Experimental study on rock-breaking performance of water jets generated by self-rotatory bit and rock failure mechanism
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DOI: 10.1016/j.powtec.2019.01.078
Abstract: Abstract Tree-type borehole drilling and volume fracturing in underground coal mines is a new method for improving the homogeneous permeability of coal seam. A self-rotatory bit is a potentially efficient bit, which can improve the… read more here.
Keywords: self rotatory; rock breaking; water; rotatory bit ... See more keywords