In The City Of Melbourne (LGA)
A building, or edifice, is an enclosed structure with a roof and walls standing more or less permanently in one place, such as a house or factory (although there's also portable buildings). Buildings come in a variety of sizes, shapes, and functions, and have been adapted throughout history for a wide number of factors, from building materials available, to weather conditions, land prices, ground conditions, specific uses, prestige, and aesthetic reasons. To better understand the term ''building'' compare the list of nonbuilding structures. Buildings serve several societal needs – primarily as shelter from weather, security, living space, privacy, to store belongings, and to comfortably live and work. A building as a shelter represents a physical division of the human habitat (a place of comfort and safety) and the ''outside'' (a place that at times may be harsh and harmful). Ever since the first cave paintings, buildings have also become objects or canvasses of much artistic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tunnels Completed In 2000
A tunnel is an underground passageway, dug through surrounding soil, earth or rock, and enclosed except for the entrance and exit, commonly at each end. A pipeline is not a tunnel, though some recent tunnels have used immersed tube construction techniques rather than traditional tunnel boring methods. A tunnel may be for foot or vehicular road traffic, for rail traffic, or for a canal. The central portions of a rapid transit network are usually in the tunnel. Some tunnels are used as sewers or aqueducts to supply water for consumption or for hydroelectric stations. Utility tunnels are used for routing steam, chilled water, electrical power or telecommunication cables, as well as connecting buildings for convenient passage of people and equipment. Secret tunnels are built for military purposes, or by civilians for smuggling of weapons, contraband, or people. Special tunnels, such as wildlife crossings, are built to allow wildlife to cross human-made barriers safely. Tunne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crossings Of The Yarra River
The Yarra River is a river in southern Victoria, Australia; which flows through the city of Melbourne Melbourne ( ; Boonwurrung/Woiwurrung: ''Narrm'' or ''Naarm'') is the capital and most populous city of the Australian state of Victoria, and the second-most populous city in both Australia and Oceania. Its name generally refers to a met .... Over the river's length there are many structures that bridge the river. Crossings The following is a partial list of structures have spanned the Yarra River in order of closest to the mouth of the river in Hobsons Bay. * There are also a number of ferries that cross the Yarra at various points such as the West Gate Ferry and Herring Island Punt. See also * Geography of the Yarra River References External links Collection of photos of bridges over the Yarra River {{DEFAULTSORT:Yarra River, Crossings Bridges in Victoria (state) Lists of bridges in Australia Lists of buildings and structures in Victoria (state) Li ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Toll Tunnels In Australia
Toll may refer to: Transportation * Toll (fee) a fee charged for the use of a road or waterway ** Road pricing, the modern practice of charging for road use ** Road toll (historic), the historic practice of charging for road use ** Shadow toll, payments made by government to the private sector operator of a road based on the number of vehicles using the road * Road toll (Australia and New Zealand), term for road death toll, i.e., the number of deaths caused annually by road accidents Brands and enterprises * Toll Brothers, Horsham Township, Pennsylvania based construction company founded by brothers Robert I. Toll and Bruce E. Toll * Toll Collect, a transportation support company in Germany * Toll Group, an Australian transportation company ** Toll Domestic Forwarding, an Australian freight forwarder ** Toll Ipec, Australian transportation company ** Toll Resources & Government Logistics Science * Toll (gene), encode members of the Toll-like receptor class of proteins * Toll ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tunnels In Victoria (Australia)
A tunnel is an underground passageway, dug through surrounding soil, earth or rock, and enclosed except for the entrance and exit, commonly at each end. A pipeline is not a tunnel, though some recent tunnels have used immersed tube construction techniques rather than traditional tunnel boring methods. A tunnel may be for foot or vehicular road traffic, for rail traffic, or for a canal. The central portions of a rapid transit network are usually in the tunnel. Some tunnels are used as sewers or aqueducts to supply water for consumption or for hydroelectric stations. Utility tunnels are used for routing steam, chilled water, electrical power or telecommunication cables, as well as connecting buildings for convenient passage of people and equipment. Secret tunnels are built for military purposes, or by civilians for smuggling of weapons, contraband, or people. Special tunnels, such as wildlife crossings, are built to allow wildlife to cross human-made barriers safely. Tunne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gradient
In vector calculus, the gradient of a scalar-valued differentiable function of several variables is the vector field (or vector-valued function) \nabla f whose value at a point p is the "direction and rate of fastest increase". If the gradient of a function is non-zero at a point , the direction of the gradient is the direction in which the function increases most quickly from , and the magnitude of the gradient is the rate of increase in that direction, the greatest absolute directional derivative. Further, a point where the gradient is the zero vector is known as a stationary point. The gradient thus plays a fundamental role in optimization theory, where it is used to maximize a function by gradient ascent. In coordinate-free terms, the gradient of a function f(\bf) may be defined by: :df=\nabla f \cdot d\bf where ''df'' is the total infinitesimal change in ''f'' for an infinitesimal displacement d\bf, and is seen to be maximal when d\bf is in the direction of the gradi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cofferdam
A cofferdam is an enclosure built within a body of water to allow the enclosed area to be pumped out. This pumping creates a dry working environment so that the work can be carried out safely. Cofferdams are commonly used for construction or repair of permanent dams, oil platforms, bridge piers, etc., built within water. These cofferdams are usually welded steel structures, with components consisting of Larssen sheet piling, sheet piles, Wale (ship part), wales, and cross timber framing, braces. Such structures are usually dismantled after the construction work is completed. The origin of the word comes from ''coffer'' (originally from Latin ''cophinus'' meaning "basket") and ''dam'' from Proto-Germanic, Proto-German ''*dammaz'' meaning "barrier across a stream of water to obstruct its flow and raise its level"). Uses For dam construction, two cofferdams are usually built, one upstream and one downstream of the proposed dam, after an alternative diversion tunnel or channel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Roadheader
A roadheader, also called a boom-type roadheader, road header machine, road header or just header machine, is a piece of excavating equipment consisting of a boom-mounted cutting head, a loading device usually involving a conveyor, and a crawler travelling track to move the entire machine forward into the rock face. The cutting head can be a general purpose rotating drum mounted in line or perpendicular to the boom, or can be special function heads such as jackhammer-like spikes, compression fracture micro-wheel heads like those on larger tunnel boring machines, a slicer head like a gigantic chain saw for dicing up rock, or simple jaw-like buckets of traditional excavators. History The first roadheader patent was applied for by Dr. Z. Ajtay in Hungary, in 1949. It was invented as a remote operated miner for exploitation of small seam, close walled deposits, typically in wet conditions. Types Cutting Heads: * Transverse - rotates parallel to the cutter boom axis * Longitudi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
A Current Affair (Australian TV Series)
''A Current Affair'' (or ''ACA'') is an Australian current affairs program airing weeknights and Saturday nights on the Nine Network. The program is currently hosted by Allison Langdon (Monday–Thursday) and Deborah Knight (Friday and Saturday). History 1970s ''A Current Affair'' was first broadcast on 22 November 1971, with Mike Willesee, screening weeknights at 7:00 p.m., and was broadcast for GTV-9. For part of its early run, the comedian and actor Paul Hogan had a comic social commentary segment. Under Willesee, ACA was a Transmedia production for the Nine Network. When Willesee left Nine in 1974 to move to the rival 0–10 Network (now known as Network 10), journalist Mike Minehan took over presenting ''ACA''. Other hosts included Sue Smith, Kevin Sanders and Michael Schildberger. The original ''A Current Affair'' was cancelled on 28 April 1978 due to strong competition in the 7:00 p.m. timeslot from ''Willesee at Seven'' on Seven Network and Graham Kenned ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
