Study on Vibration Frequency and Rock Fragmentation Effect of Sonic Drill Rig

Li, Lianggang; Zhang, Bing; Qiang, Luo

doi:10.1016/j.proeng.2014.06.162

Cited by 7 publications

(7 citation statements)

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“…This is why, when calculating power, it is possible to start from generally accepted equations used in the calculations of power involved in classic rotational core drilling [2,5,10]. The forces for grinding material on the surface of the drilling bit are given by the following equations [10]:…”

Section: Calculation Of the Power Required For The Implementation Of mentioning

confidence: 99%

“…The torque M, which is generated by the load T on a micro-area, is given by the following equation [10]: …”

Section: Structural Drilling Using the High-frequency (Sonic) Rotary mentioning

confidence: 99%

“…with R -the outer diameter of the drill bit [in metres, m] Therefore, the torque for the entire drill bit is represented as follows [10]:…”

Section: Structural Drilling Using the High-frequency (Sonic) Rotary mentioning

confidence: 99%

“…n -the number of revolutions of the drill headdrill rods t -time [in seconds, s] Considering the fact that the high-frequency rotational method has been simplified as equivalent to the impact rotational method, the energy of the impact W may be calculated using the following equation [10]:…”

Section: Structural Drilling Using the High-frequency (Sonic) Rotary mentioning

confidence: 99%

“…The power of the high-frequency drill head at a known frequency is therefore given by the following equation [10]:…”

Section: F -The Force Of the Impact Of The Drill Bit On The Materials mentioning

confidence: 99%

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Structural drilling using the high-frequency (sonic) rotary method

Šporin

Vukelić

2017

Materials and Geoenvironment

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In Slovenia, there is widespread use of structural drilling along with classical core drilling. Recently, however, the need has arisen for a highly effective core drilling method with the aid of which high-quality core might be obtained. In order to achieve this aim, one among several Slovenian companies dealing with geological surveying has decided to implement structural drilling using a high-frequency drilling method. The following article presents the theoretical foundations for such a high-frequency method, as well as the manner of its implementation. In the final part of the article, a practical comparison between the conventional and the high-frequency core drilling methods is also provided.Key words: structural drilling, high-frequency method, core drilling, sonic drilling IzvlečekUporaba strukturnega vrtanja z uporabo klasičnega jedrovanja je v Sloveniji zelo razširjena. V zadnjem času pa se je pojavila potreba po visoko učinkoviti metodi jedrovanja s katero lahko pridobimo kvalitetno jedro. Za uresničitev tega se je eno izmed Slovenskih podjetij, ki se ukvarja z geološkimi raziskavami odločilo za izvajanje strukturnega vrtanja z uporabo visokofrekvenčne metode. V članku so prikazane teoretične osnove delovanja visokofrekvenčne metode in način njenega izvajanja. V zadnjem delu članka pa smo se posvetili praktični primerjavi med klasično in visokofrekvenčno metodo jedrovanja.Ključne besede: strukturno vrtanje, visokofrekvenčna metoda, jedrovanje

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Section: Calculation Of the Power Required For The Implementation Of mentioning

confidence: 99%

“…The torque M, which is generated by the load T on a micro-area, is given by the following equation [10]: …”

Section: Structural Drilling Using the High-frequency (Sonic) Rotary mentioning

confidence: 99%

“…with R -the outer diameter of the drill bit [in metres, m] Therefore, the torque for the entire drill bit is represented as follows [10]:…”

Section: Structural Drilling Using the High-frequency (Sonic) Rotary mentioning

confidence: 99%

Section: Structural Drilling Using the High-frequency (Sonic) Rotary mentioning

confidence: 99%

“…The power of the high-frequency drill head at a known frequency is therefore given by the following equation [10]:…”

Section: F -The Force Of the Impact Of The Drill Bit On The Materials mentioning

confidence: 99%

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Structural drilling using the high-frequency (sonic) rotary method

Šporin

Vukelić

2017

Materials and Geoenvironment

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Effect of Static Loading on Rock Fragmentation Efficiency Under Ultrasonic Vibration

Zhou

Yin²,

Zhao

2019

Geotech Geol Eng

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Experimental study on damage characteristics of granite under ultrasonic vibration load based on infrared thermography

et al. 2019

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Study on Vibration Frequency and Rock Fragmentation Effect of Sonic Drill Rig

Cited by 7 publications

References 0 publications

Structural drilling using the high-frequency (sonic) rotary method

Structural drilling using the high-frequency (sonic) rotary method

Effect of Static Loading on Rock Fragmentation Efficiency Under Ultrasonic Vibration

Experimental study on damage characteristics of granite under ultrasonic vibration load based on infrared thermography

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