|
Haul Road
A haul road (also ''haulage road'' or haul track) is a term for roads designed for heavy or bulk transfer of materials by haul trucks in the mining industry. It is also used for freight-only roads in other contexts, for example in South Boston leading to Conley Terminal. The term is used in the mining industry and can refer to roads that are inside mining operations, such as open-cut and surface mines. It can also be used for roads between mining operations and processing locations. Type of truck also governs road design and construction - articulated or rear dump. Determinations as the effectiveness or practicality of haul roads in mining management can include: *number of lanes *road width *road slope *road subbase material *geometry of curves of road Determination of the haul truck Haul trucks are off-road, heavy-duty dump trucks specifically engineered for use in high-production mining and exceptionally demanding construction environments. Most are dual axle; at least tw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Haul Truck
Haul trucks are off-road, heavy-duty dump trucks specifically engineered for use in high-production mining and exceptionally demanding construction environments. Most are dual axle; at least two examples of tri-axles were made in the 1970s. Haul trucks are denominated by their payload capacity, by weight (variously in tons, tonnes, and kg). Description Most haul trucks have a two-axle design, but two well-known models from the 1970s, the 350T Terex 33-19 "Titan", Terex Titan and 235T WABCO 3200/B, had three axles. Haul truck capacities range from to nearly . An example on the smaller end is the Caterpillar 775 (rated at ). Quarry operations (which produce payloads that have value) are typically employ smaller trucks than mining operations (such as removing undesirable overburden, an expense). Haul trucks can generally be distinguished from standard dump trucks by: * Being far too large to travel legally on public roads * Having a dump body made of exceptionally strong st ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mining Industry
Mining is the extraction of valuable geological materials and minerals from the surface of the Earth. Mining is required to obtain most materials that cannot be grown through agricultural processes, or feasibly created artificially in a laboratory or factory. Ores recovered by mining include metals, coal, oil shale, gemstones, limestone, chalk, dimension stone, rock salt, potash, gravel, and clay. The ore must be a rock or mineral that contains valuable constituent, can be extracted or mined and sold for profit. Mining in a wider sense includes extraction of any non-renewable resource such as petroleum, natural gas, or even water. Modern mining processes involve prospecting for ore bodies, analysis of the profit potential of a proposed mine, extraction of the desired materials, and final reclamation or restoration of the land after the mine is closed. Mining materials are often obtained from ore bodies, lodes, veins, seams, reefs, or placer deposits. The exploit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Conley Terminal
The Port of Boston (AMS Seaport Code: 0401, UN/LOCODE: US BOS) is a major seaport located in Boston Harbor and adjacent to the City of Boston. It is the largest port in Massachusetts and one of the principal ports on the East Coast of the United States. The Port of Boston was historically important for the growth of the City of Boston, and was originally located in what is now the downtown area of the city, called Long Wharf. Land reclamation and conversion to other uses means that the downtown area no longer handles commercial traffic, although there is still considerable ferry and leisure usage at Long Wharf. Today the principal cargo handling facilities are located in the Boston neighborhoods of Charlestown, East Boston, and South Boston, and in the neighboring city of Everett. The Port of Boston has also been an entry point for many immigrants. Administration The Massachusetts Port Authority (Massport) was created in 1956 by a special act of the Massachusetts General ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gross Vehicle Weight Rating
Vehicle weight is a measurement of wheeled motor vehicles; either an actual measured weight of the vehicle under defined conditions or a gross weight rating for its weight carrying capacity. Curb or kerb weight Curb weight (American English) or kerb weight (British English) is the total mass of a vehicle with standard equipment and all necessary operating consumables such as motor oil, transmission oil, brake fluid, coolant, air conditioning refrigerant, and sometimes a full tank of fuel, while not loaded with either passengers or cargo. The #Gross vehicle weight rating, gross vehicle weight is larger and includes the maximum payload of passengers and cargo. This definition may differ from definitions used by governmental regulatory agency, regulatory agencies or other organizations. For example, many European Union manufacturers include the weight of a driver and luggage to follow EU Directive 95/48/EC. Organizations may also define curb weight with fixed levels of fuel and othe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
