Unbalanced rock mass vibration generator and its bench testing

All-Russian Conference on Challenges for Development in Mining Science and Mining Industry devoted to the 85th anniversary of Academician Mikhail Kurlenya

Rybalkin, L.A.^1 ; Azarov, A.V.^1 ; Serdyukov, A.S.^1,2

Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia^1

Institute of Petroleum Geology and Geophysics, Novosibirsk, Russia^2

关键词: Bottom-hole zones;    Frequency characteristic;    Pneumatic devices;    Seismic-frequency range;    Source signals;    Spectral content;    Vibration generators;    Vibration sources;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/53/1/012030/pdf
DOI  :  10.1088/1755-1315/53/1/012030

来源: IOP

【 摘 要 】

This work presents an unbalanced borehole vibration source with the pneumatic actuator to affect the rock mass bottomhole zone in the seismic frequency range. The modulus-type source consists of the vibration generator with automatic step regulation of static moment, clamping node and built-in pneumatic device to transfer equipment in uncased boreholes. There are test results on the source prototype, amplitude and frequency characteristics and spectral content of the source signal.