The technology of transportation and storage of gas in a gas-hydrated form under atmospheric pressure and slight cooling – the maximum cooled gas-hydrated blocks of a large size covered with a layer of ice are offered. Large blocks form from pre-cooled mixture of crushed and the granulated mass of gas hydrate. The technology of forced preservation gas hydrates with ice layer under atmospheric pressure has developed to increase it stability. The dependence in dimensionless magnitudes, which describes the correlation-regressive relationship between the temperature of the surface and the center gas hydrate block under its forced preservation, had proposed to facilitate the use of research results. Technology preservation of gas hydrate blocks with the ice layer under atmospheric pressure (at the expense of the gas hydrates energy) has designed to improve their stability. Gas hydrated blocks, thus formed, can are stored and transported during a long time in converted vehicles without further cooling. The high stability of gas hydrate blocks allows to distributed in time (and geographically) the most energy expenditure operations – production and dissociation of gas hydrate. The proposed technical and technological solutions significantly reduce the level of energy and capital costs and, as a result, increase the competitiveness of the stages NGH technology (production, transportation, storage, regasification).
The article describes the vibration research effect of on strength increasing and soilcement density. Laboratory studies of vibration impact on soilcement during manufacturing on the basis of loam and sandy soils have been performed. The field experimental determination of deep high-frequency vibration influence on soilcement piles material characteristics has been fulfilled. The process of material shrinkage during manufacture has been investigated. The obtained results are introduced in the process of soilcement base and foundations placement. Field comparative tests with static compressive loading of three types of piles, including vibro-compacted soilcement piles, have been conducted. With the PLAXIS software system, and with it's axisymmetric particular version, the relationship between loading and soilcement piles settling was established. Numerical stamp tests modeling with the help of the software system PLAXIS was performed to detect the soilcement vibration influence on the reinforced base deformation.
The results of the executed economic comparison of foil-cement piles reinforcement use by vibroreinforced - vibroreinforced soil-cement piles are presented. The comparison is based on the results of piles bearing capacity by field tests. Considering the results of field tests two variants of piles foundation have been designed for residential building. Economical comparison is made for implementation effectiveness of reinforced and non-reinforced soil-cement piles at the piles calculated bearing capacity on the soil that is greater than the calculated bearing capacity by the material. .Economical comparison is made for implementation effectiveness of vibrated vibroreinforced soil-cement piles and bored piles at their calculated bearing capacity by the material at times greater than that on the soil. The obtained results and the determined economic effect are analyzed. The results of comparison are used for design and implemented in construction.
In the paper it is confirmed that any theoretical data inferior to precisely measured data due to the impossibility ofconsidering all the factors influencing on the oscillation process. The fluctuations magnitude of a non-residential building inPoltava and the dynamic influence on the building structure and the people who can be there periodically are experimentallyinvestigated. To evaluate the vibration impact, it is necessary to compare measured data with the permissible level ofvibration in public buildings. The recommendations for the further building exploitation are based on the building structuresvibration acceleration measurements results.
It is given the results of researching problems and prospects of real economy development and its leading sectors of economic activity – industry and construction. It is established the causes of development absence and inefficient functioning of these areas of management. On this basis the direction of innovation and high-tech industrial and organizational development and building complexes of the countr were determined. Modern mechanisms for the implementation of such strategic tasks at the expense creation and progress outrunning of domestic enterprises that are capable to use modern standards and strategic project management, the latest achievements of science, engineering and technology to develop and implement various investment projects and development programs were proposed. It is proved that research results should promote not only the progress of the real economy, industry and construction, but also to increase global living standards in Ukraine.
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