2013
DOI: 10.1016/j.ijrmms.2013.08.013
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An experimental study of surface and sub-surface damage in pulsed water-jet breakage of rocks

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Cited by 108 publications
(32 citation statements)
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“…The impact force depended on the jet momentum, flow velocity and its distribution and the head structure and velocity Thus, in hard rock erosion and breakage applications, determination of an optimal standoff distance was vitally important to increase the erosion capability and breakage efficiency of the jet. 4 4. Experiment of breakage of hard rocks with interrupted pulsed water jet…”
Section: Numerical Simulation Of Interrupted Pulsed Jetmentioning
confidence: 99%
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“…The impact force depended on the jet momentum, flow velocity and its distribution and the head structure and velocity Thus, in hard rock erosion and breakage applications, determination of an optimal standoff distance was vitally important to increase the erosion capability and breakage efficiency of the jet. 4 4. Experiment of breakage of hard rocks with interrupted pulsed water jet…”
Section: Numerical Simulation Of Interrupted Pulsed Jetmentioning
confidence: 99%
“…The pressure of the water hammer responsible for erosion of the targets is composed of water hammer pressure and stagnation pressure, and it has been identified as a major factor driving rock breakage. 4,5 The pulsed water jet can be applied in several forms, such as compressed, interrupted and excited. 6 Of these, the interrupted pulsed water jet device controls the diameter, frequency and interval length of pulsed jet by adjusting jet pressure, rotational speed of the rotary disc, and the sizes of the nozzle, rotary disc and disc slots.…”
Section: Introductionmentioning
confidence: 99%
“…Zhang conducted numerical simulation to analyze the flow characteristics of different combinations of high pressure jet nozzles to improve the efficiency of drilling [5].Yang et al [6] studied the wear characteristics of the cemented carbide blades in drilling limestone with water jet, which concluded that the wear rates decrease with the increase of the nozzle diameter in the drill bit. Dehkhoda et al [7][8] investigated the capacity of pulsed water jets for creating internal breakdown, and the relative contributions of the pulse length and pulsation frequency on the surface and sub-surface damage caused by a…”
Section: Accepted Manuscriptmentioning
confidence: 99%
“…It is commonly agreed that the selective amplification and feedback of disturbance are the core elements to produce the pulsed jet [1][2][3][4] , as is shown in Fig. 1.…”
Section: Introductionmentioning
confidence: 99%