Formation of impulse load on operating tool driven in soil

Challenges for Development in Mining Science and Mining Industry

Tishchenko, I.V.^1

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

关键词: Experimental estimations;    Impulse load;    Penetration rates;    Pipe columns;    Rock breaking;    Static forces;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/262/1/012075/pdf
DOI  :  10.1088/1755-1315/262/1/012075

来源: IOP

【 摘 要 】

The author describes the experimental estimation procedure of impulse load generated in a rock-breaking rod overcoming resistance of soil. Oscillograms of power impulses in a pipe column are obtained in operation of generators with different energy efficiency and frequency. Penetration rate of a rod with selected geometry under vibration- percussion action is calculated. For comparison, the static force required for hammerless driving of rod in soil is found.