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Vacuum consolidation (or vacuum preloading) is a soft soil improvement method that has been successfully used by geotechnical engineers and specialists of ground improvement companies in countries such as Australia, China, Korea, Thailand and France for soil improvement or land reclamation. [1]
More recent construction uses the vacuum preloading method, which results in better compacted surfaces. A layer of marine deposits of silt and silty clay interspersed with sand, of recent date (~800 years BP). It is around 15 m thick, highly waterlogged, and considered a risk to liquefy during an earthquake.
Internal stress to a bearing through application of negative clearance is known as bearing preloading. Advantages of preloading include the following: maintain axial and radial position for accurate displacements of angular movements; increase bearing rigidity; prevent sliding or gyroscope-like movements, especially with high acceleration or ...
Pages in category "Preloading and prebinding" The following 4 pages are in this category, out of 4 total. This list may not reflect recent changes. P. Prefetcher;
The tideland reclamation was accomplished using a vacuum preloading method, with a planned size of 323.4 square kilometers. [33] There was some academic criticism of the project's potential damage to waterbird coastal habitats. [34]
Non evaporable getters (NEG), based on the principle of metallic surface sorption of gas molecules, are mostly porous alloys or powder mixtures of Al, Zr, Ti, V and Fe.They help to establish and maintain vacuums by soaking up or bonding to gas molecules that remain within a partial vacuum.
Vacuum systems usually consist of gauges, vapor jet and pumps, vapor traps and valves along with other extensional piping. A vessel that is operating under vacuum system may be any of these types such as processing tank, steam simulator, particle accelerator, or any other type of space that has an enclosed chamber to maintain the system in less than atmospheric gas pressure.
Vacuum arc remelting (VAR) is a secondary melting process for production of metal ingots with elevated chemical and mechanical homogeneity for highly demanding applications. [1] The VAR process has revolutionized the specialty traditional metallurgical techniques industry, and has made possible tightly controlled materials used in biomedical ...