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Information × Registration Number 0399U003537, 0199U001204 , R & D reports Title To develop the ultrasonic device for detection of cavitces and vacuum under buildings, facilities and bases in zones of depression and underflooding at liquidation of mines popup.stage_title Розробити функціональні вимоги на прилад і функціональну схему прилада Head Korzh Yevgen Mykhajlovych, Registration Date 23-09-1999 Organization Research Institute of Organization and Mechanization of Mine Construction popup.description2 Methods and means of measurement by ultrasonic devices. Buildings and facilities, which are on territories with the developed layers, settling, thus the settlings have irregular character, that calls destruction of the fundamentals both bases of buildings and facility, and also buildings. By modern methods the state information of rocks under facilities cannot be obtained, creation of the ultrasonic device which is capable to reveal availability of cavitces and vacuum under buildings, facilities and bases and their spatial orientation therefore is necessary. Analytical and laboratory researches. Pursuant to the calendar plan the state-of-the-art review of existing analogs of means and methods is conducted, In the fundamentals of the developed device the ultrasonic way of research of mountain rocks is fixed. The technique of detection and outlining of cracks and vacuum in mountain rocks is developed. The developed device will enable verify sound an array on a distance not less than 36 м and to receive t he information on availability of cracks and vacuum and their spatial orientation, that will supply qualitative and economic fulfilment grouting of activities. The outcomes of activity on a stage will be used at development of an experimental sample of the device, Ministry of a Coal Industry Ukraine, renovation of mines and their infrastructure Product Description popup.authors popup.nrat_date 2020-04-03 Close