electric pulse rock breaking

Plasma Rock Breaking: The Future of Blasting

2011-7-12 · A new highly-controllable plasma rock breaking method is changing the way contractors, quarry operators and mining companies perform hard-rock excavation. July 12, 2011 Written by George Ford

(PDF) Electric pulse breakdown and rock fracture in a …

2014-11-12 · High-voltage electro pulse rock-breaking is a green breaking technology, which can achieve high efficiency of rock-breaking. It has a wide …

Experimental and numerical analyses of electro-pulse rock …

2020-3-1 · In PPGD, an electric pulse between about 200 and 500 kV is applied across a rock sample to cause the rock to fracture. Typically, when such a high voltage discharge occurs on a rock surface, the ...

Electric pulse rock sample disaggregator | Semantic Scholar

Maxwell Physics International has developed and demonstrated a pulsed power-based system for disaggregating rocks, the Rock Sample Disaggregator 140L (RSD-140L) using pulse power. When a sufficiently powerful, short-duration, pulsed electric field is applied to rock particles between electrodes submerged in water, extensive ionization occurs along mineral grain …

Materials | Free Full-Text | Mechanism Analysis of Rock …

2022-3-16 · This work aims to investigate and analyse the mechanism of rock failure under high-voltage electropulses in order to evaluate and increase the efficiency of high-voltage pulse technology in geological well drilling, tunnel boring, and other geotechnical engineering applications. To this end, this paper discusses the equivalent circuit of electric pulse rock …

On electric-pulse well drilling and breaking of solids

Research work has been carried out to determine the power-efficient regime of operation of an electric-pulse setup for breaking and crushing natural stones. The optimal energy and geometrical parameters of the method (dependence of the degree of breakdown of materials on the voltage and the electrode spacing in the switching unit) have been established. The proposed method …

An Electro Breakdown Damage Model for Granite and …

A technique has been developed for rock breaking which could be considered as an alternative to drilling and blasting. A series of tests and measurements involving initial dielectric breakdown achieved with high frequency power, followed by highly localized heating achieved by capacitor discharge energy is described. This heating causes relatively nonviolent shattering of the rock.

Energies | Free Full-Text | Influences on High-Voltage …

2019-5-16 · As the exploration and drilling of oil, natural gas and geothermal wells are expanding continuously, research into high-efficiency rock drilling technology is imperative. High-voltage electro pulse boring (EPB) has the advantages of high rock breaking efficiency and good wall quality, and is a new and efficient potential method of rock breaking. The design of electrode …

Damage Model and Numerical Experiment of High-Voltage Electro Pulse ...

An Electro Breakdown Damage Model for Granite and Simulation …

Experimental Investigation on Rock-Breaking by High …

2022-6-6 · Abstract. Deep drilling and tunnel excavation rely on new rock-breaking technology. Currently, there is a lack of research on the micro mechanism of high-voltage electro-pulse boring (EPB). The design structure of the electrode bit is diverse, and there is still a great room for improving the service life of the electrode bit, the quality of the borehole wall, and the energy …

Electro Pulse Boring: An Experimental Rock-breaking …

2017-5-14 · Electro Pulse Boring: An Experimental Rock-breaking Technology for Low-cost Access to Ubiquitous, Inexhaustible, Autonomous, Ultra-deep (5-10 km) Geothermal Heat Leighty W.C., The Leighty Foundation, US

Plasma blasting

1992-12-1 · Shattering a 6 t rock using less than $0.01 worth of electricity is now possible. Perhaps even more important than its economic benefits is the fact that plasma blasting is safe and environmentally friendly technology. There are no toxic fumes, no nitrates in mine water and a minimal amount of dust. Also, the technique obviates the safety ...

Rock breakage by pulsed electric discharges | SpringerLink

2012-9-13 · Abstract. The electric pulse method applied to study the granite and concrete breakage at decimeter spacing between electrodes in water and their location at the surface and in boreholes has proved to be high-effective. The presence of boreholes significantly increases the breakage productivity and decreases power inputs.

Damage Model and Numerical Experiment of High …

2019-5-16 · High-voltage electro pulse boring (EPB) has the advantages of high rock-breaking efficiency and good wall quality, and is a new and efficient potential method of rock breaking. The EPB process is defined as random because it is affected by many factors. At present, there is no suitable physical and mathematical model to describe the process and results of rock …

Electrical Rock Breaking | Semantic Scholar

A technique has been developed for rock breaking which could be considered as an alternative to drilling and blasting. A series of tests and measurements involving initial dielectric breakdown achieved with high frequency power, followed by highly localized heating achieved by capacitor discharge energy is described. This heating causes relatively nonviolent shattering of the rock.

On the rock-breaking mechanism of plasma channel …

2020-5-1 · The traditional mechanical rock breaking and drilling method is the most widely used method at present. However, considering the impact of cost and environment, the improvement of rock-breaking ...

Electric Impulse Technology – Breaking Rock | Semantic …

2020-9-1 · DOI: 10.23919/EPE20ECCEEurope43536.2020.9215614 Corpus ID: 222220667; Electric Impulse Technology – Breaking Rock @article{Voigt2020ElectricIT, title={Electric Impulse Technology – Breaking Rock}, author={Matthias Voigt and Erik Anders and Franziska Lehmann and Margarita Mezzetti and Frank Will}, journal={2020 22nd European Conference on Power …

Influences on High-Voltage Electro Pulse Boring in Granite

2018-9-17 · High-voltage electro pulse boring (EPB) has the advantages of high rock breaking efficiency and good wall quality, and is a new and efficient potential method of rock breaking.