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Information × Registration Number 0300U000313, 0199U001204 , R & D reports Title To develop and to introduce technology both solutions for strenghtening and stabilization of the basis both bases of buildings and facilities at construction and liquidation of mines popup.stage_title Розробити Схеми електричні принципові свердловинних снарядів випромінювача Head Korzh E.M., Registration Date 31-08-2000 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, subside, thus the settlings have irregular character, that calls destruction of the fundamentals and bases of 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 schemes electrical basic hole of shells of the radiator of a SI and block of control shells BCS of the gear launching-jacking DLJ are developed. Hole shells - radiators allow ring-out a researched array on a distance not less than 36 m. The excitation of a SI is made not by a "impact" high-voltage impulse voltage, and periodic sequence of radio pulses with frequency of filling equal to own resonant frequency pie zoelectric ceramic of the radiator. The outcomes of activity on a stage will be used at manufacturing of an experimental sample of the device. Ministries of a coal industry of Ukraine. Renovation of mines and them infra-structure Product Description popup.authors popup.nrat_date 2020-04-03 Close