Zberovskiy V.V., Vasilyev L.М., Zhulay Yu.А., Polyakov Yu.Ye., Narivskiy R.N., Pazynich A.V. Development of method for calculating parameters of hydroimpulse machine operating in the prone-to-outburst coal seams

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Parent Category: Geo-Technical Mechanics, 2016

Category: Geo-Technical Mechanics, 2016, Issue 130

Geoteh. meh. 2016, 130, 92-106

DEVELOPMENT OF METHOD FOR CALCULATING PARAMETERS OF HYDROIMPULSE MACHINE OPERATING IN THE PRONE-TO-OUTBURST COAL SEAMS
Zberovskiy V.V., Vasilyev L.М., Zhulay Yu.А., Polyakov Yu.Ye., Narivskiy R.N., Pazynich A.V. 
IGTM NAS of Ukraine

UDC 621.313.12-752.001.5:532.528

Abstract. The article describes results of theoretical and experimental studies of dependences between frequency and amplitude of oscillation conducted with the help of hydroimpulse device operating in the filter of the borehole. Process of the fluid pulsed injection was simulated at various regime parameters: injection pressure 5 ... 25 MPa, backwater pressure 0.1 ... 12 MPa, flow rate of fluid 25 ... 60 l/min, which corresponded to parameters of the coal-seams hydraulic loosing at the depth of their occurrence up to 1300 m. The investigations were carried out at different angles of the diffuser opening and length of critical section of the GV 2.5 oscillator. Analysis of the results allowed to substantiate the working parameter range of the pulsed fluid injection, and to develop a method for calculating parameters for the hydroimpulse machine operating in the prone-to-outburst coal seams.

Keywords: generator of cavitation, liquid injecting, frequency and amplitude of oscillation, parameter of cavitation, backwater pressure.

REFERENCES

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About the authors:

Zberovskiy Vasyliy Vladislavovych, Candidate of Technical Sciences (Ph.D.), Senior Researcher, Senior Researcher in Department of Rock Breaking Problems, N.S. Polyakov Institute of Geotechnical Mechanics under the National Academy of Sciences of Ukraine (IGTM, NASU), Dnepr, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. .

Vasilyev Leonid Mikhaylovich, Doctor of Technical Sciences (D.Sc.), Professor, Head of Department of Rock Breaking Problems, N.S. Polyakov Institute of Geotechnical Mechanics under the National Academy of Sciences of Ukraine (IGTM, NASU), Dnepr, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. .

Zhulay Yuriy Alekseevich, Candidate of Technical Sciences (Ph.D.), Senior Researcher, Principal Researcher, N.S. Polyakov Institute of Geotechnical Mechanics under the National Academy of Sciences of Ukraine (IGTM, NASU), Dnepr, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. .

Polyakov Yuriy Evgenevich, Master of Sciences (M.S.), Junior Researcher in Department of Rock Breaking Problems, N.S. Polyakov Institute of Geotechnical Mechanics under the National Academy of Sciences of Ukraine (IGTM, NASU), Dnepr, Ukraine., This email address is being protected from spambots. You need JavaScript enabled to view it. .

Narivskiy Roman Nikolaevich, Master of Sciences (M.S.), Junior Researcher in Department of Rock Breaking Problems, N.S. Polyakov Institute of Geotechnical Mechanics under the National Academy of Sciences of Ukraine (IGTM, NASU), Dnepr, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. .

Pazynich Artem Vyacheslavovich, Master of Sciences (M.S.), Engineer in Department of Rock Breaking Problems, N.S. Polyakov Institute of Geotechnical Mechanics under the National Academy of Sciences of Ukraine (IGTM, NASU), Dnepr, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

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